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ADV7179

更新时间： 2024-11-26 21:59:31
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亚德诺 - ADI 编码器
页数 文件大小 规格书
52页 488K
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Chip Scale PAL/NTSC Video Encoder with Advanced Power Management

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Chip Scale PAL/NTSC Video Encoder with  
Advanced Power Management  
ADV7174/ADV7179  
FEATURES  
Programmable subcarrier frequency and phase  
ITU-R1 BT601/BT656 YCrCb to PAL/NTSC video encoder  
High quality 10-bit video DACs  
Programmable LUMA delay  
Individual on/off control of each DAC  
CCIR and square pixel operation  
SSAF™ (super sub-alias filter)  
Advanced power management features  
CGMS (copy generation management system)  
WSS (wide screen signaling)  
NTSC M, PAL N2, PAL B/D/G/H/I, PAL-M3 , PAL 60  
Single 27 MHz clock required (×2 oversampling)  
Macrovision 7.1 (ADV7174 only)  
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  
Closed captioning support  
80 dB video SNR  
Teletext insertion port (PAL-WST)  
On-board color bar generation  
On-board voltage reference  
2-wire serial MPU interface (I2C® compatible and fast I2C)  
Single-supply 2.8 V and 3.3 V operation  
Small 40-lead 6 mm × 6 mm LFCSP package  
−40°C to +85°C at 3.3 V  
32-bit direct digital synthesizer for color subcarrier  
Multistandard video output support:  
Composite (CVBS)  
Component S-video (Y/C)  
Video input data port supports:  
CCIR-656 4:2:2 8-bit parallel input format  
Programmable simultaneous composite and S-video or RGB  
(SCART)/YPbPr video outputs  
Programmable luma filters low-pass [PAL/NTSC] notch,  
extended SSAF, CIF, and QCIF  
Programmable chroma filters (low-pass [0.65 MHz, 1.0 MHz,  
1.2 MHz, and 2.0 MHz], CIF, and QCIF)  
−20°C to +85°C at 2.8 V  
APPLICATIONS  
Portable video applications  
Mobile phones  
Digital still cameras  
Programmable VBI (vertical blanking interval)  
FUNCTIONAL BLOCK DIAGRAM  
TTXREQ TTX  
ADV7174/ADV7179  
M
U
L
T
I
P
L
E
X
E
R
10  
10  
10  
POWER  
10  
10  
10  
10-BIT  
DAC  
MANAGEMENT  
CONTROL  
CGMS AND WSS  
INSERTION  
BLOCK  
TELETEXT  
INSERTION  
BLOCK  
DACA(PIN29)  
DACB(PIN28)  
DACC(PIN24)  
YUV TO  
RBG  
V
AA  
(SLEEP MODE)  
10-BIT  
DAC  
MATRIX  
RESET  
10-BIT  
DAC  
10  
8
PROGRAMMABLE  
9
8
Y
9
COLOR  
DATA  
ADD  
SYNC  
INTER-  
POLATOR  
LUMINANCE  
FILTER  
4:2:2 TO  
YCrCb  
4:4:4  
INTER-  
POLATOR  
TO  
YUV  
MATRIX  
P7–P0  
8
10  
10  
U
U
V
8
8
8
8
8
PROGRAMMABLE  
CHROMINANCE  
FILTER  
ADD  
BURST  
INTER-  
POLATOR  
8
8
V
10  
10  
HSYNC  
FIELD/VSYNC  
BLANK  
VIDEO TIMING  
GENERATOR  
V
REAL-TIME  
CONTROL  
CIRCUIT  
REF  
SIN/COS  
DDS BLOCK  
VOLTAGE  
REFERENCE  
CIRCUIT  
2
I C MPU PORT  
R
SET  
COMP  
CLOCK  
SCLOCK SDATA ALSB  
SCRESET/RTC  
GND  
Figure 1.  
1 ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).  
2 Throughout the document, N is referenced to PAL – Combination – N.  
3 ADV7174 only.  
Protected by U.S. Patent Numbers 5,343,196 and 5,442,355 and other intellectual property rights.  
Protected by U.S. Patent Numbers 4,631,603, 4,577,216, 4,819,098 and other intellectual property rights. The Macrovision anticopy process is licensed for  
noncommercial home use only, which is its sole intended use in the device. Contact the sales office for the latest Macrovision version available.  
Rev. A  
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 that may result from its use.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Specifications subject to change without notice. No license is granted by implication  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
 
 
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