X98021_06 INTERSIL [Intersil Corporation], X98021_06 Datasheet

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X98021_06

Manufacturer Part Number
X98021_06
Description
210MHz Triple Video Digitizer with Digital PLL
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet
210MHz Triple Video Digitizer with
Digital PLL
The X98021 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 210MSPS conversion
rate supports resolutions up to UXGA at 75Hz refresh rate,
while the front end's high input bandwidth ensures sharp
images at the highest resolutions.
To minimize noise, the X98021'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 210MSPS 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 X98021'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 210MHz
with sampling clock jitter of 250ps peak to peak.
Simplified Block Diagram
RGB/YPbPr
RGB/YPbPr
HSYNC
VSYNC
SOG
®
IN
IN
1
IN
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 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Digital PLL
+
Offset
DAC
Features
• 210MSPS maximum conversion rate
• Low PLL clock jitter (250ps p-p @ 210MSPS)
• 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
• 1.1W 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.
March 8, 2006
to 1.4V
Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved
D
p-p
@ 210MSPS
8 or 16
x3
video input range
RGB/YUV
HSYNC
VSYNC
HS
PIXELCLK
OUT
OUT
OUT
OUT
OUT
X98021
FN8219.3

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X98021_06 Summary of contents

Page 1

Data Sheet 210MHz Triple Video Digitizer with Digital PLL The X98021 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 X98021L128-3.3 X98021L-3.3 X98021L128-3.3-Z (See Note) X98021L-3.3Z 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 ...

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

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Electrical Specifications Specifications apply for V unless otherwise noted (Continued) SYMBOL PARAMETER Input capacitance 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 ...

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Electrical Specifications Specifications apply for V unless otherwise noted (Continued) SYMBOL PARAMETER t DATA valid before rising edge of DATACLK 15pF DATACLK load, 15pF DATA load SETUP t DATA valid after rising edge of DATACLK HOLD AC TIMING CHARACTERISTICS (2 ...

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

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The HSYNC edge (programmable leading or trailing) that the DPLL is locked to. HSYNC The sampling phase setting determines its relative position to the rest of the AFE’s output signals IN t HSYNCin-to-HSout Analog Video In 0 ...

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Pinout ...

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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 ...

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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 ...

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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 X98021 BIT(s) FUNCTION NAME 0 HSYNC1 Active 0: HSYNC1 is Inactive 1: HSYNC1 is Active ...

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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) ...

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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 ...

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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 X98021 BIT(s) FUNCTION NAME 0 ABLC™ disable 0: ABLC™ enabled (default) 1: ABLC™ disabled 1 ...

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Register Listing (Continued) ADDRESS REGISTER (DEFAULT VALUE) 0x1B Power Control (0x00) 0x1C Reserved (0x47) 0x23 DC Restore Clamp (0x08) Technical Highlights The X98021 provides all the features of traditional triple channel video AFEs, but adds several next-generation enhancements, bringing performance ...

Page 16

Offset can drift significantly over 50°C, reducing image quality and requiring that the user do a manual calibration once the monitor has warmed up. In addition to drift, many AFEs exhibit interaction between the offset and gain controls. When the ...

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 X98021 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 ABLC™ 0x0C[0] RESOLUTION 0x17[0] 0 0.25 ADC LSBs (0.68mV) (ABLC on) 1 0.125 ADC LSBs (0.34mV) (ABLC on) 0 0.25 ADC LSBs (0.68mV) (ABLC ...

Page 21

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

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 FIGURE 9. ...

Page 24

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

Page 25

Conditions required: negative polarity VSYNC, with no serrations, and t HSYNC IN FIGURE 11. CSYNC ON HSYNC THAT MAY CAUSE SPORADIC IMAGE SHIFTS The output of the XOR gate is connected to the HSYNC input of the X98021. One of ...

Page 26

SCL SDA Start FIGURE 12. VALID START AND STOP CONDITIONS SCL from Host 1 Data Output from Transmitter Data Output from Receiver Start FIGURE 13. ACKNOWLEDGE RESPONSE FROM RECEIVER SCL SDA Data Stable FIGURE 14. VALID DATA CHANGES ON THE ...

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START Command X98021 Serial Bus Address (Repeat if desired) STOP Command S T Serial Bus Register A Signals from Address Address R the Host T ...

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START Command X98021 Serial Bus Address START Command X98021 Serial Bus Address (Repeat if desired) STOP Command S T Serial ...

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Metric Quad Flat Pack (MQFP 128 PIN 1 1 12.500 REF. C0.600X0.350 (4X) 12° ALL AROUND 13.870±0.100 A 14.000±0.100 (D1) ALL AROUND 1 DROP IN HEAT SPREADER 4 STAND POINTS EXPOSED All Intersil U.S. ...

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