Multiformat SDTV Video Decoder
ADV7189B
FEATURES
Multiformat video decoder supports NTSC-(J, M, 4.43),
PAL-(B/D/G/H/I/M/N), SECAM
0.5 V to 1.6 V analog signal input range
Differential gain: 0.4% typ
Integrates three 54 MHz, Noise Shaped Video®, 12-bit ADCs
Clocked from a single 28 MHz crystal
Differential phase: 0.4° typ
Programmable video controls
Peak white/hue/brightness/saturation/contrast
Integrated on-chip video timing generator
Free-run mode (generates stable video output with no I/P)
VBI decode support for close captioning, WSS, CGMS, EDTV,
Gemstar® 1×/2×
Line-locked clock-compatible (LLC)
Adaptive-Digital-Line-Length-Tracking (ADLLT™), signal
processing, and enhanced FIFO management gives mini-
TBC functionality
5-line adaptive comb filters
Proprietary architecture for locking to weak, noisy, and
unstable video sources such as VCRs and tuners
Power-down mode
2-wire serial MPU interface (I2C®-compatible)
3.3 V analog, 1.8 V digital core; 3.3 V IO supply
2 temperature grades: 0°C to +70°C and –40°C to +85°C
80-lead LQFP Pb-free package
Subcarrier frequency lock and status information output
Integrated AGC with adaptive peak white mode
Macrovision® copy protection detection
CTI (chroma transient improvement)
DNR (digital noise reduction)
Multiple programmable analog input formats
CVBS (composite video)
S-Video (Y/C)
YPrPb component (VESA, MII, SMPTE, and BetaCam)
12 analog video input channels
Automatic NTSC/PAL/SECAM identification
Digital output formats (8-bit/10-bit/16-bit/20-bit)
ITU-R BT.656 YCrCb 4:2:2 output + HS, VS, and FIELD
APPLICATIONS
High-end DVD recorders
Video projectors
HDD-based PVRs/DVDRs
LCD TVs
Set-top boxes
Professional video products
AVR receivers
GENERAL DESCRIPTION
The ADV7189B integrated video decoder automatically detects
and converts a standard analog baseband television signal, com-
patible with worldwide standards NTSC, PAL, and SECAM into
4:2:2 component video data-compatible with 20-, 16-, 10-, and
8-bit CCIR601/CCIR656.
The 12 analog input channels accept standard composite,
S-Video, YPrPb video signals in an extensive number of
combinations. AGC and clamp restore circuitry allow an
input video signal peak-to-peak range of 0.5 V to 1.6 V.
Alternatively, these can be bypassed for manual settings.
The advanced and highly flexible digital output interface
enables performance video decoding and conversion in line-
locked, clock-based systems. This makes the device ideally
suited for a broad range of applications with diverse analog
video characteristics, including tape-based sources, broadcast
sources, security/surveillance cameras, and professional
systems.
The fixed 54 MHz clocking of the ADCs and datapath for
all modes allows very precise, accurate sampling and digital
filtering. The line-locked clock output allows the output data
rate, timing signals, and output clock signals to be synchronous,
asynchronous, or line locked even with 5% line length variation.
The output control signals allow glueless interface connections
in almost any application. The ADV7189B modes are set up
over a 2-wire, serial, bidirectional port (I2C-compatible).
The 12-bit accurate A/D conversion provides professional
quality video performance and is unmatched. This allows
true 10-bit resolution in the 10-bit output mode.
The ADV7189B is fabricated in a 3.3 V CMOS process. Its
monolithic CMOS construction ensures greater functionality
with lower power dissipation. The ADV7189B is packaged in a
small, 80-lead LQFP Pb-free package.
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. 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: 781.461.3113
www.analog.com
© 2005 Analog Devices, Inc. All rights reserved.
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