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ADV7175A_15

更新时间: 2024-11-28 01:20:47
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
50页 413K
描述
High Quality, 10-Bit, Digital CCIR-601 to PAL/NTSC Video Encoder

ADV7175A_15 数据手册

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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.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 2000  

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