d a t a sh eet product speci?cation file under integrated circuits, ic02 april 1985 integrated circuits tda2549 i.f. amplifier and demodulator for multistandard tv receivers
april 1985 2 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 general description the tda2549 is a complete i.f. circuit with a.f.c., a.g.c., demodulation and video preamplification facilities for multistandard television receivers. it is capable of handling positively and negatively modulated video signals in both colour and black/white receivers. features gain-controlled wide-band amplifier providing complete i.f. gain synchronous demodulator for positive and negative modulation video preamplifier with noise protection for negative modulation auxiliary video input and output (75 w ) video switch to select between auxiliary video input signal and demodulated video signal a.f.c. circuit with on/off switch and inverter switch a.g.c. circuit for positive modulation (mean level) and negative modulation (noise gate) a.g.c. output for controlling mosfet tuners quick reference data package outline 24-lead dil; plastic (sot101a); sot101-1; 1996 november 19. supply voltage (pins 13 and 21) v p =v 13;21-3 typ. 12 v supply current (pins 13 and 21) i p =i 13;21-3 typ. 82 ma i.f. input signal at v o =2 v (between pins 6 and 7) v i =v 6-7 typ. 50 m v video output voltage at v i =0 v (between pins 22 and 3) positive modulation v o =v 22-3 typ. 2 v negative modulation v o =v 22-3 typ. 4 v gain control range g v typ. 74 db signal-to-noise ratio at v i = 10 mv s/n typ. 57 db a.f.c. output voltage swing (pin 15) v 15-3 min. 10 v max. tuner a.g.c. output current (pin 10) i 10 min. 0,3 ma video bandwidth (3 db) b typ. 5,5 mhz auxiliary video input voltage (pin 12) at v o = 2 v (peak-to-peak value) v 12-3(p-p) typ. 1 v auxiliary video output impedance (pin 14) |z 14-3 | typ. 7 w auxiliary video output voltage (pin 14) v 14-3 typ. 2 v
april 1985 3 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 fig.1 block diagram.
april 1985 4 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 ratings limiting values in accordance with the absolute maximum system (iec 134) characteristics (measured in ?g.5) v p = 12 v; t amb =25 c supply voltage (pins 13 and 21) v p 13,8 v storage temperature range t stg - 25 to + 125 c operating ambient temperature range t amb - 25 to + 70 c parameter symbol min. typ. max. unit supply voltage range v p 10,8 12 13,2 v supply current (pins 13 and 21) i p - 82 - ma i.f. input signal for v o =2 v (between pins 6 and 7) v i =v 6-7 - 50 150 m v input impedance (differential) |z 6-7 | - 2 - k w input capacitance (differential) c 6-7 - 2 - pf zero single output level positive modulation v 22-3 1,6 2 2,3 v negative modulation v 22-3 3,7 4 4,3 v top sync output level v 22-3 1,7 2 2,3 v gain control range g v 50 74 - db signal-to-noise ratio at v i = 10 mv (note 1) s/n 50 57 - db maximum video output amplitude for positive modulation (peak-to-peak value) v 22-3(p-p) 4,5 -- v bandwidth of video ampli?er (3 db) b - 5,5 - mhz differential gain at v o =2v dg - 410% differential phase at v o =2 v d j- 210% residual carrier signal (r.m.s. value) v 24-3(rms) - 10 20 mv residual second harmonic of carrier signal (r.m.s. value) v 24-3(rms) - 20 60 mv
april 1985 5 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 notes to the characteristics 1. 2. measured in application of fig. 5. a.f.c. output voltage swing v 15-3 10 -- v change of frequency required for a.f.c. output voltage swing of 10 v d f - 70 200 khz a.f.c. switch off for a voltage lower than: v 17-3 -- 1,5 v a.f.c. inverter switch positive a.f.c. (fig.2) v 16-3 0 - 1,5 v negative a.f.c. (fig.3) v 16-3 4 - 12 v tuner a.g.c. leakage current i 10 -- 15 m a saturation voltage i 10 = 0,3 ma v 10-3 - 0,1 0,3 v take-over point low v i -- 3mv take-over point high v i 10 -- mv signal expansion at g v = 50 db d v 22-3 -- 0,5 db negative modulation (fig.4) white spot inverter threshold level v 22-3 - 4,6 - v white spot insertion level v 22-3 - 3,2 - v noise inverter threshold level v 22-3 - 0,9 - v noise insertion level v 22-3 - 2,5 - v positive modulation a.g.c. detector reference level v 11-3 3,0 3,2 3,4 v auxiliary video input signal for v o(p-p) =2 v v 12-3 0,7 1 1,4 v auxiliary video output output signal (note 2) v 14-3 - 1 - v top sync level v 14-3 123v output impedance |z 14-3 | - 7 -w levels for video switches positive video v 2-3 -- 1v negative video v 2-3 3 -- v internally demodulated signal v 23-3 -- 1v auxiliary video signal v 23-3 3 -- v parameter symbol min. typ. max. unit signal to C noise ratio s/n C v o black-to-white v n rms () at b 5 mhz = ----------------------------------------------------------- =
april 1985 6 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 fig.2 a.f.c. output voltage v 15-3 for positive a.f.c. fig.3 a.f.c. output voltage v 15-3 for negative a.f.c. fig.4 video output waveform showing white spot and noise inverter threshold levels.
april 1985 7 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 application information fig.5 application diagram.
april 1985 8 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 package outline unit a max. 1 2 b 1 cd e e m h l references outline version european projection issue date iec jedec eiaj mm inches dimensions (inch dimensions are derived from the original mm dimensions) sot101-1 92-11-17 95-01-23 a min. a max. b w m e e 1 1.7 1.3 0.53 0.38 0.32 0.23 32.0 31.4 14.1 13.7 3.9 3.4 0.25 2.54 15.24 15.80 15.24 17.15 15.90 2.2 5.1 0.51 4.0 0.066 0.051 0.021 0.015 0.013 0.009 1.26 1.24 0.56 0.54 0.15 0.13 0.01 0.10 0.60 0.62 0.60 0.68 0.63 0.087 0.20 0.020 0.16 051g02 mo-015ad m h c (e ) 1 m e a l seating plane a 1 w m b 1 e d a 2 z 24 1 13 12 b e pin 1 index 0 5 10 mm scale note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. z max. (1) (1) (1) dip24: plastic dual in-line package; 24 leads (600 mil) sot101-1
april 1985 9 philips semiconductors product speci?cation i.f. ampli?er and demodulator for multistandard tv receivers tda2549 soldering introduction there is no soldering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. however, wave soldering is not always suitable for surface mounted ics, or for printed-circuits with high population densities. in these situations reflow soldering is often used. this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our ic package databook (order code 9398 652 90011). soldering by dipping or by wave the maximum permissible temperature of the solder is 260 c; solder at this temperature must not be in contact with the joint for more than 5 seconds. the total contact time of successive solder waves must not exceed 5 seconds. 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 (t stg 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. repairing soldered joints apply a low voltage soldering iron (less than 24 v) to the lead(s) of the package, 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. 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. 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.
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