Digital PAL/NTSC Video Encoder with 10-Bit
SSAF™ and Advanced Power Management
ADV7170/ADV7171
Programmable LUMA delay
Individual on/off control of each DAC
CCIR and square pixel operation
FEATURES
ITU-R1 BT601/656 YCrCb to PAL/NTSC video encoder
High quality 10-bit video DACs
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)3
Closed captioning support
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 5 V or 3.3 V operation
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/N2, PAL B/D/G/H/I, PAL60
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)
Components S-Video (Y/C), YUV, and RGB
EuroSCART output (RGB + CVBS/LUMA)
Component YUV + CHROMA
Small 44-lead MQFP/TQFP packages
Industrial temperature grade = −40°C to +85°C4
APPLICATIONS
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
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)
1 ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced
CCIR recommendations).
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)
2 Throughout the document N is referenced to PAL- Combination -N.
3 Protected by U.S. Patents 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.
Programmable VBI (vertical blanking interval)
4 Refer to Table 8 for complete operating details.
Programmable subcarrier frequency and phase
TTXREQ
TTX
M
POWER
10
10
10
10
10
10
U
L
T
I
10-BIT
DAC
MANAGEMENT
CONTROL
CGMS AND WSS
INSERTION
BLOCK
DAC D (PIN 27)
DAC C (PIN 26)
DAC B (PIN 31)
TELETEXT
INSERTION
BLOCK
YUV TO
RGB
V
AA
(SLEEP MODE)
P
L
E
X
E
R
10-BIT
DAC
MATRIX
RESET
10-BIT
DAC
8
Y 8
9
9
COLOR
DATA
P7–P0
PROGRAMMABLE
LUMINANCE
FILTER
ADD
SYNC
INTER-
POLATOR
10
4:2:2 TO
YCrCb
8
8
4:4:4
INTER-
TO
YUV
U
10
U 8
V 8
8
8
8
8
10
PROGRAMMABLE
CHROMINANCE
FILTER
INTER-
POLATOR
ADD
BURST
POLATOR
MATRIX
P15–P8
10-BIT
DAC
DAC A (PIN 32)
10
V
ADV7170/ADV7171
HSYNC
FIELD/VSYNC
BLANK
10
SIN/COS
10
REAL-TIME
CONTROL
CIRCUIT
VIDEO TIMING
GENERATOR
2
V
REF
I C MPU PORT
VOLTAGE
REFERENCE
CIRCUIT
R
DDS BLOCK
SET
COMP
CLOCK
SCLOCK SDATA
ALSB
SCRESET/RTC
GND
Figure 1. Functional Block Diagram
Protected by U.S. Patents 5,343,196; 5,442,355; and other intellectual property rights.
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 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2002–2009 Analog Devices, Inc. All rights reserved.
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