參數(shù)資料
型號(hào): AD8159-EVAL-DC
廠商: Analog Devices, Inc.
英文描述: 3.2 Gbps Quad Buffer Mux/Demux
中文描述: 3.2 Gbps的四緩沖/解復(fù)用器
文件頁(yè)數(shù): 16/24頁(yè)
文件大小: 499K
代理商: AD8159-EVAL-DC
AD8159
Table 6. IN_C Port Input Equalization Settings
EQ_C
EQ
0
6 dB
1
12 dB
Rev. A | Page 16 of 24
Table 10. OUT_A Port Output Pre-Emphasis Settings
Typical Backplane Length
0 to 20 inches
20 to 40+ inches
Typical
Backplane
Length
0 to 10 inches
10 to 20 inches
20 to 30 inches
30 to 40+ inches
PE_A[1]
0
0
1
1
PE_A[0]
0
1
0
1
PE
0 dB
1.9 dB
3.5 dB
4.9 dB
Overshoot
0%
15%
35%
60%
Table 7. IN_A Port Input Equalization Settings
EQ_A
EQ
0
6 dB
1
12 dB
Typical Backplane Length
0 to 20 inches
20 to 40+ inches
Table 8. IN_B Port Input Equalization Settings
EQ_B
EQ
0
6 dB
1
12 dB
Typical Backplane Length
0 to 20 inches
20 to 40+ inches
Table 9. OUT_C Port Output Pre-Emphasis Settings
PE_C[1]
0
0
1
1
PE_C[0]
0
1
0
1
PE
0 dB
1.9 dB
3.5 dB
4.9 dB
Overshoot
0%
15%
35%
60%
Typical
Backplane
Length
0 to 10 inches
10 to 20 inches
20 to 30 inches
30 to 40+ inches
Table 11. OUT_B Port Output Pre-Emphasis Settings
Typical
Backplane
Length
0 to 10 inches
10 to 20 inches
20 to 30 inches
30 to 40+ inches
PE_B[1]
0
0
1
1
PE_B[0]
0
1
0
1
PE
0 dB
1.9 dB
3.5 dB
4.9 dB
Overshoot
0%
15%
35%
60%
LOOPBACK
The AD8159 also supports port level loopback, illustrated in
Figure 36. The loopback control pins override the lane select
(SEL[3:0]) and bicast control (BICAST) pins. Table 12 summa-
rizes the different loopback configurations.
0
X4
X4
X4
X4
X4
X4
1:2 DEMUX
OUT_A[3:0]
OUT_B[3:0]
IN_B[3:0]
IN_A[3:0]
PORT C LOOPBACK
PORT A LOOPBACK
PORT B LOOPBACK
2:1 MUX
IN_C[3:0]
OUT_C[3:0]
Figure 36. Port-Based Loopback Capability
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