2003 Apr 29

2

Philips Semiconductors

Product specification

Triple 8-bit video Digital-to-Analog

Converter (DAC)

TDF8771A

FEATURES

• 8-bit resolution

• Sampling rate up to 35 MHz

• Internal reference voltage regulator

• No deglitching circuit required

• Large output voltage range

• 1kΩ output load

• Power dissipation only 200 mW

• Single 5 V power supply

• 44-pin QFP package

• Operating ambient temperature from −40 to +85 °C.

APPLICATIONS

• General purpose high-speed digital-to-analog

conversion

• Digital TV

• Graphic display

• Desktop video processing.

GENERAL DESCRIPTION

The TDF8771A is a triple 8-bit video Digital-to-Analog

Converter (DAC). It converts the digital input signals into

analog voltage outputs at a maximum conversion rate of

35 MHz.

The DACs are based on resistor-string architecture with

integrated output buffers. The output voltage range is

determined by a built-in reference source.

The device is fabricated in a 5 V, CMOS process that

ensures high functionality with low power dissipation.

QUICK REFERENCE DATA

Note

1. Minimum and maximum data of current and power consumption are measured in worse case conditions: for

minimum data, all digital inputs are at logic level 0 while for maximum data, all digital inputs are at logic level 1.

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

analog supply voltage

4.5

5.0

5.5

V

digital supply voltage

4.5

5.0

5.5

V

analog supply current

10

30

45

mA

digital supply current

−

310

mA

operating ambient

temperature

−40

−

+85

°C

INL

integral non-linearity

−±0.3

±1

LSB

DNL

differential non-linearity

−±0.15 ±0.5

LSB

maximum clock frequency

35

−−

MHz

total power dissipation

45

200

360

mW

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDF8771AH

QFP44

plastic quad flat package; 44 leads (lead length 1.3 mm);

body 10

× 10 × 1.75 mm

SOT307-2