EVAL-AD9880-ABZ Analog Devices Inc, EVAL-AD9880-ABZ Datasheet - Page 25

• Manufacturer Part Number: EVAL-AD9880-ABZ
• Description: Video Input Module Kit AD9880
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD9880-ABZ

• Main Purpose: Video, Video Processing
• Embedded: No
• Utilized Ic / Part: AD9880
• Primary Attributes: HDMI Receiver & Analog Interface
• Secondary Attributes: Triple 8-bit 150MSPS ADC's
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Hex
Address
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
Read/Write
or Read Only
Read
Read
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Bits
[3:0]
[7:0]
[7:0]
[7:0]
[7]
[6]
[5]
[4]
[3]
[1]
[0]
[7]
[6:5]
[4:3]
[2]
[1]
[0]
[7:0]
[7:0]
[7:0]
[7:0]
[7]
Default
Value
****0000
00000000
00001000
00010100
0*******
*0******
**0*****
***0****
****0***
******1*
*******0
0*******
*10*****
***01***
*****1**
******1*
*******0
00001000
32
50
50
1*******
Register Name
Hsyncs Per Vsync
MSB
Hsyncs Per Vsync
Clamp Placement
Clamp Duration
Red Clamp Select
Green Clamp Select
Blue Clamp Select
Clamp During Coast
Enable
Clamp Disable
Programmable
Bandwidth
Hold Auto Offset
Auto Offset Enable
Auto Offset
Update Mode
Difference Shift
Amount
Auto Jump Enable
Post Filter Enable
Toggle Filter Enable
Slew Limit
Sync Filter Lock
Threshold
Sync Filter Unlock
Threshold
Sync Filter Window
Width
SP Sync Filter Enable
Rev. 0 | Page 25 of 64
Description
MSB of Hsyncs per Vsync.
Hsyncs per Vsync count.
Number of pixel clocks after trailing edge of Hsync to begin
clamp.
Number of pixel clocks to clamp.
0 = clamp to ground.
1 = clamp to midscale.
0 = clamp to ground.
1 = clamp to midscale.
0 = clamp to ground.
1 = clamp to midscale.
0 = don’t clamp during Coast.
1 = clamp during Coast.
0 = internal clamp enabled.
1 = internal clamp disabled.
0 = low bandwidth.
1 = full bandwidth.
0 = normal auto offset operation.
1 = hold current offset value.
0 = manual offset.
1 = auto offset using offset as target code.
00 = every clamp.
01 = every 16 clamps.
10 = every 64 clamps.
11 = Every Vsync.
00 = 100% of difference used to calculate new offset.
01 = 50%.
10 = 25%.
11 = 12.5%.
0 = normal operation.
1 = if code > 15 codes off then offset is jumped to the predicted
offset necessary to fix the > 15 code mismatch.
0 = disable post filer.
1 = enable post filter.
Post filter reduces update rate by 1/6 and requires that all six
updates recommend a change before changing the offset. This
prevents unwanted offset changes.
The toggle filter looks for the offset to toggle back and forth and
holds it if triggered. This is to prevent toggling in case of missing
codes in the PGA.
Limits the amount the offset can change by in a single update.
Number of clean Hsyncs required for sync filter to lock.
Number of missing Hsyncs required to unlock the sync filter. Counter
counts up if Hsync pulse is missing and down for a good Hsync.
Width of the window in which Hsync pulses are allowed.
Enables Coast, Vsync duration, and Vsync filter to use the
regenerated Hsync rather than the raw Hsync.
AD9880