GENERAL DESCRIPTION
The TDA8761 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 30 MHz. Its linearity performance ensures the required conversion accuracy in case of 256QAM demodulator concept and for all symbol frequencies. All digital inputs and outputs are TTL compatible, although a low-level sine wave clock input signal is allowed.

FEATURES
• 9-bit resolution
• Sampling rate up to 30 MHz
• DC sampling allowed
• One clock cycle conversion only
• High signal-to-noise ratio over a large analog input frequency range (8.5 effective bits at 10 MHz full-scale input at fclk = 30 MHz)
• No missing codes guaranteed
• In range (IR) 3-state TTL output
• TTL compatible digital inputs and outputs
• Low-level AC clock input signal allowed
• External reference voltage regulator
• Power dissipation only 360 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.