DS64MB201_13 Datasheet, PDF (18/32 Pages) Texas Instruments – Dual Lane 2:1/1:2 Mux/Buffer with Equalization and De-Emphasis

DS64MB201
SNLS307E – JANUARY 2011 – REVISED JULY 2013
www.ti.com
0x23
0x24
0x25
0x26
0x27
0x2B
DOUT1
IDLE RATE Select
SIB1
EQ Control
DOUT1
VOD Control
DOUT1
DE Control
SIB1
IDLE Threshold
SOA0
IDLE RATE Select
Table 8. SMBus Register Map (continued)
7:6 Reserved
5
IDLE auto
4
IDLE select
3:2 Reserved
1
RATE auto
0
RATE select
7:6 Reserved
5:0 SIB1 EQ
R/W 0x00
R/W 0x20
7
Reserved
6:0 DOUT1 VOD
R/W 0x03
7:0 DOUT1 DEM
R/W 0x03
7:4 Reserved
R/W 0x00
3:0 IDLE threshold
7:6 Reserved
5
IDLE auto
4
IDLE select
3:2 Reserved
1
RATE auto
0
RATE select
R/W 0x00
Set bits to 0.
0: Allow IDLE_sel control in Bit 4
1: Automatic IDLE detect
0: Output is ON (SD is disabled)
1: Output is muted (electrical idle)
Set bits to 0.
0: Allow RATE_sel control in Bit 0
1: Automatic RATE detect
0: 2.5 to 3.2 Gbps
1: 5.0 to 6.4 Gbps
Set bits to 0.
SIB1 EQ Control - total of 24 levels
(3 gain stages with 8 settings)
[5]: Enable EQ
[4:3]: Gain Stage Control
[2:0]: Boost Level Control
Register [EN] [GST] [BST] = Hex Value
100000 = 20'h = Bypass (Default)
101010 = 2A'h = 5 dB at 3 GHz
110000 = 30'h = 9 dB at 3 GHz
110010 = 32'h = 11.7 dB at 3 GHz
111001 = 39'h = 14.6 dB at 3 GHz
110101 = 35'h = 18.4 dB at 3 GHz
110111 = 37'h = 20 dB at 3 GHz
111011 = 3B'h = 21.2 dB at 3 GHz
111101 = 3D'h = 28.4 dB at 3 GHz
Set bit to 0.
DOUT1 VOD Control
03'h = 600 mV (Default)
07'h = 800 mV
0F'h = 1000 mV
1F'h = 1200 mV
3F'h = Reserved
DOUT1 DEM Control
[7]: DEM TYPE (Compatibility = 0 / Enhanced = 1)
[6:0]: DEM Level Control
Register [TYPE] [Level Control] = Hex Value
00000001 = 01'h = 0.0 dB
00111000 = E8'h = −3.5 dB
10001000 = 88'h = −6.0 dB
10010000 = 90'h = −9.0 dB
10100000 = A0'h = −12.0 dB
Set bits to 0.
De-assert = [3:2], assert = [1:0]
00 = 110 mV, 70 mV (Default)
01 = 150 mV, 110 mV
10 = 170 mV, 130 mV
11 = 190 mV, 150 mV
Set bits to 0.
0: Allow IDLE_sel control in Bit 4
1: Automatic IDLE detect
0: Output is ON (SD is disabled)
1: Output is muted (electrical idle)
Set bits to 0.
0: Allow RATE_sel control in Bit 0
1: Automatic RATE detect
0: 2.5 to 3.2 Gbps
1: 5.0 to 6.4 Gbps
18
Submit Documentation Feedback
Product Folder Links: DS64MB201
Copyright © 2011–2013, Texas Instruments Incorporated