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INTEGRATED CIRCUITS DATA SHEET TDA1576 FM/IF amplifier/demodulator circuit Product specification Supersedes data of March 1985 File under Integrated Circuits, IC01 1998 Nov 18 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit FEATURES * Symmetrical limiting IF amplifier * Symmetrical quadrature demodulator * Internal muting circuit * Symmetrical AFC output * Field strength indication output * Detune detector * Reference voltage output * Electronic smoothing of the supply voltage * Standby on/off switching circuit. QUICK REFERENCE DATA fo = 10.7 MHz; f = 22.5 kHz; fm = 400 Hz; QL = 20; 50 s de-emphasis. SYMBOL VP IP ViIF(rms) PARAMETER supply voltage (pin 1) supply current input sensitivity (RMS value) VP = 8.5 V VP = 15 V S+N ------------- = 26 dB N S+N ------------- = 46 dB N VoAF(rms) THD AF output voltage (RMS value) total harmonic distortion single tuned circuit two tuned circuits S+N ------------N signal plus noise-to-noise ratio ViIF > 1 mV (RMS); VP = 8.5 V ViIF > 1 mV (RMS); VP = 15 V AM fi Vi IL Tamb AM suppression AFC offset drift field strength indication permissible indicator load current operating ambient temperature - - - - - - - - -30 0.1 0.02 76 80 50 3 90 - - - - - - - 6 - 2 VP = 8.5 V VP = 15 V CONDITIONS - - - - - - MIN. 7.5 - 16 18 22 8 35 67 135 TYP. - - - - - - - GENERAL DESCRIPTION TDA1576 The TDA1576 is a monolithic integrated FM/IF amplifier circuit for use in mono and stereo FM-receivers of car radios or home sets. MAX. 20 V UNIT mA mA V V V mV mV % % dB dB dB kHz dB mA C -3 dB before limiting - +80 ORDERING INFORMATION TYPE NUMBER TDA1576 1998 Nov 18 PACKAGE NAME DIP18 DESCRIPTION plastic dual in-line package; 18 leads (300 mil) 2 VERSION SOT102-1 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... ok, full pagewidth 1998 Nov 18 VFB1 17 RS ViIF 0.1 F RS 0.1 F VS VFB2 16 0.1 F 25 k 25 k VilF 15 4-STAGE LIMITER/ AMPLIFIER LEVEL DETECTOR BLOCK DIAGRAM Philips Semiconductors FM/IF amplifier/demodulator circuit + 0.1 F 10 VP (15 V) 1 8.3 k 5.5 k + AFC voltage - 47 F 33 pF IF1 3 560 pF 33 pF L(2) 750 IF2 RES2 7 6 15 k 15 k RES1 4 CPS 2 MUTING 250 QUADRATURE DEMODULATOR 3.7 k 3.7 k 8 VoAF1 9 VoAF2 (3.3 k) VoAF C8-9(1) TDA1576 1.7 V INDICATOR DRIVER STANDBY SWITCH 4V (6 VBE) 20 k 13 VF 3.6 k A 1 mA (AM) 1 nF (25 k) FM on + (<23 V) reference voltage 14 VF0 5 FMON INTERNAL POWER SUPPLY 5.3 V (185 VT) 12 Vref 220 k DETUNE DETECTOR G I11 = 0.5 mA 11 Vo(det) 10 Vi(det) Z8-10 (240 k) Z9-10 (180 k) 3 field strength indicator level output zero adjustment for of field strength field strength indicator 18 GND 0.47 F 10 k MGE456 detune voltage Product specification TDA1576 (1) For 50 s de-emphasis: C8-9 = 6.8 nF; for stereo operation C8-9 = 56 pF. (2) L = 0.38 H; Qo = 70; QL = 20; adjusted to minimum 2nd harmonic distortion (d2); at Vi = 1 mV; coil: 6 turns CuL (0.25 mm) on coil former KAN (C). Fig.1 Block diagram and test circuit. Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit PINNING SYMBOL VP CPS IF1 RES1 FMON RES2 IF2 VoAF1 VoAF2 Vi(det) Vo(det) Vref VF VF0 ViIF VFB2 VFB1 GND PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 DESCRIPTION positive supply voltage smoothing capacitor of power supply IF signal to resonant circuit resonant circuit input 1 FM-ON, standby switch resonant circuit input 2 IF signal to resonant circuit AF output voltage 1 (0 phase) AF output voltage 2 (180 phase) detune detector input voltage for external audio reference detune detector output voltage reference voltage output level output for field strength zero adjust voltage for field strength FM/IF input signal voltage DC feedback 2 DC feedback 1 ground (0 V) Fig.2 Pin configuration. handbook, halfpage TDA1576 VP CPS IF1 RES1 FMON RES2 IF2 VoAF1 VoAF2 1 2 3 4 5 6 7 8 9 MBH286 18 GND 17 VFB1 16 VFB2 15 VilF TDA1576 14 VF0 13 VF 12 Vref 11 Vo(det) 10 Vi(det) 1998 Nov 18 4 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VP V2 V5, 14 V12 V13 Ptot Tstg Tamb supply voltage (pin 1) voltage on pin 2 voltage on pins 5 and 14 voltage on pin 12 voltage on pin 13 total power dissipation storage temperature operating ambient temperature PARAMETER 0 0 0 0 0 0 -55 -30 MIN. 23 VP 23 7 6 800 +150 +80 MAX. TDA1576 UNIT V V V V V mW C C THERMAL CHARACTERISTICS SYMBOL Rth j-a PARAMETER thermal resistance from junction to ambient in free air VALUE 80 UNIT K/W 1998 Nov 18 5 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576 CHARACTERISTICS VP = 7.5 to 20 V; fIF = 10.7 MHz; RS = 60 ; fm = 400 Hz with f = 22.5 kHz; 50 s de-emphasis (C8-9 = 6.8 nF); Tamb = 25 C and measurements taken in Fig.1; unless otherwise specified. The demodulator circuit is adjusted at minimum second harmonic distortion for ViIF = 1 mV and a deviation f = 75 kHz. SYMBOL Supply IP supply current without load I12 = I13 = 0; VP = 8.5 V I12 = I13 = 0; VP = 15 V IF amplifier/detector ViIF(rms) input sensitivity (RMS value; pin 15) -3 dB before limiting S+N ------------- = 26 dB N S+N ------------- = 46 dB N VoIF(p-p) R3-7 Z4-6 C4-6 R8, 9 V8, 9 VoAF(rms) THD output voltage at pins 3 and 7 (peak-to-peak value) output resistance input impedance input capacitance output resistance DC output voltage AF output voltage (RMS value) total harmonic distortion single tuned circuit two tuned circuits S+N ------------N signal plus noise-to-noise ratio (pins 8 and 9) QL = 20 - - - B = 250 Hz to 15 kHz; Vi > 1 mV (RMS); VP = 8.5 V B = 250 Hz to 15 kHz; - Vi > 1 mV (RMS); VP = 15 V AM AM suppression ViIF = 10 mV; - FM: 70 Hz; f = 22.5 kHz; AM: 1 kHz; m = 30%; note 1 > 40 dB VP = 100 mV (RMS); C2 = 47 F VP = 8.5 V VP = 15 V 0.5 43 - - 0.1 0.02 76 80 54 - - - - - % % dB dB dB VP = 8.5 V VP = 15 V QL = 20; VP = 8.5 V QL = 20; VP = 15 V Z3, 7 = 10 pF parallel to 1 M - - - - - - - - - - 60 120 22 8 35 680 250 30 1 3.7 5.5 9.8 67 135 30 - - - - - - - - - 75 150 V V V mV k pF k V V mV mV 10 12 16 18 23 25 mA mA PARAMETER CONDITIONS MIN. TYP. MAX. UNIT ViIF 100 V 8 - 9 ---------------f o IF input voltage hum suppression at f = 100 Hz AFC tuning slope at QL = 20 - 48 8.5 17 500 - - - mV dB mV/kHz mV/kHz 1998 Nov 18 6 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576 SYMBOL V8-9 PARAMETER AFC offset voltages at QL = 20 CONDITIONS Vi = 1 mV; VP = 8.5 V Vi = 1 mV; VP = 15 V Vi = 30 V to 500 mV (Vref = 1 mV and muting); VP = 8.5 V Vi = 30 V to 500 mV (Vref = 1 mV and muting); VP = 15 V - - - MIN. - - TYP. MAX. 100 200 50 UNIT mV mV mV 25 - 50 100 mV Field strength output; see Fig.7 Vi V13 indicator sensitivity output voltage I14 = 0 R13 = 3.6 k; I14 = 0 ViIF = 0 ViIF = 250 mV (RMS) I13 V13 available output current reverse voltage at output for FM off V5 > 3.5 V - 3.2 -2 5 - 1.8 0.35 V11/(V10-9) at I11 = 0.25 mA; VP = 15 V V11 = 2.5 V I12 = -1 mA; VP = 8.5 V I12 = -1 mA; VP = 15 V I12 V5 I5 Note 1. Simultaneously measured. available output current Standby switch input voltage for FM on input voltage for FM off input current for FM on - 3.5 - - - - 2 - -100 V V A - - - - - 0 3.6 - - 200 4.1 - - mV V mA V 0.02 - 600 mV Detuning detector I10 V11 I11 Gv V10-9 Vref quiescent input current output voltage maximum output current voltage gain input offset voltage (pin 10) V10-9 = 0 20 - 0.5 3.3 20 100 5.0 0.65 - - - - - mV nA V mA Reference voltage reference voltage (pin 12) 5.1 5.3 -2.5 V V mA 1998 Nov 18 7 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576 handbook, halfpage 30 MGE459 handbook, halfpage 150 MGE460 IP (mA) 20 Vo (mV) 100 QL = 30 20 typ 10 10 50 0 0 0 10 VP (V) 20 0 10 VP (V) 20 Fig.4 Fig.3 Supply current consumption as a function of VP without load. AF output voltage as a function of VP; ViIF = 1 mV; f = 15 kHz; fm = 400 Hz; typical values. handbook, halfpage 1.5 MGE461 QL = 30 THD (%) 1 20 0.5 10 0 0 50 f (kHz) 100 Fig.5 Total harmonic distortion for single tuned circuit; ViIF = 1 mV; fm = 400 Hz; adjusted at minimum 2nd distortion; typical values. 1998 Nov 18 8 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576 handbook, full pagewidth 40 MGE462 Vo (dB) 20 f = 75 kHz 40 kHz 0 S+N 15 kHz -20 -40 -60 N -80 1 10 102 103 104 105 106 Vi (V) Fig.6 AF output voltage level as a function of IF input voltage; VP = 15 V; fm = 400 Hz; B = 250 Hz to 16 kHz; QL = 20; C8-9 = 6.8 nF. handbook, full pagewidth 4 MGE463 V13 (V) 3 V14 = 0 V I14 = 0 V 2 V 14 =1 V V 14 1 =2 V V 14 =3 V 0 1 10 102 103 104 105 Vi (V) 106 Fig.7 Voltage at field strength indicator output (proportional to V12); R13 = 3.6 k. 1998 Nov 18 9 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576 handbook, halfpage 20 Vo (dB) MGE464 handbook, halfpage 20 MGE465 Vo (dB) FM on 0 0 -20 -20 -40 -40 -60 -60 FM off -80 0 0.2 0.4 0.6 0.8 1.0 V11 (V) -80 0 1 2 3 V5 (V) 4 Fig.9 Fig.8 Attenuation of output voltage (Vo) as a function of the muting control voltage V11. FM on/FM off standby switch; attenuation of output voltage (Vo) as a function of control voltage V5. handbook, full pagewidth 6 MGE466 V11 (V) 5 R8-10 = 0 4 R8-10 = 240 k R9-10 = 180 k 3 (1) 2 1 0 -300 -200 -100 0 +100 +200 f (kHz) +300 (1) Limited by external preset ( x V12-18). Fig.10 Detuning detector output voltage; VP = 7.5 to 20 V; QL = 20. 1998 Nov 18 10 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576 handbook, full pagewidth 33 pF 3 (1) 39 pF 560 pF (1) 4 TDA1576 6 39 pF 7 9 8 33 pF MGE457 560 pF L1 1 k L2 390 C8-9 VoAF Adjustment of the demodulator circuit is obtained with an IF signal which is higher than the 3 dB limiting level; L2 should be short-circuited or detuned; L1 should be adjusted to minimum d2 distortion, and then L2 to minimum d2 distortion. (1) Coil data: L1 = L2 = 0.38 H; Qo = 70; coil former KAN (C). Fig.11 An example of the TDA1576 when using a demodulator with two tuned circuits. handbook, full pagewidth 0.3 MGE467 THD (%) 0.2 0.1 -75 -50 -25 0 (fo = 10.7 MHz) +25 +50 f (kHz) +75 Fig.12 Total harmonic distortion as a function of detuning; fm = 400 Hz; C8-9 = 6.8 nF; f = 75 kHz; Vo = 330 mV for a frequency deviation f = 75 kHz. 1998 Nov 18 11 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit APPLICATION INFORMATION TDA1576 handbook, full pagewidth FM/IF input Vi (RS) 1 mA A VF R5 4.7 k R6 220 k Vref detune voltage C3 0.1 F C4 0.1 F C8 C6 1 nF 0.1 F R3 3.6 k RS R4 10 k C10 0.47 F 18 17 16 15 14 13 12 11 10 R9 180 k TDA1576 1 VP C1 0.1 F R1 10 C2 47 F C5 33 pF C7 560 pF R2 750 L 0.38 H + C9 33 pF R7 3.3 k R8 3.3 k C11(1) 2 3 4 5 6 7 8 9 R10 240 k C12 FM on AFC voltage VoAF MGE458 (1) For mono C11 = 6.8 nF; for stereo C11 = 56 pF. Fig.13 Application diagram. 