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d a t a sh eet product speci?cation supersedes data of 1999 sep 28 file under integrated circuits, ic03 1999 nov 22 integrated circuits TEA1111A speech circuit with dialler interface, regulated supply and earpiece volume control
1999 nov 22 2 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A features low dc line voltage; operates down to 1.5 v (excluding voltage drop across external polarity guard) line voltage regulator with adjustable dc voltage 3.25 v regulated strong supply point for peripheral circuits compatible with: C speech mode C ringer mode C trickle mode. transmit stage with: C microphone amplifier with symmetrical high impedance inputs C dtmf amplifier with confidence tone on earpiece. receive stage with: C earpiece amplifier with adjustable gain and volume control. mute input for pulse or dtmf dialling agc line loss compensation for microphone and earpiece led control output. applications line powered telephone sets with lcd module cordless telephones fax machines answering machines. general description the TEA1111A is a bipolar integrated circuit that performs all speech and line interface functions required in fully electronic telephone sets. it performs electronic switching between speech and dialling. the ic operates at a line voltage down to 1.5 v dc (with reduced performance) to facilitate the use of telephone sets connected in parallel. when the line current is high enough, a fixed amount of current is derived from the ln pin in order to create a strong supply point at pin v dd . the voltage at pin v dd is regulated to 3.25 v to supply peripherals such as dialler, lcd module and microcontroller. quick reference data i line = 15 ma; v ee =0v; v vci =0v; r slpe =20 w ; agc pin connected to v ee ; z line = 600 w ; f = 1 khz; measured according to test circuits given in figs 14, 15 and 16; t amb =25 c; unless otherwise speci?ed. symbol parameter conditions min. typ. max. unit i line line current operating range normal operation 11 - 140 ma with reduced performance 1 - 11 ma v ln dc line voltage 3.7 4.0 4.3 v i cc internal current consumption v cc = 3.3 v - 1.15 1.4 ma v cc supply voltage for internal circuitry (unregulated) i p =0ma - 3.3 - v v dd regulated supply voltage for peripherals speech mode i dd = - 3 ma 2.95 3.25 3.55 v ringer mode i dd = 75 ma 3.0 3.3 3.6 v i dd available supply current for peripherals --- 3ma g v(tx) typical voltage gain for microphone ampli?er v mic = 4 mv (rms) 43.2 44.2 45.2 db g v(qr) typical voltage gain for earpiece ampli?er v ir = 4 mv (rms) 26.4 27.4 28.4 db d g v(qr) volume control range for earpiece ampli?er 0 14.5 - db d g v(trx) gain control range for microphone and earpiece ampli?ers with respect to i line =15ma i line =85ma - 6.0 - db d g v(trx)(m) gain reduction for microphone and earpiece ampli?ers mute = low - 80 - db
1999 nov 22 3 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A ordering information block diagram type number package name description version TEA1111At so16 plastic small outline package; 16 leads; body width 3.9 mm sot109-1 handbook, full pagewidth fca051 vi vi vi vi current and voltage reference microphone amplifier receive amplifier earpiece amplifier low voltage circuit agc circuit volume control v dd regulator attenuator 0.5v cc TEA1111A 4 8 ir mute 13 14 mic + 6 dtmf mic - 10 5 v ee agc 12 9 11 gar vci qr 1 ln 7 v dd 16 v cc slpe ledc reg 2 15 3 led control fig.1 block diagram.
