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| 型號： | EVAL-ADV7174EBM |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Chip Scale PAL/NTSC Video Encoder with Advanced Power Management |
| 中文描述： | 芯片級PAL / NTSC制式視頻編碼器與高級電源管理 |
| 文件頁數(shù)： | 1/52頁 |
| 文件大?。?/td> | 488K |
| 代理商： | EVAL-ADV7174EBM |
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Chip Scale PAL/NTSC Video Encoder with
Advanced Power Management
ADV7174/ADV7179
FEATURES
ITU-R
BT601/BT656 YCrCb to PAL/NTSC video encoder High quality 10-bit video DACs
SSAF (super sub-alias filter)
Advanced power management features
CGMS (copy generation management system)
WSS (wide screen signaling)
NTSC M, PAL N
2
, PAL B/D/G/H/I, PAL-M
3
, PAL 60
Single 27 MHz clock required (×2 oversampling)
Macrovision 7.1 (ADV7174 only)
80 dB video SNR
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)
Programmable VBI (vertical blanking interval)
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.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
2004 Analog Devices, Inc. All rights reserved.
www.analog.com
Programmable subcarrier frequency and phase
Programmable LUMA delay
Individual on/off control of each DAC
CCIR and square pixel operation
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
Teletext insertion port (PAL-WST)
On-board color bar generation
On-board voltage reference
2-wire serial MPU interface (I
2
C compatible and fast I
2
C)
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
20°C to +85°C at 2.8 V
APPLICATIONS
Portable video applications
Mobile phones
Digital still cameras
FUNCTIONAL BLOCK DIAGRAM
9
9
8
10
8
8
8
10
8
8
8
10
10
10
10
10
10
I
2
C MPU PORT
SCLOCK
SDATA
ALSB
HSYNC
FIELD/VSYNC
BLANK
CLOCK
GND
DACA(PIN29)
V
REF
R
SET
COMP
8
8
8
ADV7174/ADV7179
COLOR
DATA
P7–P0
SCRESET/RTC
DACB(PIN28)
DACC(PIN24)
V
AA
Y
U
V
RESET
TELETEXT
BLOCK
YUV TO
MRBG
CIRCUIT
REAL-TIME
CIRCUIT
DAC
DAC
DAC
M
U
L
T
I
P
L
E
X
E
R
CINSERTION
BLOCK
ADD
SYNC
ADD
BURST
INTER-
POLATOR
DSIN/COS
VIDEO TIMING
GENERATOR
PROGRAMMABLE
LFILTER
CHROMINANCE
FILTER
INTER-
POLATOR
MCONTROL
(SLEEP MODE)
YCrCb
TO
MATRIX
4:2:2 TO
I4:4:4
POLATOR
TTXREQ
TTX
10
10
10
U
V
0
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.
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