1998 Nov 18 12 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit PACKAGE OUTLINE DIP18: plastic dual in-line package; 18 leads (300 mil) TDA1576 SOT102-1 D seating plane ME A2 A L A1 c Z e b1 b 18 10 b2 MH wM (e 1) pin 1 index E 1 9 0 5 scale 10 mm DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.044 b1 0.53 0.38 0.021 0.015 b2 1.40 1.14 0.055 0.044 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 0.85 0.033 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT102-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE 93-10-14 95-01-23 1998 Nov 18 13 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit SOLDERING Introduction to soldering through-hole mount packages This text gives a brief insight to wave, dip and manual soldering. 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). Wave soldering is the preferred method for mounting of through-hole mount IC packages on a printed-circuit board. Soldering by dipping or by solder wave The maximum permissible temperature of the solder is 260 C; solder at this temperature must not be in contact with the joints for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. Suitability of through-hole mount IC packages for dipping and wave soldering methods SOLDERING METHOD PACKAGE DIPPING DBS, DIP, HDIP, SDIP, SIL Note suitable suitable(1) TDA1576 The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg(max)). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. Manual soldering Apply the soldering iron (24 V or less) to the lead(s) of the package, either below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds. WAVE 1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. 1998 Nov 18 14 Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values TDA1576 This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. 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 specification 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 specification. 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. 1998 Nov 18 15 Philips Semiconductors - a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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No. 5, 80640 GULTEPE/ISTANBUL, Tel. +90 212 279 2770, Fax. +90 212 282 6707 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. +44 181 730 5000, Fax. +44 181 754 8421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. +381 11 625 344, Fax.+381 11 635 777 Internet: http://www.semiconductors.philips.com 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 (c) Philips Electronics N.V. 1998 SCA60 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. 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 convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands 545102/750/02/pp16 Date of release: 1998 Nov 18 Document order number: 9397 750 04822 |
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