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GS3281 Datasheet(PDF) 68 Page - Semtech Corporation

Part # GS3281
Description  3G-SDI Re-timing Cable Driver
PDF  97 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

GS3281 Datasheet(HTML) 68 Page - Semtech Corporation

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GS3281
Final Data Sheet
Rev.7
PDS-061453
January 2019
68 of 97
Semtech
Proprietary & Confidential
www.semtech.com
Trace Equalizer Configuration
14
RSVD
RSVD
15:0
R/W
303
Reserved - do not modify.
15
RSVD
RSVD
15:0
R/W
0
Reserved - do not modify.
16
RSVD
RSVD
15:0
R/W
4002
Reserved - do not modify.
17
RSVD
RSVD
15:0
R/W
1
Reserved - do not modify.
18
RSVD
RSVD
15:0
R/W
50
Reserved - do not modify.
19
RSVD
RSVD
15:0
R/W
1
Reserved - do not modify.
1A
RSVD
RSVD
15:0
R/W
14
Reserved - do not modify.
1B
RSVD
RSVD
15:0
R/W
1
Reserved - do not modify.
1C
RSVD
RSVD
15:0
R/W
4
Reserved - do not modify.
1D
RSVD
RSVD
15:0
R/W
0
Reserved - do not modify.
1E
TREQ0_
INPUT_BOOST
RSVD
15:5
R/W
0
Reserved - do not modify.
CFG_TREQ0_BOOST
4:1
R/W
2
Trace equalizer boost setting for TEQ
(Trace Equalizer):
0 = Bypass equalization stage
1 to 8 = 1 to 17dB of insertion loss at
1.485GHz (see Figure 4-1).
Bypass is the minimum boost setting;
boost 8 is maximum boost setting.
CFG_TREQ0_
CD_BOOST
0R/W
0
Selects boost level applied to DDI input
signal for carrier detection function
only.
0 = Sets to boost 8 (See Figure 4-1)
1 = Use CFG_TREQ0_BOOST setting
1F
TREQ0_CD_
HYSTERESIS
RSVD
15:8
R/W
0
Reserved - do not modify.
CFG_TREQ0_CD_
ASSERT_THRESH
7:4
R/W
4
Sets assert threshold for trace equalizer
carrier detect
0 to15d, where 0 is minimum threshold
and 15d is maximum threshold (see
Figure 4-2).
CFG_TREQ0_CD_
DEASSERT_THRESH
3:0
R/W
3
Sets deassert threshold for trace
equalizer carrier detect
0 to15d, where 0 is minimum threshold
and 15d is maximum threshold (see
Figure 4-2).
20
RSVD
RSVD
15:0
R/W
3
Reserved - do not modify.
21
RSVD
RSVD
15:0
R/W
F
Reserved - do not modify.
22
RSVD
RSVD
15:0
R/W
3FF
Reserved - do not modify.
Table 5-3: Control Register Descriptions (Continued)
Addressh
Register
Name
Parameter Name
Bit
Slice
R/W
Reset
Valueh
Description



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