GS12341 datasheet(87/109 Pages) SEMTECH

87 / 109 page

GS12341

Final Data Sheet

Rev.1

PDS-061928

August 2019

87 of 109

Semtech

Proprietary & Confidential

www.semtech.com

(Continued)

OUTPUT_

PARAM_

TD_12G_2

(Continued)

CFG_OUTPUT0_TD_



12G_PREEMPH_AMPL

5:0

R/W

Configure the 12G rate pre-emphasis

amplitude on trace driver output0

(DDO0).



Range: 0 to 50d.

Adjust the pre-emphasis pulse

amplitude to better match the channel

loss at Nyquist.

Note: When per rate settings are

chosen, the trace driver 12G settings are

applied for all rates when the Reclocker

is unlocked



(see CTRL_OUTPUT0_TRDR_PER_RATE

for per rate setting).

OUTPUT_

PARAM_

TD_12G_3

RSVD

15:14

R/W

Reserved - do not modify.

CFG_OUTPUT0_TD_



12G_DRIVER_SWING

13:8

R/W

Configure the 12G rate amplitude on

trace driver output0 (DDO0). amplitude.



Range: 0 to 40d.

Adjust the differential trace driver

amplitude. The default value produces

an amplitude of 400mVppd.

Note: When per rate settings are

chosen, the trace driver 12G settings are

applied for all rates when the Reclocker

is unlocked



(see CTRL_OUTPUT0_TRDR_PER_RATE

for per rate setting).

RSVD

7:0

R/W

Reserved - do not modify.

RSVD

15:0

R/W

342

Reserved - do not modify.

RSVD

15:0

R/W

1C90

Reserved - do not modify.

RSVD

15:0

R/W

342

Reserved - do not modify.

RSVD

15:0

R/W

1C90

Reserved - do not modify.

RSVD

15:0

R/W

340

Reserved - do not modify.

OUTPUT_

PARAM_

MUTE_1

RSVD

15:14

R/W

Reserved - do not modify.

CFG_OUTPUT1_MUTE_

DRIVER_SWING

13:8

R/W

Controls the output mute differential

latch voltage on output1 (DDO1) trace

driver. Default is 8 = ~200mVdiff.

Increasing the setting may be required

for noisy environment, but mute power

increases proportionally to mute

differential latch voltage.



Range: 0 to 63d

RSVD

7:0

R/W

Reserved - do not modify.

RSVD

15:0

R/W

340

Reserved - do not modify.

Table 5-3: Control Register Descriptions (Continued)

Addressh

Name

Parameter Name

Bit

Slice

R/W

Reset

Valueh

Description

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