Chip Scale PAL/NTSC Video Encoder with
Advanced Power Management
ADV7174/ADV7179
FEATURES
Programmable subcarrier frequency and phase
ITU-R BT601/BT656 YCrCb to PAL/NTSC video encoder
Programmable LUMA delay
High quality 10-bit video DACs
Individual on/off control of each DAC
SSAF™ (super sub-alias filter)
CCIR and square pixel operation
Advanced power management features
Integrated subcarrier locking to external video source
CGMS (copy generation management system)
Color signal control/burst signal control
WSS (wide screen signaling)
Interlaced/noninterlaced operation
NTSC M, PAL N , PAL B/D/G/H/I, PAL-M , PAL 60
Complete on-chip video timing generator
Single 27 MHz clock required (×2 oversampling)
Programmable multimode master/slave operation
Macrovision 7.1 (ADV7174 only)
Closed captioning support
80 dB video SNR
Teletext insertion port (PAL-WST)
32-bit direct digital synthesizer for color subcarrier
On-board color bar generation
Multistandard video output support:
On-board voltage reference
Composite (CVBS)
2-wire serial MPU interface (I
2
C® compatible and fast I
2
C)
Component S-video (Y/C)
Single-supply 2.8 V and 3.3 V operation
Video input data port supports:
Small 40-lead 6 mm × 6 mm LFCSP package
CCIR-656 4:2:2 8-bit parallel input format
−40°C to +85°C at 3.3 V
Programmable simultaneous composite and S-video or RGB
−20°C to +85°C at 2.8 V
(SCART)/YPbPr video outputs
APPLICATIONS
Programmable luma filters low-pass [PAL/NTSC] notch,
Portable video applications
extended SSAF, CIF, and QCIF
Mobile phones
Programmable chroma filters (low-pass [0.65 MHz, 1.0 MHz,
Digital still cameras
1.2 MHz, and 2.0 MHz], CIF, and QCIF)
Programmable VBI (vertical blanking interval)
FUNCTIONAL BLOCK DIAGRAM
TTXREQ
TTX
M
U 10
L
T
I 10
P
L
E 10
X
E
R
ADV7174/ADV7179
V
AA
RESET
COLOR
DATA
P7–P0
8
4:2:2 TO
4:4:4
8
INTER-
POLATOR
8
Y 8
YCrCb
TO
U 8
YUV
MATRIX
V 8
ADD
SYNC
9
INTER-
POLATOR
9
PROGRAMMABLE
LUMINANCE
FILTER
10
PROGRAMMABLE
CHROMINANCE 10
FILTER
10
VIDEO TIMING
GENERATOR
I
2
C MPU PORT
REAL-TIME
CONTROL
CIRCUIT
10
POWER
MANAGEMENT
CONTROL
(SLEEP MODE)
CGMS AND WSS
INSERTION
BLOCK
TELETEXT
INSERTION
BLOCK
YUV TO
RBG
MATRIX
10
10
10
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
DAC A (PIN 29)
DAC B (PIN 28)
DAC C (PIN 24)
8
ADD
BURST 8
8
INTER-
POLATOR 8
U
V
10
VOLTAGE
REFERENCE
CIRCUIT
V
REF
R
SET
COMP
HSYNC
FIELD/VSYNC
BLANK
SIN/COS
DDS BLOCK
CLOCK
SCLOCK
SDATA
ALSB
SCRESET/RTC
GND
Figure 1.
ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
Throughout the document, N is referenced to PAL – Combination – N.
3
ADV7174 only.
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.
2
1
Rev. B
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.
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2002–2009 Analog Devices, Inc. All rights reserved.
02980-A-001
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