X98027L128-3.3 INTERSIL [Intersil Corporation], X98027L128-3.3 Datasheet

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X98027L128-3.3

Manufacturer Part Number
X98027L128-3.3
Description
275MHz Triple Video Digitizer with Digital PLL
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet

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275MHz Triple Video Digitizer with
Digital PLL
The X98027 3-channel, 8-bit Analog Front End (AFE)
contains all the components necessary to digitize analog
RGB or YUV graphics signals from personal computers,
workstations and video set-top boxes. The fully differential
analog design provides high PSRR and dynamic
performance to meet the stringent requirements of the
graphics display industry. The AFE’s 275MSPS conversion
rate supports resolutions up to QXGA at 60Hz refresh rate,
while the front end's high input bandwidth ensures sharp
images at the highest resolutions.
To minimize noise, the X98027's analog section features 2
sets of pseudo-differential RGB inputs with programmable
input bandwidth, as well as internal DC restore clamping
(including mid-scale clamping for YUV signals). This is
followed by the programmable gain/offset stage and the
three 275MSPS Analog-to-Digital Converters (ADCs).
Automatic Black Level Compensation (ABLC™) eliminates
part-to-part offset variation, ensuring perfect black level
performance in every application.
The X98027'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 275MHz
with sampling clock jitter of 250ps peak to peak.
Simplified Block Diagram
RGB/YPbPr
RGB/YPbPr
HSYNC
VSYNC
SOG
®
IN
IN
IN
1
IN
IN
1/2
1/2
1/2
1
2
Data Sheet
3
3
Processing
Voltage
Clamp
Sync
AFE Configuration and Control
PGA
1-888-INTERSIL or 1-888-352-6832
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Digital PLL
+
Offset
DAC
Features
• 275MSPS maximum conversion rate
• Low PLL clock jitter (250ps p-p @ 275MSPS)
• 64 interpixel sampling positions
• 0.35V
• Programmable bandwidth (100MHz to 780MHz)
• 2 channel input multiplexer
• RGB and YUV 4:2:2 output formats
• 5 embedded voltage regulators allow operation from
• Completely independent 8 bit gain/10 bit offset control
• CSYNC and SOG support
• Trilevel sync detection
• 1.2W typical P
• Pb-free plus anneal available (RoHS compliant)
Applications
• LCD Monitors and Projectors
• Digital TVs
• Plasma Display Panels
• RGB Graphics Processing
• Scan Converters
single 3.3V supply and enhance performance, isolation
8 bit ADC
ABLC™
p-p
All other trademarks mentioned are the property of their respective owners.
May 26, 2005
|
to 1.4V
Intersil (and design) is a registered trademark of Intersil Americas Inc.
D
p-p
@ 275MSPS
8 or 16
Copyright Intersil Americas Inc. 2005. All Rights Reserved
x3
video input range
RGB/YUV
HSYNC
VSYNC
HS
PIXELCLK
OUT
OUT
OUT
OUT
OUT
X98027
FN8221.0

Related parts for X98027L128-3.3

X98027L128-3.3 Summary of contents

Page 1

Data Sheet 275MHz Triple Video Digitizer with Digital PLL The X98027 3-channel, 8-bit Analog Front End (AFE) contains all the components necessary to digitize analog RGB or YUV graphics signals from personal computers, workstations and video set-top boxes. The ...

Page 2

... Ordering Information PART NUMBER X98027L128-3.3 X98027L128-3.3-Z (See Note) NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...

Page 3

Absolute Maximum Ratings Voltage (referenced to GND =GND =GND ) . . . . . . . . . . . . . . . . . . . 4.0V ...

Page 4

Electrical Specifications Specifications apply for V unless otherwise noted (Continued) SYMBOL PARAMETER DIGITAL INPUT CHARACTERISTICS (SDA, SADDR, CLOCKINV V Input HIGH Voltage IH V Input LOW Voltage IL I Input leakage current Input capacitance SCHMITT DIGITAL INPUT CHARACTERISTICS (SCL, VSYNC ...

Page 5

Electrical Specifications Specifications apply for V unless otherwise noted (Continued) SYMBOL PARAMETER t DATA valid after rising edge of DATACLK HOLD AC TIMING CHARACTERISTICS (2 WIRE INTERFACE) f SCL Clock Frequency SCL Maximum width of a glitch on SCL that ...

Page 6

HSYNC IN Analog P P Video DATACLK [7: [7: OUT Th HSYNC d The HSYNC edge (programmable leading or trailing) that the DPLL is ...

Page 7

The HSYNC edge (programmable leading or trailing) that the DPLL is locked to. HSYNC IN The sampling phase setting determines its relative position to the rest of the AFE’s output signals t HSYNCin-to-HSout Analog ...

Page 8

Pinout 8 X98027 X98027 (128-PIN MQFP) TOP VIEW FN8221.0 May 26, 2005 ...

Page 9

Pin Descriptions SYMBOL PIN Analog input. Red channel 1. DC couple or AC couple through 0.1µ Analog input. Green channel 1. DC couple or AC couple through 0.1µ Analog ...

Page 10

Pin Descriptions (Continued) SYMBOL PIN HS 125 3.3V digital output. HSYNC output aligned with pixel data. Use this output to frame the digital output data. OUT This output is always purely horizontal sync (without any composite sync signals) VS 126 ...

