TDA4470 TEMIC Semiconductors, TDA4470 Datasheet
TDA4470
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TDA4470 Summary of contents
Page 1
... Multistandard Video-IF and Quasi Parallel Sound Processing Description The TDA4470 is an integrated bipolar circuit for multi- standard video/sound IF (VIF/SIF) signal processing in TV/VCR and multimedia applications. The circuit processes all TV video IF signals with negative Features supply voltage; low power consumption D Active carrier generation by FPLL principle ...
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... TDA4470-M Block Diagram Offset Loop filter comp. (optional) 26 Ï FPLL VIF amp 6 Ï Ï Ï VIF 7 C AGC 8 Ï AGC Ï Ï 15 (VIF Tuner 11 Ï Tuner Ï Ï 10 AGC Ï Take over point 27 Ï Ï Ï SIF 2 28 SIF amp SIF input ...
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... Without a potentiometer (open circuit at Pin 26), this offset compensation is not active. TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4470-M The oscillator signal passes a phase shifter and supplies the in-phase signal (0 ) and the quadrature signal (90 )of the generated picture carrier. Video Demodulation and Amplifier ...
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... TDA4470-M Standard Switch To have equal polarity of the video output signal the polarity can be switched in the demodulation stage in accordance with the TV standard. Additional a standard dependent dc level shift in the video amplifier delivers the same sync. level. In parallel to this, the correct VIF-AGC is selected for positive or negative modulated VIF signals. ...
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... comp 27 SIF2 Ref BL TDA4470-M Function SIF1 input (symmetrical) Input selector switch Ground SIF-AGC (time constant) VIF input (symmetrical) VIF-AGC (time constant) Take over point, tuner AGC Tuner AGC output current Video output Standard switch L’ switch Black level capacitor Internal reference voltage ...
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... TDA4470-M Absolute Maximum Ratings Reference point Pin 4 (9, 16), unless otherwise specified Parameters Supply voltage Pin 23 SDIP28 package SO28 package Supply current Pin 23 Power dissipation SDIP28 package SO28 package Output currents Pins 12, 24 and 25 External voltages Pins 10, 12, 14, 17, 18 and Pins 15, 20 and 21 ...
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... G tun 4 top 0 top Pins 18, 20, 21 and 26 f vco = 38.9 MHz, f cap = 8 8.2 pF, = 38.9 MHz Pin out vid v o,vid V sync = TDA4470-M Typ. Max. Unit 4.5 5.0 9.0 V 4.5 5.0 5 120 V RMS W 1 2.2 F 100 nF 4 0.3 13 see note 4 70 MHz 1.5 2 MHz – ...
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... TDA4470-M Parameters Test Conditions / Pins Video frequency response over the AGC range Differential gain error Differential phase error Intermodulation See note 6 1.07 MHz Video signal to noise ratio Weighted, CCIR-567 Residual vision carrier fundamental wave 38.9 MHz and second harmonic 77.8 MHz ...
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... S kHz, RR Pin 8.2 – VCO 60 for an oscillator voltage 100 (1.07) value related to black-white signal = 33.4 MHz 33.16 MHz kHz 54%; v mod TDA4470-M Typ. Max. Unit W 150 250 350 mV RMS 60/58 dB 54/52 dB 60/ 2 150 500 630 mV ...
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... TDA4470-M Intercarrier AF (FM/NICAM) SIF 2 (AM) Loop comp AGC (SIF) SIF Input switch SIF external L/C circuit (VCO 38.9 MHz) with TOKO coil 7KM, 292 XNS – 4051Z 10 (16) Preliminary Information AFC AFC switch + 150 L VCO 8 VCO 470 2.2 F AGC (VIF) VIF ...
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... External L/C circuit (VCO: 38.9 MHz) with TOKO coil 7KM, 292 XNS – 4051Z TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information Figure 4. Basic application circuit TDA4470-M 11 (16) ...
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... TDA4470-M Internal Pin Configuration 8521 Figure 5. Sound IF inputs (Pin 1-2, 27-28) 3 8522 Figure 6. Input selector switch (Pin 3) 5 Figure 7. SIF-AGC time constant (Pin 5) 12 (16) Preliminary Information 4.2 V Figure 8. Video IF input (Pin 6-7) 8 Figure 9. VIF-AGC time constant (Pin 8) 94 8523 94 8526 Figure 10. Tuner AGC – take over point (Pin 10) ...
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... Figure 11. Tuner AGC – output (Pin 11) 2 8528 Figure 12. Video output (Pin 12 8529 Figure 13. Standard switch (Pin 13) TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4470-M 2 8530 Figure 14. Black level capacitor (Pin 15) 3 8531 Figure 15. Internal reference voltage (Pin 17) 2.75 V Figure 16. Loop filter (Pin 18) 94 8532 13 (16) ...
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... TDA4470 8533 Figure 17. AFC switch (Pin 19 8534 Figure 18. VCO (Pin 20-21) 94 8535 Figure 19. AFC output (Pin 22) 14 (16) Preliminary Information 100 8536 Figure 20. Intercarrier output (Pin 24 100 1.4 mA Figure 21. AF output AM sound (Pin 25) 94 8538 Figure 22. VCO offset compensation (Pin 26) ...
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... Dimensions in mm Package: SDIP28 Package: SO28 TELEFUNKEN Semiconductors Rev. A2, 15-Oct-96 Preliminary Information TDA4470-M 95 10610 95 10610 95 9932 15 (16) ...
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... TDA4470-M Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment ...