TDA8709AT datasheet(2/28 Pages) PHILIPS

2 / 28 page

June 1994

Philips Semiconductors

Product speciﬁcation

Video analog input interface

TDA8709A

FEATURES

• 8-bit resolution

• Sampling rate up to 32 MHz

• TTL-compatible digital inputs and outputs

• Internal reference voltage regulator

• Low-level AC clock inputs and outputs

• Clamp function with selection for ‘16’ or ‘128’

• No sample-and-hold circuit required

• Three selectable video inputs.

APPLICATIONS

• Video signal processing

• Digital picture processing

• Frame grabbing.

• Colour difference signals (U, V)

• R, G, B signals

• Chrominance signal (C).

GENERAL DESCRIPTION

The TDA8709A is an analog input interface for video signal

processing. It includes a an input selector

(one out-of-three video signals), video amplifier with clamp

and external gain control, an 8-bit analog-to-digital

converter (ADC) with a sampling rate of 32 MHz and an

input selector.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

MIN.

TYP.

MAX.

UNIT

VCCA

analog supply voltage

4.5

5.0

5.5

VCCD

digital supply voltage

4.5

5.0

5.5

VCCO

TTL output supply voltage

4.2

5.0

5.5

ICCA

analog supply current

−

ICCD

digital supply current

−

ICCO

TTL output supply current

−

ILE

DC integral linearity error

−−±1

LSB

DLE

DC differential linearity error

−−±0.5

LSB

fclk(max)

maximum clock frequency

−

MHz

maximum

−3 dB bandwidth (preampliﬁer)

−

MHz

Ptot

total power dissipation

−

380

512

TYPE NUMBER

PACKAGE

PINS

PIN POSITION

MATERIAL

CODE

TDA8709A

DIP

plastic

SOT117-1

TDA8709AT

SO28L

plastic

SOT136-1

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