DS100KR401_13 Datasheet, PDF (10/38 Pages) Texas Instruments – Ultra Low Power, 4 Lane (8-channel, bi-directional) Repeater for Data-rates up to 10.3 Gbps

DS100KR401
SNLS395B – JANUARY 2012 – REVISED MARCH 2012
www.ti.com
3.3V mode
2.5V mode
Enable
VDD_SEL
Internal
voltage
regulator
2.5V
VIN
VDD
VDD
VDD
3.3V
Capacitors can be
either tantalum or an
ultra-low ESR seramic.
0.1 uF
0.1 uF
0.1 uF
Disable
VDD_SEL
open
Internal
voltage
regulator
VIN
open
VDD
0.1 uF
2.5V
VDD
VDD
0.1 uF
Capacitors can be
either tantalum or an
ultra-low ESR seramic.
0.1 uF
VDD
0.1 uF
VDD
0.1 uF
VDD
0.1 uF
VDD
0.1 uF
Place 0.1 uF close to VDD Pin
Total capacitance should be 7 0.5 uF
Place capcitors close to VDD Pin
Figure 5. 3.3V or 2.5V Supply Connection Diagram
Level
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
EQA1
EQB1
0
0
0
0
R
R
R
R
Float
Float
Float
Float
1
1
1
1
EQA0
EQB0
0
R
Float
1
0
R
Float
1
0
R
Float
1
0
R
Float
1
Table 2. Equalizer Settings
EQ – 8 bits [7:0]
0000 0000 = 0x00
0000 0001 = 0x01
0000 0010 = 0x02
0000 0011 = 0x03
0000 0111 = 0x07
0001 0101 = 0x15
0000 1011 = 0x0B
0000 1111 = 0x0F
0101 0101 = 0x55
0001 1111 = 0x1F
0010 1111 = 0x2F
0011 1111 = 0x3F
1010 1010 = 0xAA
0111 1111 = 0x7F
1011 1111 = 0xBF
1111 1111 = 0xFF
dB at
1.0 GHz
1.7
2.8
4.1
5.1
6.2
5.1
7.7
8.8
6.3
9.9
11.3
12.4
11.9
13.6
15.1
16.1
dB at
3.0 GHz
4.2
6.6
8.6
9.8
12.4
12.0
15.0
16.5
14.8
19.2
21.7
23.2
24.1
26.0
28.3
29.7
dB at
5.0 GHz
5.3
8.7
10.6
11.7
15.6
16.6
18.3
19.7
20.3
23.6
25.8
27.0
29.1
30.7
32.7
33.8
Suggested Use
FR4 < 5 inch trace
FR4 5 inch 5–mil trace
FR4 5 inch 4–mil trace
FR4 10 inch 5–mil trace
FR4 10 inch 4–mil trace
FR4 15 inch 4–mil trace
FR4 20 inch 4–mil trace
FR4 25 to 30 inch 4–mil trace
FR4 30 inch 4–mil trace
FR4 35 inch 4–mil trace
10m, 30awg cable
10m – 12m cable
10
Submit Documentation Feedback
Product Folder Links: DS100KR401
Copyright © 2012, Texas Instruments Incorporated