1999 nov 22 4 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A pinning symbol pin description ln 1 positive line terminal slpe 2 slope (dc resistance) adjustment reg 3 line voltage regulator decoupling ir 4 receive ampli?er input agc 5 automatic gain control/ line loss compensation dtmf 6 dual-tone multi-frequency input v dd 7 regulated supply for peripherals mute 8 mute input to select speech or dialling mode (active low) vci 9 volume control input v ee 10 negative line terminal qr 11 earpiece ampli?er output gar 12 earpiece ampli?er gain adjustment mic+ 13 non-inverting microphone ampli?er input mic - 14 inverting microphone ampli?er input ledc 15 led control output v cc 16 supply voltage for internal circuit handbook, halfpage TEA1111A fca052 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 ln slpe reg ir agc dtmf v dd mute vci v ee qr gar mic + mic - v cc ledc fig.2 pin configuration. functional description all data given in this chapter concerns typical values, except when otherwise specified. supply (pins ln, slpe, reg, v cc and v dd ) the supply for the TEA1111A and its peripherals is obtained from the telephone line (see fig.3). t he line interface ( pins ln, slpe and reg) the ic generates a stabilized reference voltage (v ref ) across pins ln and slpe. v ref is temperature compensated and can be adjusted by using an external resistor (r va ). v ref equals 3.8 v and can be increased by connecting r va between pins reg and slpe or decreased by connecting r va between pins reg and ln. the voltage at pin reg is used by the internal regulator to generate v ref and is decoupled by c reg , which is connected to v ee . this capacitor, converted to an equivalent inductance, (see section set impedance) determines the set impedance conversion from its dc value (r slpe ) to its ac value (r cc in the audio-frequency range). the voltage at pin slpe is proportional to the line current. the voltage at pin ln is: v ln =v ref +r slpe i slpe i slpe =i line - i cc - i p - i sup - i ledc where: i line = line current i cc = current consumption of the ic i p = supply current for external circuits i sup = current consumed between ln and v ee by the v dd regulator i ledc = supply current for external led circuitry. the preferred value for r slpe is 20 w . changing r slpe will affect more than the dc characteristics; it also influences the microphone and dtmf gains, the gain control characteristics, the sidetone level and the maximum output swing on the line. the dc line current flowing into the set is determined by the exchange supply voltage (v exch ), the feeding bridge resistance (r exch ), the dc resistance of the telephone line (r line ) and the reference voltage (v ref ). with line currents below i low (9 ma), the internal reference voltage (generating v ref ) is automatically adjusted to a lower value.
1999 nov 22 5 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A this means that several sets can operate in parallel with dc line voltages (excluding the polarity guard) down to an absolute minimum voltage of 1.5 v. at line currents below i low , the circuit has limited sending and receiving levels. this is called the low voltage area. t he internal supply point ( pin v cc ) the internal circuitry of the TEA1111A is supplied from pin v cc . this voltage supply is derived from the line voltage by means of a resistor (r cc ) and must be decoupled by a capacitor c vcc . it may also be used to supply some external circuits. the v cc voltage (see also figs 4 and 5) depends on the current consumed by the ic and the peripheral circuits as: v cc0 =v ln - r cc i cc v cc =v cc0 - r cc (i p +i rec ) where i rec is the current consumed by the output stage of the earpiece amplifier. handbook, full pagewidth c reg 4.7 m f r slpe 20 w i slpe fca053 i line i ledc r line v cc v ee reg slpe ln ledc v dd c vcc 100 m f c vdd 220 m f TEA1111A r cc i cc i ln i p i dd i sup r exch v exch peripherals external circuits from preamplifier v dd regulator internal circuitry led control led circuit fig.3 supply configuration.
1999 nov 22 6 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A handbook, halfpage mgk806 i rec external circuits i p v ee v cc v cc0 r cc fig.4 v cc used as supply voltage for external circuits. handbook, halfpage 2.2 2.6 3.4 2 0 1.6 fca054 3.0 1.2 0.8 0.4 (1) (2) i p (ma) v cc (v) fig.5 typical current i p available from v cc for peripheral circuitry. v cc 3 2.2 v; v ln = 4 v at i line = 15 ma; r cc = 619 w ; r slpe =20 w . (1) curve 1 is valid when the earpiece amplifier is driven: v qr(rms) = 150 mv; r l = 150 w . (2) curve 2 is valid when the earpiece amplifier is not loaded.
1999 nov 22 7 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A t he regulated supply point ( pin v dd ) the v dd regulator delivers a stabilized voltage for the peripherals in transmission mode (nominal v ln ) as well as in ringer mode (v ln = 0 v). the regulator (see fig.6) consists of a sense input circuit fed by pin ln, a current switch and a v dd output stabilizer. the regulator function depends on the transmission, ringer and trickle modes as follows: transmission mode: the regulator operates as a current source at the ln input; it takes a constant current of i sup = 4.3 ma (at nominal conditions) from pin ln. the current switch reduces the distortion on the line at large signal swings. output v dd follows the dc voltage at pin ln (with typically 0.35 v difference) up to v dd = 3.25 v. the input current of the regulator is constant while the output (source) current is determined by the consumption of the peripherals. the difference between input and output currents is shunted by the internal v dd stabilizer. ringer mode: the regulator operates as a shunt stabilizer to keep v dd at 3.3 v. the input voltage v ln equals 0 v while the input current into pin v dd is delivered by the ringing signal. v dd has to be decoupled by a capacitor c vdd . trickle mode: when v dd is below 2 v, the regulator is inhibited. the current consumption of the v dd regulator in trickle mode is very low to save most of the trickle current for memory retention of a dialler. handbook, full pagewidth fca055 i line r line v cc v ee ln v dd c vcc 100 m f c vdd 220 m f TEA1111A r cc i cc i ln r exch v exch peripherals sense switch v dd regulator i sup i dd fig.6 v dd regulator configuration.
