Philips Triple high-speed Analog-to-Digital Converter 110 Msps TDA8752B Specification

1. General description

2. Features

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TDA8752B
Triple high-speed Analog-to-Digital Converter 110 Msps
Rev. 03 — 21 July 2000
The TDA8752B is a triple 8-bit ADC with controllable amplifiers and clamps for the
digitizing of large bandwidth RGB signals.
The clamp level, the gain and all other settings are controlled via a serial interface
2
(either I C-bus or 3-wire serial bus, selected via a logic input).
The IC also includes a PLL that can be locked to the horizontal line frequency and
generates the ADC clock. The PLL jitter is minimized for high resolution PC graphics
applications. An external clock can also be input to the ADC.
It is possible to set the TDA8752B serial bus address to four different values, when
several TDA8752B ICs are used in a system, by means of the I
example, two ICs used in an odd/even configuration).
Triple 8-bit ADC
Sampling rate up to 110 Msps
IC controllable via a serial interface, which can be either I
bus, selected via a TTL input pin
IC analog voltage input from 0.4 to 1.2 V (p-p) to produce a full-scale ADC input of
1 V (p-p)
Three clamps for programming a clamping code between 63.5 and +64 in steps
1
of LSB for RGB signals, and from +120 to +136 in steps of
2
signals
Three controllable amplifiers: gain controlled via the serial interface to produce a
full-scale resolution of
Amplifier bandwidth of 250 MHz
Low gain variation with temperature
PLL controllable via the serial interface to generate the ADC clock which can be
locked to a line frequency of 15 to 280 kHz
Integrated PLL divider
Programmable phase clock adjustment cells
Internal voltage regulators
TTL compatible digital inputs and outputs
Chip enable high-impedance ADC output
1
LSB peak-to-peak
2
Product specification
2
C-bus interface (for
2
C-bus or 3-wire serial
1
LSB for YUV
2