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Analog Devices - Digital CCIR-601 to PAL/NTSC Video Encoder

Numéro de référence ADV7175A
Description Digital CCIR-601 to PAL/NTSC Video Encoder
Fabricant Analog Devices 
Logo Analog Devices 





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ADV7175A fiche technique
a
High Quality, 10-Bit, Digital CCIR-601
to PAL/NTSC Video Encoder
ADV7175A/ADV7176A*
FEATURES
CCIR and Square Pixel Operation
ITU-R BT601/656 YCrCb to PAL/NTSC Video Encoder
High Quality 10-Bit Video DACs
Integral Nonlinearity <1 LSB at 10 Bits
Integrated Subcarrier Locking to External Video Source
Color Signal Control/Burst Signal Control
Interlaced/Noninterlaced Operation
NTSC-M, PAL-M/N, PAL-B/D/G/H/I
Single 27 MHz Clock Required (؋2 Oversampling)
80 dB Video SNR
Complete On-Chip Video Timing Generator
Programmable Multimode Master/Slave Operation
Macrovision Antitaping Rev 7.01 (ADV7175A Only)**
32-Bit Direct Digital Synthesizer for Color Subcarrier
Multistandard Video Output Support:
Composite (CVBS)
Closed Captioning Support
Teletext Insertion Port (PAL-WST)
Onboard Color Bar Generation
Component S-Video (Y/C)
Component YUV and RGB
EuroSCART Output (RGB + CVBS/LUMA)
Onboard Voltage Reference
2-Wire Serial MPU Interface (I2C Compatible)
Single Supply 5 V or 3 V Operation
Video Input Data Port Supports:
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
Individual ON/OFF Control of Each DAC
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
(Continued on page 11)
FUNCTIONAL BLOCK DIAGRAM
TTX
TTXREQ
VAA
COLOR
DATA
P7–P0
P15–P8
HSYNC
FIELD/VSYNC
BLANK
TELETEXT
INSERTION
BLOCK
8
4:2:2 TO 8
4:4:4
INTER-
POLATOR
8
YCrCb
TO
YUV
MATRIX
VIDEO TIMING
GENERATOR
8
8
ADD
INTER-
8
Y
LOW-PASS
SYNC
POLATOR
FILTER
YUV TO
RBG
MATRIX
10
M
U
L
10
T
I
P 10
L
E
X 10
E
R
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
8
ADD 8
INTER-
8
U 10
LOW-PASS
BURST
POLATOR
FILTER
8 ADD 8
BURST
INTER- 8
POLATOR
V 10
LOW-PASS
FILTER
10 10-BIT
DAC
ADV7175A/ADV7176A
I2C MPU PORT
REAL-TIME
CONTROL
CIRCUIT
10 10
SIN/COS
DDS BLOCK
VOLTAGE
REFERENCE
CIRCUIT
DAC D (PIN 27)
DAC C (PIN 26)
DAC B (PIN 31)
DAC A (PIN 32)
VREF
RSET
COMP
CLOCK RESET SCLOCK SDATA ALSB
SCRESET/RTC
GND
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2000

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