a
Digital PAL/NTSC Video Encoder with 10-Bit
SSAF
™
and Advanced Power Management
1
ADV7170/ADV7171
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)
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
Macrovision AntiTaping Rev 7.1 (ADV7170 Only)
4
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 5 V or 3.3 V Operation
Small 44-Lead MQFP/TQFP Packages
FEATURES
ITU-R
2
BT601/656 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 Signalling)
Simultaneous Y, U, V, C Output Format
NTSC-M, PAL-M/N
3
, PAL-B/D/G/H/I, PAL-60
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)
Component S-Video (Y/C)
Component YUV and RGB
EuroSCART Output (RGB + CVBS/LUMA)
Component YUV + CHROMA
Video Input Data Port Supports:
CCIR-656 4:2:2 8-Bit Parallel Input Format
4:2:2 16-Bit Parallel Input Format
Programmable Simultaneous Composite
and S-Video or RGB (SCART)/YUV Video Outputs
Programmable Luma Filters (Low-Pass [PAL/NTSC])
Notch, Extended (SSAF, CIF, and QCIF)
APPLICATIONS
High-Performance DVD Playback Systems, Portable
Video Equipment Including Digital Still Cameras and
Laptop PCs, Video Games, PC Video/Multimedia and
Digital Satellite/Cable Systems (Set-Top Boxes/IRD)
FUNCTIONAL BLOCK DIAGRAM
TTXREQ
TTX
M
U 10
L
T
I 10
P
L
E
10
X
E
R
V
AA
POWER
MANAGEMENT
CONTROL
(SLEEP MODE)
10
CGMS & WSS
INSERTION
BLOCK
TELETEXT
INSERTION
BLOCK
YUV TO
RBG
MATRIX
10
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
DAC D (PIN 27)
DAC C (PIN 26)
RESET
COLOR
DATA
P7–P0
P15–P8
8
4:2:2 TO
4:4:4
8
INTER-
POLATOR
8
Y 8
YCrCb
TO
U
YUV
MATRIX
V
9
9
PROGRAMMABLE
LUMINANCE
FILTER
10
PROGRAMMABLE
CHROMINANCE 10
FILTER
10
VIDEO TIMING
GENERATOR
I
2
C MPU PORT
REAL-TIME
CONTROL
CIRCUIT
U
10
10
DAC B (PIN 31)
ADD
SYNC
INTER-
POLATOR
8
8
8
ADD
BURST 8
8
INTER-
POLATOR 8
10
V
10-BIT
DAC
DAC A (PIN 32)
HSYNC
FIELD/VSYNC
BLANK
10
ADV7170/ADV7171
VOLTAGE
REFERENCE
CIRCUIT
V
REF
R
SET
COMP
SIN/COS
DDS BLOCK
CLOCK
SCLOCK
SDATA
ALSB
SCRESET/RTC
GND
NOTES
1
Protected by U.S. Patent Numbers 5,343,196 and 5,442,355 and other intellectual property rights.
2
ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
3
Throughout the document N is referenced to PAL- Combination -N.
4
This device is 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. Please contact sales office for latest Macrovision version available.
SSAF is a trademark of Analog Devices, Inc.
I
2
C is a registered trademark of Philips Corporation.
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. 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
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
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