SAF7167AHW Datasheet, PDF (1/21 Pages) NXP Semiconductors – YUV-to-RGB digital-to-analog converter

SAF7167AHW
YUV-to-RGB digital-to-analog converter
Rev. 01 — 29 June 2004
Product data sheet
1. General description
The SAF7167AHW is a mixed-mode designed IC containing a video data path, keying
control block, analog mixer, and a voltage output amplifier, capable of converting digital
video data to analog RGB video, and then mixing video and external analog RGB inputs.
The video data path contains a data re-formatter, YUV-to-RGB colour space matrix as well
as triple DACs for video data processing. An analog mixer performs multiplexing between
DAC outputs of the video path and external analog RGB inputs.
The final analog outputs are buffered with built-in voltage output amplifiers to provide the
direct driving capability for a 150 Ω load. See the overall block diagram.
The operation of SAF7167AHW is controlled via the I²C-bus.
2. Features
s On-chip mixing of digital video data and analog RGB signals
s Supports video input format of YUV 4 : 2 : 2, 4 : 1 : 1, 2 : 1 : 1 and RGB 5 : 6 : 5
s Video input rate up to 66 MHz
s Allows for both binary and twos complement video input data
s Triple 8-bit DACs for video output
s Built-in voltage output amplifier
s Provides keying control with external key and internal 8-bit, 2 × 8-bit and 3 × 8-bit pixel
colour key
s Programmable via the I²C-bus
s 5 V CMOS device; HTQFP48 package.
3. Quick reference data
Table 1:
Symbol
V_DDD
V_DDA
T_amb
Quick reference data
Parameter
digital supply voltage
analog supply voltage
ambient temperature
Conditions
Min Typ
4.75 5.0
4.75 5.0
−40 -
Max Unit
5.25 V
5.25 V
+85 °C