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GS3590 Datasheet(PDF) 86 Page - Semtech Corporation

Part # GS3590
Description  Bidirectional 3G-SDI Re-timing Adaptive Cable Equalizer/Cable Driver
PDF  118 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

GS3590 Datasheet(HTML) 86 Page - Semtech Corporation

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GS3590
Final Data Sheet Rev.4
PDS-061414 September 2017
86 of 118
Semtech
Proprietary & Confidential
www.semtech.com
16
SQUELCH_
PARAMETERS
RSVD
15
R/W
0
Reserved—do not modify.
CFG_CLI_SQUELCH_
THRESHOLD
14:8
R/W
40
Set the input signal squelch threshold.
Range = 0d to 40d (40d is max cable
reach determined for specific rate, cable
type, etc...)
RSVD
7
R/W
0
Reserved—do not modify.
CFG_CLI_SQUELCH_
HYSTERESIS
6:0
R/W
2
Set the input signal squelch hysteresis.
Range = 1d to 30d
17
CABLE_EQ_
BYPASS_
MODE
RSVD
15:2
R/W
0
Reserved—do not modify.
CTRL_CEQ_MANUAL_
BYPASS
1R/W
0
Controls Cable Equalizer [CEQ] (SDIO)
bypass when auto CEQ bypass is
disabled (CTRL_CEQ_AUTO_BYPASS= 0).
0 = Cable Equalizer never bypassed
1 = Cable Equalizer always bypassed
CTRL_CEQ_AUTO_
BYPASS
0R/W
1
Auto Cable Equalizer (SDIO) bypass
mode control:
0 = Disable auto mode
1 = Enable auto mode
When CFG_CEQ_AUTO_BYPASS = 0,
CEQ bypass is controlled by
CFG_CEQ_BYPASS_MANUAL.
18
INPUT_
LAUNCH_
SWING_CFG
RSVD
15:7
R/W
0
Reserved—do not modify.
CFG_CEQ_INPUT_
LAUNCH_SWING_
COMP
6:0
R/W
50
Input launch swing compensation
setting in units of 10 mVppd
Default setting of 80d (0x50)
corresponds to 800mV. Default for
upstream SMPTE compliant cable
drivers operating at 800mv ±10%.
Note: This is only for Cable EQ Mode
Table 5-3: Control Register Descriptions (Continued)
Addressh
Register
Name
Parameter Name
Bit
Slice
R/W
Reset
Valueh
Description
Setting (dec) vs. Voltage
25
250mV
30
300mV
35
350mV
...
100
1000mV



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