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TDA8761A
Information as of 2000-08-19
TDA8761A; 9-bit analog-to-digital converter for digital video
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.
All digital inputs and outputs are TTL and CMOS compatible, although a low-level sine wave clock input signal is allowed.
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9-bit resolution
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Sampling rate up to 40 MHz
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DC sampling allowed
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One clock cycle conversion only
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High signal-to-noise ratio over a large analog input frequency range (8.2 effective bits at 10 MHz full-scale input at f
clk = 30 MHz)
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No missing codes guaranteed
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In Range (IR) CMOS output
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Levels TTL and CMOS compatible digital inputs
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3 to 5 V CMOS digital outputs
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Low-level AC clock input signal allowed
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External reference voltage regulator
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Power dissipation only 158 mW (typical)
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Low analog input capacitanceno buffer amplifier required
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No sample-and-hold circuit required.
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