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GS12190 Datasheet(PDF) 92 Page - Semtech Corporation

Part # GS12190
Description  Bidirectional 12G UHD-SDI Reclocking Adaptive Cable Equalizer/Cable Driver
PDF  121 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

GS12190 Datasheet(HTML) 92 Page - Semtech Corporation

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GS12190
Final Data Sheet
Rev.3
PDS-061916
May 2020
92 of 121
Semtech
Proprietary & Confidential
www.semtech.com
2A
OUTPUT_
PARAM_CD_
SD_2
RSVD
15:13
R/W
0
Reserved—do not modify.
CFG_OUTPUT0_CD_
SD_PREEMPH_
WIDTH
12:8
R/W
3
Configures the MADI/SD rate
pre-emphasis pulse width on Cable
Driver output (SDIO):
Range = 0d to 15d
Adjust the pre-emphasis pulse width to
better match the channel loss response
shape.
RSVD
7
R/W
0
Reserved—do not modify.
CFG_OUTPUT0_CD_
SD_PREEMPH_
PWRDWN
6
R/W
1
Power-down the MADI/SD rate
pre-emphasis on Cable Driver output
(SDIO):
0 = Pre-emphasis driver powered-up
(pre-emphasis enabled)
1 = Pre-emphasis driver powered-down
(pre-emphasis disabled).
CFG_OUTPUT0_CD_
SD_PREEMPH_AMPL
5:0
R/W
0
Configures the MADI/SD rate
pre-emphasis amplitude on Cable
Driver output (SDIO):
Range = 0d to 15d
Adjust the pre-emphasis pulse
amplitude to better match the channel
loss at Nyquist.
2B
OUTPUT_
PARAM_CD_
SD_3
RSVD
15:14
R/W
0
Reserved—do not modify.
CFG_OUTPUT0_CD_
SD_DRIVER_
SWING
13:8
R/W
18
Configure the Cable Driver output
(SDIO) SD/MADI amplitude in ~25mVpp
steps:
Functional Range = 9d to 31d
Precision Range = 21d to 27d
Default value = 24d (~800mVpp)
Note: In auto slew mode
(CTRL_OUTPUT0_AUTO_SLEW=1), the
slew rate is determined by the rate at
which the reclocker is locked. If the
reclocker is unlocked, the slew will
default to 6G/12G Slew. See Table 2-3
for Rise/Fall Times, and Section 4.8.3 for
more details on output driver selection.
RSVD
7:0
R/W
A0
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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