1999 nov 22 8 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A led control (pin ledc) the TEA1111A gives an on-hook/off-hook status indication. this is achieved by a current made available at pin ledc to drive an external led circuit connected between pins slpe and ln (see fig.7). in the low voltage area, which corresponds to low line current conditions, no current is available for this led. for line currents higher than a threshold, the ledc current increases proportionally to the line current (with a ratio of 1:150). the ledc current is internally limited to 470 m a (see fig.8). for 12 ma < i line < 82 ma: this led circuit is referenced to slpe. consequently, all the led supply current will flow through the r slpe resistor, and does not affect the behaviour of the agc. set impedance in the audio frequency range, the dynamic impedance is mainly determined by the r cc resistor. the equivalent impedance of the circuit is illustrated in fig.9. i ledc i line 12 C 150 --------------------- = fca056 2.4 k w 24 w bc858b ln ledc slpe fig.7 led circuit configuration. handbook, halfpage 0 20 40 100 500 0 400 fca057 60 80 300 200 100 i ledc ( m a) i line (ma) fig.8 ledc current versus line current. handbook, halfpage ln v ee slpe r slpe c reg reg v cc r cc 4.7 m f 100 m f c vcc 619 w 20 w r p v ref l eq mbe788 fig.9 equivalent impedance between ln and v ee . l eq =c reg r slpe r p . r p = internal resistance. r p = 17.5 k w .
1999 nov 22 9 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A transmit stage (pins mic+, mic - and dtmf) m icrophone amplifier ( pins mic+ and mic - ) the TEA1111A has symmetrical microphone inputs. the input impedance between pins mic+ and mic - is 68 k w (2 34 k w ). the voltage gain from pins mic+/mic - to pin ln is set at 44.2 db (typical) at 600 w line load. automatic gain control is provided on this amplifier for line loss compensation. dtmf amplifier ( pin dtmf) when the dtmf amplifier is enabled, dialling tones may be sent on line. these tones are also sent to the receive output qr at a low level (confidence tone), the level is controlled by pin vci. the TEA1111A has an asymmetrical dtmf input. the input impedance between dtmf and v ee is 20 k w and it is biased at v ee . the voltage gain from pin dtmf to pin ln is set at 25.9 db. automatic gain control has no effect on the dtmf amplifier. receiving stage (pins ir, gar, qr and vci) the receive part consists of an earpiece amplifier and a volume control block. e arpiece amplifier the earpiece amplifier has one input (ir) and one output (qr). the input impedance between pin ir and pin v ee is 22 k w . when pin vci is tied to v ee , the voltage gain from pin ir to pin qr is set at 27.4 db (typical) which reduces the attenuation of the receive signal by the anti-sidetone network from 32 db to 4.6 db. the gain can be decreased by connecting an external resistor r garext between pins gar and qr; the adjustment range is 6 db. two external capacitors c gar (connected between pins gar and qr) and c gars (connected between pins gar and v ee ) ensure stability. capacitor c gar provides a first-order low-pass filter. the cut-off frequency corresponds to the time constant c gar r garint . where r garint is the internal resistor (123 k w typical) which sets the gain. the relationship c gars =10 c gar must be complied with to ensure stability. the output voltage of the earpiece amplifier is specified for continuous wave drive. the maximum output swing depends on the dc line voltage, the r cc resistor, the i cc current consumption of the circuit, the i p current consumption of the peripheral circuits and the load impedance. automatic gain control is provided on this amplifier for line loss compensation. v olume control ( pin vci) a positive dc voltage applied to pin vci allows the gain of the earpiece amplifier to be increased in steps of 4.85 db. the volume control range is 27.4 to 41.9 db (14.5 db typical). a proportional voltage decoder at pin vci defines a gain of 27.4 db when v vci equals v ee and a gain of 41.9 db when v vci equals v dd . the intermediate steps correspond to: and . automatic gain control (pin agc) the TEA1111A performs automatic line loss compensation. the automatic gain control varies the gain of the microphone amplifier and the gain of the receive amplifier in accordance with the dc