TDA8772 Datasheet, PDF (2/20 Pages) NXP Semiconductors – Triple 8-bit video digital-to-analog converter

Philips Semiconductors
Triple 8-bit video digital-to-analog
converter
Product specification
TDA8772
FEATURES
• 8-bit resolution
• Sampling rate up to:
– 35 MHz for TDA8772H/3
– 85 MHz for TDA8772H/8
• Internal reference voltage regulator
• No deglitching circuit required
• SYNC, BLANK control inputs
• 3 independent clock inputs (one per DAC)
• 1 V output voltage range
• 75 Ω output load
• TDA8772 has BLANK control on the 3 channels
• Single 5 V power supply
• 44-pin QFP package.
GENERAL DESCRIPTION
The TDA8772 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 (TDA8772H/3) and 85 MHz (TDA8772H/8).
The DAC is 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.
ORDERING INFORMATION
TYPE
NUMBER
TDA8772H/3
TDA8772H/8
PACKAGE
NAME
DESCRIPTION
plastic quad flat package; 44 leads (lead length 1.3 mm);
QFP44 _{body 10 × 10 × 1.75 mm}
SAMPLING
VERSION ^FREQUENCY
SOT307-2
35 MHz
85 MHz
1997 Mar 06
2