TDA8787A Просмотр технического описания (PDF) - Philips Electronics

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TDA8787A

10-bit, 3.0 V, up to 25 Msps analog-to-digital interface for CCD cameras

Philips Electronics 

Philips Semiconductors

10-bit, 3.0 V, up to 25 Msps analog-to-digital

interface for CCD cameras

Product specification

TDA8787A

FEATURES

• Correlated Double Sampling (CDS), Programmable

Gain Amplifier (PGA), 10-bit Analog-to-Digital Converter

(ADC) and reference regulator included

• Fully programmable via a 3-wire serial interface

• Sampling frequency up to 25 MHz;

(TDA8787AHL = 18 MHz; TDA8787AHL/S1 = 25 MHz)

• PGA gain range of 36 dB (in steps of 0.1 dB)

• Low power consumption of only 170 mW at 2.7 V

• Power consumption in standby mode of 4.5 mW

(typical value)

• 3.0 V operation; 2.5 to 3.6 V operation for the digital

outputs

• Active control pulses polarity selectable via serial

interface

• 8-bit DAC included for analog settings

• TTL compatible inputs, CMOS compatible outputs.

APPLICATIONS

• Low-power, low-voltage CCD camera systems.

GENERAL DESCRIPTION

The TDA8787A is a 10-bit analog-to-digital interface for

CCD cameras. The device includes a correlated double

sampling circuit, a PGA, clamp loops and a low-power

10-bit ADC, together with its reference voltage regulator.

The PGA gain and the ADC input clamp level are

controlled via the serial interface.

An additional DAC is provided for additional system

controls. Its output voltage range is 1.0 V peak-to-peak

which is available at pin OFDOUT.

ORDERING INFORMATION

TYPE NUMBER

TDA8787AHL

TDA8787AHL/S1

NAME

LQFP48

LQFP48

PACKAGE

DESCRIPTION

plastic low profile quad flat package; 48 leads;

body 7 × 7 × 1.4 mm

VERSION

SOT313-2

SOT313-2

PIXEL

FREQUENCY

18 MHz

25 MHz

2000 Nov 14

2

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