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TDF8771AH

Triple 8-bit video Digital-to-Analog Converter (DAC)

Philips Electronics 

Philips Semiconductors

Triple 8-bit video Digital-to-Analog

Converter (DAC)

Product specification

TDF8771A

FEATURES

• 8-bit resolution

• Sampling rate up to 35 MHz

• Internal reference voltage regulator

• No deglitching circuit required

• Large output voltage range

• 1 kΩ output load

• Power dissipation only 200 mW

• Single 5 V power supply

• 44-pin QFP package

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

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.

APPLICATIONS

• General purpose high-speed digital-to-analog

conversion

• Digital TV

• Graphic display

• Desktop video processing.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX. UNIT

VDDA

VDDD

IDDA

IDDD

Tamb

INL

DNL

fclk(max)

Ptot

analog supply voltage

digital supply voltage

analog supply current

digital supply current

RL = 1 kΩ; note 1

fclk = 35 MHz

operating ambient

temperature

integral non-linearity

differential non-linearity

maximum clock frequency

fclk = 35 MHz; ramp input

fclk = 35 MHz; ramp input

total power dissipation

RL = 1 kΩ; fclk = 35 MHz; note 1

4.5 5.0

4.5 5.0

10

30

−

3

−40 −

5.5 V

5.5 V

45

mA

10

mA

+85 °C

−

±0.3 ±1

LSB

−

±0.15 ±0.5 LSB

35

−

−

MHz

45

200 360 mW

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

TYPE

NUMBER

TDF8771AH

NAME

QFP44

PACKAGE

DESCRIPTION

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

body 10 × 10 × 1.75 mm

VERSION

SOT307-2

2003 Apr 29

2

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