TDA9952 Ver la hoja de datos (PDF) - Philips Electronics

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TDA9952

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

Philips Electronics 

Philips Semiconductors

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

interface for CCD cameras

Preliminary specification

TDA9952

FEATURES

• Sample rate = 25 Msps;10-bit resolution

• Single 3.0 V supply operation (2.2 to 3.6 V operation for

the digital outputs)

• Low power consumption: only 115 mW at 2.7 V

• Power consumption in standby mode: 4.5 mW

(typical value)

• Programmable gain amplifier:

gain range = 36 dB in 0.1 dB steps

• Correlated double sampling

• Internal input buffer for the correlated double sampling

• Fully programmable via a 3-wire serial interface

• 8-bit DAC included for external analog settings

• TTL-compatible inputs and CMOS-compatible outputs.

GENERAL DESCRIPTION

The TDA9952 is a 10-bit analog-to-digital interface for

CCD cameras. The device consists of a Correlated Double

Sampling (CDS) circuit, a digitally Programmable Gain

Amplifier (PGA), a black level clamp and a 10-bit

Analog-to-Digital Converter (ADC).

An internal CDS input buffer is incorporated in order to

avoid using an external buffer that would consume more

power and therefore optimizing the application for low

noise, low power working.

The PGA gain, the ADC clamp level and other settings are

controlled via a 3-wire serial digital interface.

An additional DAC is provided for system controls.

The TDA9952 operates from a single 3 V power supply

(2.7 V minimum) and dissipates 135 mW (typical value).

APPLICATIONS

• Video camcorders

• Digital still cameras

• PC-cameras.

ORDERING INFORMATION

TYPE NUMBER

TDA9952HL

NAME

LQFP48

TDA9952HN

HVQFN48

PACKAGES

DESCRIPTION

plastic low profile quad flat package; 48 leads;

body 7 × 7 × 1.4 mm

plastic, heatsink very thin quad flat package; no leads;

48 terminals; body 7 × 7 × 0.85 mm

VERSION

SOT313-2

SOT619-1

2002 Aug 21

2

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