Page 11

Register Listing ADDRESS REGISTER (DEFAULT VALUE) 0x01 SYNC Status (read only) 0x02 SYNC Polarity (read only) 0x03 HSYNC Slicer (0x44) 0x04 SOG Slicer (0x08) 11 X98027 BIT(s) FUNCTION NAME 0 HSYNC1 Active 0: HSYNC1 is Inactive 1: HSYNC1 is Active ...

Page 12

Register Listing (Continued) ADDRESS REGISTER (DEFAULT VALUE) 0x05 Input configuration (0x00) 0x06 Red Gain (0x55) 0x07 Green Gain (0x55) 0x08 Blue Gain (0x55) 0x09 Red Offset (0x80) 0x0A Green Offset (0x80) 0x0B Blue Offset (0x80) 0x0C Offset DAC Configuration (0x00) ...

Page 13

Register Listing (Continued) ADDRESS REGISTER (DEFAULT VALUE) 0x0D AFE Bandwidth (0x0E) 0x0E PLL Htotal MSB (0x03) 0x0F PLL Htotal LSB (0x20) 0x10 PLL Sampling Phase (0x00) 0x11 PLL Pre-coast (0x08) 0x12 PLL Post-coast (0x00) 0x13 PLL Misc (0x00) 0x14 DC ...

Page 14

Register Listing (Continued) ADDRESS REGISTER (DEFAULT VALUE) 0x17 ABLC™ Configuration (0x40) 0x18 Output Format (0x00) 0x19 HSOUT Width (0x10) 0x1A Output Signal Disable (0x00) 14 X98027 BIT(s) FUNCTION NAME 0 ABLC™ disable 0: ABLC™ enabled (default) 1: ABLC™ disabled 1 ...

Page 15

Register Listing (Continued) ADDRESS REGISTER (DEFAULT VALUE) 0x1B Power Control (0x00) 0x1C Reserved (0x47) 0x23 DC Restore Clamp (0x08) 0x2B Crystal Compensation (0x14) Technical Highlights The X98027 provides all the features of traditional triple channel video AFEs, but adds several ...

Page 16

Offset can drift significantly over 50°C, reducing image quality and requiring that the user do ...

Page 17

Input Coupling Inputs can be either AC-coupled (default) or DC-coupled (see register 0x05[1]). AC coupling is usually preferred since it allows video signals with substantial DC offsets to be accurately digitized. The X98027 provides a complete internal DC-restore function, including ...

Page 18

ACTIVITY 0x01[6:0] & POLARITY 0x02[5:0] DETECT HSYNC1 HSYNC 1 SLICER IN 0x03[2:0] VSYNC 1 IN SOG SLICER SOG 1 IN 0x1C HSYNC2 HSYNC 2 SLICER IN 0x03[6:4] VSYNC 2 IN SOG SLICER SOG 2 IN 0x1C CLOCKINV IN XTAL IN ...

Page 19

Table 3 shows the corner frequency for different register settings. TABLE 3. BANDWIDTH CONTROL 0x0D[3:0] VALUE (LSB = “x” = “don’t care”) AFE BANDWIDTH 000x 001x 010x 011x 100x 101x 110x 111x Register 0x0D[7:4] controls a programmable zero, allowing high ...

Page 20

TABLE 5. OFFSET DAC RANGE AND OFFSET DAC ADJUSTMENT OFFSET DAC 10 BIT RANGE OFFSET DAC 0x0C[0] RESOLUTION 0 0.25 ADC LSBs (0.68mV) 1 0.125 ADC LSBs (0.34mV) 0 0.25 ADC LSBs (0.68mV) 1 0.125 ADC LSBs (0.34mV) Clock Generation ...

Page 21

HSYNC VSYNC SOG DETECT DETECT DETECT HSYNC and VSYNC Activity Detect Activity on these bits always indicates valid sync pulses, so they should have the ...

Page 22

HSYNC OUT HSYNC is an unmodified, buffered version of the OUT incoming HSYNC or SOG signal of the selected IN IN channel, with the incoming signal’s period, polarity, and width to aid in mode detection. HSYNC format as the incoming ...

Page 23

HSYNC DPLL Lock Edge IN (to A and B) Analog Video (to A and B) N-3 N-2 N-1 N DATACLK (A) DATA (A) HS (A) OUT DATACLK (B) DATA (B) HS (B) OUT Crystal Oscillator ...

Page 24

HSYNC DPLL Lock Edge IN (to A and B) Analog Video N-3 N-2 N-1 N (to A and B) PIXELCLK (A) (Internal) DATACLK (A) DATA (A) PRI DATA (A) SEC HS (A) OUT PIXELCLK ...

Page 25

TABLE 8. X98027 CRYSTAL COMPENSATION REGISTER 0x2B VALUE CRYSTAL FREQUENCY VALUE RANGE (MHz) (DECIMAL 23 25.0 - 26 Conditions required: negative polarity VSYNC, with no serrations, and t ...

Page 26

Communication is accomplished in three steps: 1. The Host selects the X98027 it wishes to communicate with. 2. The Host writes the initial X98027 Configuration Register address it wishes to write to or read from. 3. The Host writes to ...

Page 27

SCL SDA FIGURE 14. VALID DATA CHANGES ON THE SDA BUS START Command X98027 Serial Bus Address (Repeat if desired) STOP Command S T Serial ...

Page 28

START Command X98027 Serial Bus Address START Command X98027 Serial Bus Address (Repeat if desired) STOP Command S T Serial ...

Page 29

Metric Quad Flat Pack (MQFP) Package Type L All dimensions in mm. All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by ...

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