描述 Description

GENERAL DESCRIPTION
The TDA8708B is an analog input interface for video signal processing. It includes a video amplifier with clamp and gain control, an 8-bit Analog-to-Digital Converter (ADC) with a sampling rate of 32 MHz and an input selector.FEATURES
? 8-bit resolution
? Sampling rate up to 32 MHz
? Binary or two’s complement 3-state TTL outputs
? TTL-compatible digital inputs and outputs
? Internal reference voltage regulator
? Power dissipation of 365 mW (typical)
? Input selector circuit (one out of three video inputs)
? Clamp and Automatic Gain Control (AGC) functions for CVBS and Y signals
? No sample-and-hold circuit required
? The TDA8708B has no white peak control in mode 2 ?whereas the TDA8708A has control in modes 1 and 2
? In-range output (not TTL levels).APPLICATIONS
? Video signal decoding
? Scrambled TV (encoding and decoding)
? Digital picture processing
? Frame grabbing.

特性 Features

? 8-bit resolution
? Sampling rate up to 32 MHz
? Binary or two’s complement 3-state TTL outputs
? TTL-compatible digital inputs and outputs
? Internal reference voltage regulator
? Power dissipation of 365 mW (typical)
? Input selector circuit (one out of three video inputs)
? Clamp and Automatic Gain Control (AGC) functions for CVBS and Y signals
? No sample-and-hold circuit required
? The TDA8708B has no white peak control in mode 2 ?whereas the TDA8708A has control in modes 1 and 2
? In-range output (not TTL levels).