line current. the control range is 6.0 db (which corresponds approximately to a line length of 5 km for a 0.5 mm diameter twisted-pair copper cable with a dc resistance of 176 w /km and an average attenuation of 1.2 db/km). the ic can be used with different configurations of feeding bridge (supply voltage and bridge resistance) by connecting an external resistor r agc between pins agc and v ee . this resistor enables the i start and i stop line currents to be increased (the ratio between i start and i stop is not affected by the resistor). the agc function is disabled when pin agc is left open circuit. mute function (pin mute) the mute function performs the switching between the speech mode and the dialling mode. when mute is low, the dtmf input is enabled and the microphone and receive amplifier inputs are disabled. in this mode, the dtmf tones are sent to the receive output at a low level (confidence tone). when mute is high, the microphone and receiving amplifiers inputs are enabled while the dtmf input is disabled. the mute input is provided with an internal pull-up current source to v dd . v vci 1 3 -- - v dd = v vci 2 3 -- - v dd =
1999 nov 22 10 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A sidetone suppression the TEA1111A anti-sidetone network comprising r cc // z line ,r ast1 ,r ast2 ,r ast3 ,r slpe and z bal (see fig.10) suppresses the transmitted signal in the earpiece. maximum compensation is obtained when the following conditions are fulfilled: the scale factor k is chosen to meet the compatibility with a standard capacitor from the e6 or e12 range for z bal . in practice, z line varies considerably with the line type and the line length. therefore, the value of z bal should be for an average line length, which gives satisfactory sidetone suppression with short and long lines. the suppression also depends on the accuracy of the match between z bal and the impedance of the average line. the anti-sidetone network for the TEA1111A attenuates the receive signal from the line by 32 db before it enters the receive stage. the attenuation is almost constant over the whole audio frequency range. a wheatstone bridge configuration (see fig.11) may also be used. more information on the balancing of an anti-sidetone bridge can be obtained in our publication semiconductors for wired telecom systems; applications handbook ic03b . for ordering information, please contact the philips semiconductors sales office. r slpe r ast1 r cc r ast2 ( r ast3 ) + = k r ast2 r ast3 r slpe + () r ast1 r slpe ------------------------------------------------------------ = z bal kz line = handbook, full pagewidth mbe787 i m z ir ir r ast1 r ast3 r ast2 slpe r slpe v ee z line r cc ln z bal fig.10 equivalent circuit of TEA1111A anti-sidetone bridge.
1999 nov 22 11 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A handbook, full pagewidth mbe786 i m z ir ir z bal r ast1 slpe r slpe v ee z line r cc ln r a fig.11 equivalent circuit of an anti-sidetone network in a wheatstone bridge configuration. limiting values in accordance with the absolute maximum rating system (iec 134). symbol parameter conditions min. max. unit v ln positive continuous line voltage v ee - 0.4 12 v repetitive line voltage during switch-on or line interruption v ee - 0.4 13.2 v i dd maximum input current at pin v dd - 75 ma v cc supply voltage v ee - 0.4 12 v v mute ,v vci maximum voltage on pins mute and vci v ee - 0.4 v dd + 0.4 v v n(max) maximum voltage on all pins except pins v dd , mute and vci v ee - 0.4 v cc + 0.4 v i line line current r slpe =20 w ; see fig.12 - 140 ma p tot TEA1111At total power dissipation t amb =75 c; see fig.12 - 416 mw t stg storage temperature - 40 +125 c t amb ambient temperature - 25 +75 c t j junction temperature - +125 c
1999 nov 22 12 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A thermal characteristics note 1. mounted on epoxy board 40.1 19.1 1.5 mm. symbol parameter conditions value unit r th(j-a) thermal resistance from junction to ambient in free air; note 1 110 k/w handbook, full pagewidth 12 150 30 24 36 59 811 10 fca058 7 50 70 90 110 130 (4) (3) (2) (1) i ln (ma) v ln - v slpe (v) fig.12 so16 safe operating area (TEA1111At). (1) t amb =45 c; p tot = 0.666 w. (2) t amb =55 c; p tot = 0.583 w. (3) t amb =65 c; p tot = 0.500 w. (4) t amb =75 c; p tot = 0.416 w.
