TLK1101E Datasheet, PDF (11/28 Pages) Texas Instruments – 11.3-Gbps Cable and PC Board Equalizer

TLK1101E
www.ti.com
SLLS845A – AUGUST 2007 – REVISED OCTOBER 2007
NAME
REG11OFF
REG3OFF
REG2OFF
REG1OFF
DISABLE
LOS_RNG
OCOFF
I2CMODE
THRESH7
THRESH6
THRESH5
THRESH4
THRESH3
THRESH2
THRESH1
THRESH0
DEEM3
DEEM2
DEEM1
DEEM0
Table 20. Register Functionality
REGISTER DESCRIPTION
Address 0 bit 7:
Register address 11 control
Address 0 bit 6:
Register address 3 control
Address 0 bit 5:
Register address 2 control
Address 0 bit 4:
Register address 1 control
Address 0 bit 3:
Output disable
Address 0 bit 2:
LOS Range
Address 0 bit 1:
Offset cancellation disable
Address 0 bit 0:
Two-wire interface disable
Address 1 bit 7:
Input threshold adjust bit 7 (MSB)
Address 1 bit 6:
Input threshold adjust bit 6
Address 1 bit 5:
Input threshold adjust bit 5
Address 1 bit 4:
Input threshold adjust bit 4
Address 1 bit 3:
Input threshold adjust bit 3
Address 1 bit 2:
Input threshold adjust bit 2
Address 1 bit 1:
Input threshold adjust bit 1
Address 1 bit 0:
Input threshold adjust bit 0 (LSB)
Address 2 bit 3:
De-emphasis adjust bit 3 (MSB)
Address 2 bit 2:
De-emphasis adjust bit 2
Address 2 bit 1:
De-emphasis adjust bit 1
Address 2 bit 0:
De-emphasis adjust bit 0 (LSB)
FUNCTION
Register address 11 control bit:
1 = External LOS level (LOSL) control active
0 = Register address 11 settings active (default)
Register address 3 control bit:
1 = External output swing (SWG) control active
0 = Register address 3 settings active (default)
Register address 2 control bit:
1 = External output de-emphasis (DE) control active
0 = Register address 2 settings active (default)
Register address 1 control bit:
1 = External input threshold (VTH) control active
0 = Register address 1 settings active (default)
Output disable bit:
1 = Output disabled
0 = Output enabled (default)
LOS Range bit:
1 = High LOS assert voltage range
0 = Low LOS assert voltage range (default)
Offset cancellation disable bit:
1 = Offset cancellation is disabled
0 = Offset cancellation is enabled (default)
Two-wire interface disable bit:
1 = Register settings active
0 = External control active (default)
Input threshold adjustment setting:
Maximum positive shift for 00000001 (1)
Minimum positive shift for 01111111 (127)
Zero shift for 10000000 (128) or 00000000 (0) (default)
Minimum negative shift for 10000001 (129)
Maximum negative shift for 11111111 (255)
De-emphasis setting:
De-emphasis (dB)
0
0.875
1.75
2.625
3.5
4.375
5.25
6.125
7
Register Setting
0000 (default)
0001
0011
0100
0101
0111
1100
1101
1111
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TLK1101E
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