ISL98003 Datasheet, PDF (1/31 Pages) Intersil Corporation – 8-Bit Video Analog Front End (AFE) with Measurement and Auto-Adjust Features

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Data Sheet
September 25, 2008
ISL98003
FN6760.0
8-Bit Video Analog Front End (AFE) with
Measurement and Auto-Adjust Features
The ISL98003 3-channel, 8-bit Analog Front End (AFE)
contains all the functionality needed to digitize analog YPbPr
video from HDTV tuners, set-top boxes, SD and HD DVDs,
as well as RGB graphics signals from personal computers
and workstations. The fourth generation analog design
delivers 8-bit performance and a 165MSPS maximum
conversion rate supporting resolutions up to UXGA at 60Hz.
The front end's programmable input bandwidth ensures
sharp, low noise images at all resolutions.
To accelerate and simplify mode detection, the ISL98003
integrates a sophisticated set of measurement tools that fully
characterizes the video signal and timing, offloading the host
microcontroller. Automatic Black Level Compensation
(ABLC™) eliminates part-to-part offset variation, ensuring
perfect black level performance in every application.
The ISL98003's Digital PLL generates a pixel clock from the
analog source's HSYNC or SOG (Sync-On-Green) signals.
Pixel clock output frequencies range from 10MHz to 165MHz
with sampling clock jitter of 250ps peak-to-peak.
Applications
• Flat Panel TVs
• Front/Rear Projection TVs
• PC LCD Monitors and Projectors
• High Quality Scan Converters
• Video/Graphics Processing
Simplified Block Diagram
Features
• 8-Bit Triple Analog-to-Digital Converters with
Oversampling Up to 8x in Video Modes
• Fast Automatic Selection of Best Sampling Phase
• 165MSPS Maximum Conversion Rate
(ISL98003CNZ-165)
• Robust, Glitchless Macrovision™-Compliant Sync
Separator
• Analog VCR “Trick Mode” Support
• ABLC for Perfect Black Level Performance
• 2-Channel Input Multiplexer
• Precision Sync Timing Measurement
• RGB to YUV Color Space Converter
• Low PLL Clock Jitter (250ps Peak-to-Peak)
• Programmable Input Bandwidth (10MHz to 450MHz)
• 64 Interpixel Sampling Positions
• ±6dB Gain Adjustment Range
• Pb-Free (RoHS compliant)
Related Literature
Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”.
RGB/YPbPr_IN0 ³
RGB/YPbPr_IN1 ³
SOGIN0, 1
HSYNC_IN0, 1
VSYNC_IN0, 1
VOLTAGE
CLAMP
OFFSET
DAC
ABLC™
PGA
+
8-BIT ADC
SYNC
PROCESSING
DIGITAL PLL
COLOR SPACE 8
CONVERTER _X3
RGB/YUVOUT
2
H/VSYNC_OUT
FIELDOUT
DEOUT
HS_OUT
PIXELCLK_OUT
MEASUREMENT, AUTOADJUST, AFE CONFIGURATION AND CONTROL
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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