1999 nov 22 13 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A characteristics i line = 15 ma; v ee =0v; v vci =0v; r slpe =20 w ; pin agc connected to v ee ; z line = 600 w ; f = 1 khz; measured according to test circuits given in figs 14, 15 and 16; t amb =25 c; unless otherwise speci?ed. symbol parameter conditions min. typ. max. unit supply (pins ln, v cc , slpe, reg and v dd ) t he line interface ( pins ln, slpe and reg) v ref stabilized reference voltage between pins ln and slpe 3.5 3.8 4.1 v v ln dc line voltage i line =1ma - 1.5 - v i line =4ma - 2.5 - v i line = 15 ma 3.7 4.0 4.3 v i line = 140 ma - 6.7 7.2 v v ln(rext) dc line voltage with an external resistor r va r va =90k w (between pins ln and reg) - 3.6 - v d v ln(t) dc line voltage variation with temperature referenced to 25 c t amb = - 25 to +75 c - 40 - mv t he internal supply point ( pin v cc ) i cc internal current consumption v cc = 3.3 v - 1.15 1.4 ma v cc supply voltage for internal circuitry i p =0ma - 3.3 - v t he regulated supply point ( pin v dd ) i sup input current of the v dd regulator (current from pin ln not ?owing through pin slpe) i line =1ma - 0 - ma i line =4ma - 1.2 - ma i line 3 11 ma - 4.3 - ma v dd regulated supply voltage in: speech mode i dd = - 3 ma; v ln > 3.6 v + 0.28 v (typ.); i line 3 11 ma 2.95 3.25 3.55 v speech mode at reduced performance i line =4ma - v ln - 0.35 - v ringer mode i line = 0 ma; i dd = 75 ma 3.0 3.3 3.6 v i dd regulated supply current available in: speech mode i line 3 11 ma -- - 3ma speech mode at reduced performance i line =4ma -- 1 - ma trickle mode i line = 0 ma; v cc discharging; v dd = 1.2 v -- 100 na
1999 nov 22 14 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A led control (pin ledc) i line(h) highest line current for i ledc <5 m a - 13 - ma i line(l) lowest line current for maximum i ledc - 82 - ma i ledc(max) maximum available output current from pin ledc - 470 -m a transmit stage (pins mic+, mic - and dtmf) m icrophone amplifier ( pins mic+ and mic - ) ? z i ? input impedance differential between pins mic+ and mic - - 68 - k w single-ended between pins mic+/mic - and v ee - 34 - k w g v(tx) voltage gain from pins mic+/mic - to pin ln v mic = 4 mv (rms) 43.2 44.2 45.2 db d g v(tx)(f) voltage gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.2 - db d g v(tx)(t) voltage gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.3 - db cmrr common mode rejection ratio - 80 - db v ln(max)(rms) maximum sending signal (rms value) i line = 15 ma; thd = 2% 1.8 2 - v i line = 4 ma; thd = 10% - 0.45 - v v no(ln) noise output voltage at pin ln psophometrically weighted (p53 curve); pins mic+/mic - short circuited through 200 w -- 77 - dbmp dtmf amplifier ( pin dtmf) ? z i ? input impedance - 20 - k w g v(dtmf) voltage gain from pin dtmf to pin ln v dtmf = 20 mv (rms); mute = low 24.9 25.9 26.9 db d g v(dtmf)(f) voltage gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.2 - db d g v(dtmf)(t) voltage gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.4 - db g v(ct) voltage gain from pin dtmf to pin qr (con?dence tone) v dtmf = 20 mv (rms); r l = 150 w ; mute = low; v vci =0v -- 15.6 - db symbol parameter conditions min. typ. max. unit
