1
®
FN6760.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2008. All Rights Reserved
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ISL98003
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
IN
0
PGA
8-BIT ADC
+
O
F
F
S
E
T
D
A
C
ABLC™
8
X3
SOG
IN
0, 1
HSYNC
IN
0, 1
VSYNC
IN
0, 1
SYNC
PROCESSING
DIGITAL PLL
VOLTAGE
CLAMP
COLOR SPACE
CONVERTER
RGB/YPbPr
IN
1
3
3
RGB/YUV
OUT
PIXELCLK
OUT
HS
OUT
FIELD
OUT
H/VSYNC
OUT
DE
OUT
2
MEASUREMENT, AUTOADJUST, AFE CONFIGURATION AND CONTROL
Data Sheet September 25, 2008
