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ADV7188 数据表(PDF) 1 Page - Analog Devices

部件名 ADV7188
功能描述  Multiformat SDTV Video Decoder with Fast Switch Overlay Support
Download  112 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADV7188 数据表(HTML) 1 Page - Analog Devices

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Multiformat SDTV Video Decoder with Fast
Switch Overlay Support
ADV7188
Rev. 0
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
www.analog.com
Fax: 781.461.3113
© 2005 Analog Devices, Inc. All rights reserved.
FEATURES
Multiformat video decoder supports NTSC-(J, M, 4.43),
PAL-(B/D/G/H/I/M/N), SECAM
Integrates four 54 MHz, Noise Shaped Video®, 12-bit ADCs
SCART fast blank support
Clocked from a single 28.63636 MHz crystal
Line-locked clock-compatible (LLC)
Adaptive digital line length tracking (ADLLT™), signal
processing, and enhanced FIFO management give mini
TBC functionality
5-line adaptive comb filters
Proprietary architecture for locking to weak, noisy, and
unstable video sources such as VCRs and tuners
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
Integrated anti-aliasing filters
Programmable Interrupt request output pin
Automatic NTSC/PAL/SECAM identification
Digital output formats (8-bit, 10-bit, 16-bit, or 20-bit)
ITU-R BT.656 YCrCb 4:2:2 output + HS, VS, and FIELD
0.5 V to 1.6 V analog signal input range
Differential gain: 0.4% typ
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 (including XDS),
WSS, CGMS, Gemstar® 1×/2×, teletext, VITC, VPS
Power-down mode
2-wire serial MPU interface (I2C®-compatible)
3.3 V analog, 1.8 V digital core; 3.3 V IO supply
Industrial temperature grade: –40°C to +85°C
80-lead LQFP Pb-free package
APPLICATIONS
High end DVD recorders
Video projectors
HDD-based PVRs/DVDRs
LCD TVs
Set-top boxes
Professional video products
AVR receiver
GENERAL DESCRIPTION
The ADV7188 integrated video decoder automatically detects
and converts a standard analog baseband television signal that
is compatible 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 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 character-
istics, including tape-based sources, broadcast sources,
security/surveillance cameras, and professional systems.
The 12-bit accurate ADC provides professional quality video
performance and is unmatched. This allows true 10-bit
resolution in the 10-bit output mode.
The 12 analog input channels accept standard composite,
S-Video, and 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 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 ADV7188 modes are set up over
a 2-wire, serial, bidirectional port (I2C-compatible).
SCART and overlay functionality are enabled by the ADV7188’s
ability to simultaneously process CVBS and standard definition
RGB signals. Signal mixing is controlled by the fast blank pin.
The ADV7188 is fabricated in a 3.3 V CMOS process. Its
monolithic CMOS construction ensures greater functionality
with lower power dissipation. It is packaged in a small 80-lead
LQFP Pb-free package.


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