1999 nov 22 15 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A receive stage (pins ir, gar, qr and vci) t he earpiece amplifier ( pins ir and qr) ? z i ? input impedance - 22 - k w g v(qr) voltage gain from pin ir to pin qr v ir = 4 mv (rms); v vci =0 v 26.4 27.4 28.4 db d g v(qr)(f) voltage gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.2 - db d g v(qr)(t) voltage gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.3 - db d g v(qr) voltage gain reduction range external resistor connected between pins gar and qr -- 6db v qr(max)(rms) maximum receiving signal on pin qr (rms value) i p = 0 ma; sine wave drive; r l = 150 w ; thd = 2%; v vci =v dd 0.5 0.6 - v i p = 0 ma; sine wave drive; r l = 450 w ; thd = 2%; v vci =v dd 0.8 0.9 - v v no(qr)(rms) noise output voltage at pin qr (rms value) ir open circuit; r l = 150 w ; v vci =0v; psophometrically weighted (p53 curve) -- 90 - dbvp v vci =v dd -- 75 - dbvp v olume control ( pin vci) d g v(qr)max maximum increase in voltage gain v ir = 4 mv (rms); v vci =v dd 12 14.5 17 db d g v(qr)step step voltage gain v ir = 4 mv (rms) 3.85 4.85 5.85 db automatic gain control (pin agc) d g v(trx) voltage gain control range for microphone and earpiece ampli?ers w.r.t. i line =15ma i line =85ma - 6.0 - db i start highest line current for maximum gain - 23 - ma i stop lowest line current for min. gain - 59 - ma mute function (pin mute) v il low-level input voltage v ee - 0.4 - v ee + 0.3 v v ih high-level input voltage v ee + 1.5 - v dd + 0.4 v i mute input current - 10 - 2 -m a d g v(trx)(m) voltage gain reduction for: microphone amplifier mute = low - 80 - db earpiece amplifier mute = low - 80 - db dtmf amplifier mute = high - 80 - db symbol parameter conditions min. typ. max. unit
1999 nov 22 16 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A test and application information handbook, full pagewidth fca059 r bal1 130 w r bal2 820 w r slpe 20 w r ast2 3.92 k w r ast3 r prot 1n4004 392 w r cc 619 w 24 w 2.4 k w r ast1 130 k w 4.7 m f c reg c mic - r agc rz r tx1 r tx2 c dtmf c vdd 220 m f c gar 100 pf c bal 220 nf 220 nf TEA1111A ln ba ab slpe 100 m f c vcc cz c ir 100 nf 10 m f c mic + reg ir agc dtmf dtmf peripheral supply v dd v dd v ee mute mute v cc ledc mic - mic - mic + mic + qr gar v ee vci c ear 1 nf c gars r tx3 d1 d2 dz v d 10 v c emc 10 nf d3 d4 vci 1 vci 0 earpiece bc858 r garext r 2r fig.13 basic application diagram.
1999 nov 22 17 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A handbook, full pagewidth fca060 v cc v dd ln ledc TEA1111A r cc 619 w i dd i cc i ln i line i line ir mic - mic + dtmf qr c reg 4.7 m f r slpe 20 w 100 m f bc858 600 w reg agc slpe v ee vci mute gar 10 m f c vdd 220 m f c vcc 100 m f c gars c gar r l r garext v o v mic s1 v dtmf 3 ma 24 w 2.4 k w fig.14 test circuit for defining transmit gains. voltage gain defined as g v = 20 log ; v i =v mic or v dtmf . microphone gain: s1 = open. dtmf gain: s1 = closed. inputs not being tested should be open circuit. v o v i -------
1999 nov 22 18 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A handbook, full pagewidth fca061 v cc v dd ln ledc TEA1111A r cc 619 w i dd i cc i ln i line 100 m f bc858 i line ir mic - mic + dtmf qr c reg 4.7 m f r slpe 20 w 600 w reg agc slpe v ee vci mute gar 10 m f c vdd 220 m f c vcc 100 m f c gars c gar r l r garext s1 v dtmf e vci 3 ma 24 w 2.4 k w 220 nf v ir v o fig.15 test circuit for defining earpiece gains. voltage gain defined as g v = 20 log ; v i =v ir or v dtmf . earpiece gain: s1 = open. confidence tone: s1 = closed. inputs not being tested should be open circuit. v o v i -------
1999 nov 22 19 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A handbook, full pagewidth fca062 v cc v dd ln ir 10 m f TEA1111A r cc 619 w i dd v cc v dd mic - mic + dtmf ledc qr gar vci c reg 4.7 m f r slpe 20 w reg agc slpe v ee mute fig.16 test circuit for defining regulated supply (v dd ) performance in ringer and trickle modes. inputs not being tested should be open circuit.
