GENERAL DESCRIPTION
The TDA8761A is a 9-bit Analog-to-Digital Converter (ADC) for professional video and digital video set box applications. It converts the analog input signal into 9-bit binary-coded digital words at a maximum sampling rate of 40 MHz. Its linearity performance ensures the required conversion accuracy in the event of 256-QAM demodulator concept and for all symbol frequencies.

FEATURES
• 9-bit resolution
• Sampling rate up to 40 MHz
• DC sampling allowed
• One clock cycle conversion only
• High signal-to-noise ratio over a large analog input frequency range (8.2 effective bits at 10 MHz full-scale input at fclk = 30 MHz)
• No missing codes guaranteed
• In Range (IR) CMOS output
• Levels TTL and CMOS compatible digital inputs
• 3 to 5 V CMOS digital outputs
• Low-level AC clock input signal allowed
• External reference voltage regulator
• Power dissipation only 158 mW (typical)
• Low analog input capacitance, no buffer amplifier required
• No sample-and-hold circuit required.

APPLICATIONS
Analog-to-digital conversion for:
• Video data digitizing
• Digital Video Broadcasting (DVB)
• Cable TV.