6-3. TDA8374A( Single chip TV Processor for Negative modulation IF )
1. General Description
The TDA8374A is IIC BUS controlled single chip TV processors which are intended to be
applied in PAL/NTSC television receiver.
TDA8374N3 : W ith positive and negative m odulation
Applied in PAL/SECAM/NTSC TV.
2. Feature
? IF
- Vision IF amplifier with high sensitivity and good figures for differential phase and again.
- PLL demodulator with high linearity offering the possibility for (single standard) intercarrier stereo audio application.
- Alignment PLL via IIC
? VIDEO
- Integrated luminance delay line
- Integrated chroma trap and bandpass filters (auto calibrated)
- Asym metrical peaking circuit in the luminance channel.
- Black stretching of non standard CVBS or luminance signals.
? COLOUR
- SECAM interface for application with SECAM add-on TDA8395.
? RGB
- RGB control (brightness,contrast,saturation.
- Black current stabilization and white point adjustm ent.
? INPUT/OUTPUT
- Flexible video source select with CVBS input for the internal signal and two external video inputs
(one switchable for CVBS or Y/C)
- The output signal of the video source select is externally available(also as CVBS when Y/C input is used.)
- External audio input
- Linear RGB input with fast blanking.
? SYNCHRONIZATION AND DEFLECTION
- Horizontal synchronization with two control loops and alignment free horizontal oscillator.
- Slow start and slow stop of the horizontal drive output to enable low stress start-up and
switch-off from the line circuit at nom inal line supply voltage.
- Vertical count down circuit for stable behavior with provisions for non standard signals.
- Vertical geometry control
- Vertical drive optim ized for DC coupled vertical output stages.
? CONTROL
- Full IIC BUS control, as well for customer controls as for factory alignm ent.
- All automatic controls have an option for forced mode.
? PO W ER CONSUMPTION
- Low power consum ption (900mW at 8.0Volts).
? PACKAGING
- SDIL-56 ( Shrinked Dual In Line, 56pins )
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ACEC
DAEWOO
