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TDA8374A (Single chip TV Processor for Negative modulation IF ) TDA8374 (Single chip TV Processor for Negative & positive modulation IF)

(1)General Description

The TDA8374(A) is I2C-bus controlled single chip TV processors which are intended to be applied in PAL/NTSC television receiver.

The IC is mounted in a S-DIL 56 envelope.

(2)Feature

•IF

-Vision IF amplifier with high sensitivity and good figures for differential phase and gain

-PLL demodulator with high linearity offering the possibility for (single standard) intercarrier stereo audio application .

-Alignment PLL via I2C

-[TDA8374] Multistandard IF with negative and positive modulation, switchable via I2C

•AUDIO

-Alignment free multi standard PLL audio demodulator (4.5 to 6.5 MHz.)

-Mono volume control

•Video

-Integrated luminance delay line

-Integrated chroma trap and bandpass filters (auto calibrated)

-Asymmetrical 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 adjustment

•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 nominal line supply voltage.

-Vertical count-down circuit for stable behavior with provisions for non-standard signals.

-Vertical geometry control.

-Vertical drive optimized for DC coupled vertical output stages.

•Control

-Full I2C bus control, as well for customer controls as for factory alignment.

-All automatic controls have an option for forced mode.

•Power consumption

-Low power consumption (900 mW at 8.0 Volts).

•Packaging

-SDIL-56 (Shrinked Dual In Line, 56 pins).

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