High Quality, 10-Bit, Digital CCIR-601
to PAL/NTSC Video Encoder
a
ADV7175A/ADV7176A*
CCIR and Square Pixel Operation
FEATURES
Integrated Subcarrier Locking to External Video Source
Color Signal Control/Burst Signal Control
Interlaced/Noninterlaced Operation
Complete On-Chip Video Timing Generator
Programmable Multimode Master/Slave Operation
Macrovision Antitaping Rev 7.01 (ADV7175A Only)**
Closed Captioning Support
ITU-R BT601/656 YCrCb to PAL/NTSC Video Encoder
High Quality 10-Bit Video DACs
Integral Nonlinearity <1 LSB at 10 Bits
NTSC-M, PAL-M/N, PAL-B/D/G/H/I
Single 27 MHz Clock Required (؋
2 Oversampling)
80 dB Video SNR
32-Bit Direct Digital Synthesizer for Color Subcarrier
Multistandard Video Output Support:
Composite (CVBS)
Teletext Insertion Port (PAL-WST)
Onboard Color Bar Generation
Onboard Voltage Reference
Component S-Video (Y/C)
Component YUV and RGB
EuroSCART Output (RGB + CVBS/LUMA)
Video Input Data Port Supports:
2-Wire Serial MPU Interface (I2C Compatible)
Single Supply 5 V or 3 V Operation
Small 44-Lead MQFP Thermally Enhanced Package
CCIR-656 4:2:2 8-Bit Parallel Input Format
4:2:2 16-Bit Parallel Input Format
Full Video Output Drive or Low Signal Drive Capability
34.7 mA max into 37.5 ⍀ (Doubly-Terminated 75R)
5 mA min with External Buffers
APPLICATIONS
MPEG-1 and MPEG-2 Video, DVD, Digital Satellite/
Cable Systems (Set Top Boxes/IRDs), Digital TVs,
CD Video/Karaoke, Video Games, PC Video/Multimedia
Programmable Simultaneous Composite
and S-Video Y/C or RGB (SCART)/YUV Video Outputs
Programmable Luma Filters (Low-Pass/Notch/Extended)
Programmable VBI (Vertical Blanking Interval)
Programmable Subcarrier Frequency and Phase
Programmable LUMA Delay
GENERAL DESCRIPTION
The ADV7175A/ADV7176A is an integrated digital video encoder
that converts Digital CCIR-601 4:2:2 8 or 16-bit component
video data into a standard analog baseband television signal
Individual ON/OFF Control of Each DAC
(Continued on page 11)
FUNCTIONAL BLOCK DIAGRAM
M
U
L
T
I
P
L
E
X
E
R
10
10
10
TELETEXT
INSERTION
BLOCK
TTX
10-BIT
DAC
DAC D (PIN 27)
DAC C (PIN 26)
DAC B (PIN 31)
TTXREQ
YUV TO
RBG
10-BIT
DAC
MATRIX
V
AA
10-BIT
DAC
Y
8
8
8
8
8
8
10
8
8
8
INTER-
ADD
LOW-PASS
FILTER
COLOR
DATA
POLATOR
SYNC
YCrCb
P7–P0
4:2:2 TO
4:4:4
U
8
10
10
TO
YUV
INTER-
POLATOR
ADD
BURST
LOW-PASS
FILTER
INTER-
10
P15–P8
10-BIT
DAC
MATRIX
POLATOR
DAC A (PIN 32)
V
8
8
INTER-
POLATOR
ADD
BURST
LOW-PASS
FILTER
ADV7175A/ADV7176A
10
10
HSYNC
REAL-TIME
CONTROL
CIRCUIT
V
REF
VOLTAGE
REFERENCE
CIRCUIT
2
VIDEO TIMING
GENERATOR
FIELD/VSYNC
I C MPU PORT
SIN/COS
DDS BLOCK
R
SET
BLANK
COMP
SCRESET/RTC
CLOCK
SCLOCK SDATA ALSB
GND
RESET
The Macrovision anticopy process is
licensed for noncommercial home use only, which is its sole intended use in the device. Please contact sales office for latest Macrovision version available.
NOTE: ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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Tel: 781/329-4700
Fax: 781/326-8703
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© Analog Devices, Inc., 2000