1999 nov 22 20 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A package outline x w m q a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 8 9 1 16 y pin 1 index unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec eiaj mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.0 9.8 4.0 3.8 1.27 6.2 5.8 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 1.0 0.4 sot109-1 95-01-23 97-05-22 076e07s ms-012ac 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.39 0.38 0.16 0.15 0.050 1.05 0.041 0.244 0.228 0.028 0.020 0.028 0.012 0.01 0.25 0.01 0.004 0.039 0.016 0 2.5 5 mm scale so16: plastic small outline package; 16 leads; body width 3.9 mm sot109-1
1999 nov 22 21 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A soldering introduction to soldering surface mount packages this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our data handbook ic26; integrated circuit packages (document order number 9398 652 90011). there is no soldering method that is ideal for all surface mount ic packages. wave soldering is not always suitable for surface mount ics, or for printed-circuit boards with high population densities. in these situations reflow soldering is often used. re?ow soldering reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. typical reflow peak temperatures range from 215 to 250 c. the top-surface temperature of the packages should preferable be kept below 230 c. wave soldering conventional single wave soldering is not recommended for surface mount devices (smds) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. to overcome these problems the double-wave soldering method was specifically developed. if wave soldering is used the following conditions must be observed for optimal results: use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. for packages with leads on two sides and a pitch (e): C larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; C smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. the footprint must incorporate solder thieves at the downstream end. for packages with leads on four sides, the footprint must be placed at a 45 angle to the transport direction of the printed-circuit board. the footprint must incorporate solder thieves downstream and at the side corners. during placement and before soldering, the package must be fixed with a droplet of adhesive. the adhesive can be applied by screen printing, pin transfer or syringe dispensing. the package can be soldered after the adhesive is cured. typical dwell time is 4 seconds at 250 c. a mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. manual soldering fix the component by first soldering two diagonally-opposite end leads. use a low voltage (24 v or less) soldering iron applied to the flat part of the lead. contact time must be limited to 10 seconds at up to 300 c. when using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 c.
1999 nov 22 22 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A suitability of surface mount ic packages for wave and re?ow soldering methods notes 1. all surface mount (smd) packages are moisture sensitive. depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). for details, refer to the drypack information in the data handbook ic26; integrated circuit packages; section: packing methods . 2. these packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 3. if wave soldering is considered, then the package must be placed at a 45 angle to the solder wave direction. the package footprint must incorporate solder thieves downstream and at the side corners. 4. wave soldering is only suitable for lqfp, tqfp and qfp packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 5. wave soldering is only suitable for ssop and tssop packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. definitions life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. package soldering method wave reflow (1) bga, sqfp not suitable suitable hlqfp, hsqfp, hsop, htqfp, htssop, sms not suitable (2) suitable plcc (3) , so, soj suitable suitable lqfp, qfp, tqfp not recommended (3)(4) suitable ssop, tssop, vso not recommended (5) suitable data sheet status objective speci?cation this data sheet contains target or goal speci?cations for product development. preliminary speci?cation this data sheet contains preliminary data; supplementary data may be published later. product speci?cation this data sheet contains ?nal product speci?cations. limiting values limiting values given are in accordance with the absolute maximum rating system (iec 134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the speci?cation.
1999 nov 22 23 philips semiconductors product speci?cation speech circuit with dialler interface, regulated supply and earpiece volume control TEA1111A notes
? philips electronics n.v. sca all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owne r. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not con vey nor imply any license under patent- or other industrial or intellectual property rights. internet: http://www.semiconductors.philips.com 1999 68 philips semiconductors C a worldwide company for all other countries apply to: philips semiconductors, international marketing & sales communications, building be-p, p.o. box 218, 5600 md eindhoven, the netherlands, fax. +31 40 27 24825 argentina: see south america australia: 3 figtree drive, homebush, nsw 2140, tel. +61 2 9704 8141, fax. +61 2 9704 8139 austria: computerstr. 6, a-1101 wien, p.o. box 213, tel. +43 1 60 101 1248, fax. +43 1 60 101 1210 belarus: hotel minsk business center, bld. 3, r. 1211, volodarski str. 6, 220050 minsk, tel. +375 172 20 0733, fax. +375 172 20 0773 belgium: see the netherlands brazil: see south america bulgaria: philips bulgaria ltd., energoproject, 15th floor, 51 james bourchier blvd., 1407 sofia, tel. +359 2 68 9211, fax. +359 2 68 9102 canada: philips semiconductors/components, tel. +1 800 234 7381, fax. +1 800 943 0087 china/hong kong: 501 hong kong industrial technology centre, 72 tat chee avenue, kowloon tong, hong kong, tel. +852 2319 7888, fax. +852 2319 7700 colombia: see south america czech republic: see austria denmark: sydhavnsgade 23, 1780 copenhagen v, tel. +45 33 29 3333, fax. +45 33 29 3905 finland: sinikalliontie 3, fin-02630 espoo, tel. +358 9 615 800, fax. +358 9 6158 0920 france: 51 rue carnot, bp317, 92156 suresnes cedex, tel. +33 1 4099 6161, fax. +33 1 4099 6427 germany: hammerbrookstra?e 69, d-20097 hamburg, tel. +49 40 2353 60, fax. +49 40 2353 6300 hungary: see austria india: philips india ltd, band box building, 2nd floor, 254-d, dr. annie besant road, worli, mumbai 400 025, tel. +91 22 493 8541, fax. +91 22 493 0966 indonesia: pt philips development corporation, semiconductors division, gedung philips, jl. buncit raya kav.99-100, jakarta 12510, tel. +62 21 794 0040 ext. 2501, fax. +62 21 794 0080 ireland: newstead, clonskeagh, dublin 14, tel. +353 1 7640 000, fax. +353 1 7640 200 israel: rapac electronics, 7 kehilat saloniki st, po box 18053, tel aviv 61180, tel. +972 3 645 0444, fax. +972 3 649 1007 italy: philips semiconductors, via casati, 23 - 20052 monza (mi), tel. +39 039 203 6838, fax +39 039 203 6800 japan: philips bldg 13-37, kohnan 2-chome, minato-ku, tokyo 108-8507, tel. +81 3 3740 5130, fax. +81 3 3740 5057 korea: philips house, 260-199 itaewon-dong, yongsan-ku, seoul, tel. +82 2 709 1412, fax. +82 2 709 1415 malaysia: no. 76 jalan universiti, 46200 petaling jaya, selangor, tel. +60 3 750 5214, fax. +60 3 757 4880 mexico: 5900 gateway east, suite 200, el paso, texas 79905, tel. +9-5 800 234 7381, fax +9-5 800 943 0087 middle east: see italy netherlands: postbus 90050, 5600 pb eindhoven, bldg. vb, tel. +31 40 27 82785, fax. +31 40 27 88399 new zealand: 2 wagener place, c.p.o. box 1041, auckland, tel. +64 9 849 4160, fax. +64 9 849 7811 norway: box 1, manglerud 0612, oslo, tel. +47 22 74 8000, fax. +47 22 74 8341 pakistan: see singapore philippines: philips semiconductors philippines inc., 106 valero st. salcedo village, p.o. box 2108 mcc, makati, metro manila, tel. +63 2 816 6380, fax. +63 2 817 3474 poland : al.jerozolimskie 195 b, 02-222 warsaw, tel. +48 22 5710 000, fax. +48 22 5710 001 portugal: see spain romania: see italy russia: philips russia, ul. usatcheva 35a, 119048 moscow, tel. +7 095 755 6918, fax. +7 095 755 6919 singapore: lorong 1, toa payoh, singapore 319762, tel. +65 350 2538, fax. +65 251 6500 slovakia: see austria slovenia: see italy south africa: s.a. philips pty ltd., 195-215 main road martindale, 2092 johannesburg, p.o. box 58088 newville 2114, tel. +27 11 471 5401, fax. +27 11 471 5398 south america: al. vicente pinzon, 173, 6th floor, 04547-130 s?o paulo, sp, brazil, tel. +55 11 821 2333, fax. +55 11 821 2382 spain: balmes 22, 08007 barcelona, tel. +34 93 301 6312, fax. +34 93 301 4107 sweden: kottbygatan 7, akalla, s-16485 stockholm, tel. +46 8 5985 2000, fax. +46 8 5985 2745 switzerland: allmendstrasse 140, ch-8027 zrich, tel. +41 1 488 2741 fax. +41 1 488 3263 taiwan: philips semiconductors, 6f, no. 96, chien kuo n. rd., sec. 1, taipei, taiwan tel. +886 2 2134 2886, fax. +886 2 2134 2874 thailand: philips electronics (thailand) ltd., 209/2 sanpavuth-bangna road prakanong, bangkok 10260, tel. +66 2 745 4090, fax. +66 2 398 0793 turkey: yukari dudullu, org. san. blg., 2.cad. nr. 28 81260 umraniye, istanbul, tel. +90 216 522 1500, fax. +90 216 522 1813 ukraine : philips ukraine, 4 patrice lumumba str., building b, floor 7, 252042 kiev, tel. +380 44 264 2776, fax. +380 44 268 0461 united kingdom: philips semiconductors ltd., 276 bath road, hayes, middlesex ub3 5bx, tel. +44 208 730 5000, fax. +44 208 754 8421 united states: 811 east arques avenue, sunnyvale, ca 94088-3409, tel. +1 800 234 7381, fax. +1 800 943 0087 uruguay: see south america vietnam: see singapore yugoslavia: philips, trg n. pasica 5/v, 11000 beograd, tel. +381 11 62 5344, fax.+381 11 63 5777 printed in the netherlands 465002/02/pp 24 date of release: 1999 nov 22 document order number: 9397 750 06482

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