GS3590 datasheet(58/118 Pages) SEMTECH

58 / 118 page

GS3590

Final Data Sheet Rev.4



PDS-061414 September 2017

58 of 118

Semtech

Proprietary & Confidential

www.semtech.com

4.8.7 Output State Control Modes

The GS3590 provides several output state control modes to meet specific application

requirements. The Trace Driver has the following three output modes: operational,

muted, or disabled. The Cable Driver also has these three modes and additionally has a

balanced mode. During non-sleep, if the control modes are configured such that

multiple output modes are enabled, the priorities of the control modes from highest to

lowest are the following: balanced (Cable Driver only), disabled, and then muted.

Section 4.8.7.1 through Section 4.8.7.3 describe how to configure the output control

modes that are enabled during non-sleep.

If the device enters sleep, either manually or automatically, the sleep output control

modes take precedence over the non-sleep control modes. During sleep, the Cable

Driver will always be disabled, while the Trace Driver can be configured to mute or

disable during sleep. The default Trace Driver configuration is for it to be disabled

during sleep; however the Trace Driver can be configured to mute during sleep by

setting the CFG_SLEEP_OUTPUT1_MUTE parameter in register 0x5 to 1b.

4.8.7.1 Output Mute Control Mode

Each of the outputs on the GS3590 have independent mute control modes, which can

be configured through the host interface.

The following are the four output mute control modes:

1. The outputs automatically mute on LOS (default).

2. The outputs automatically mute on LOS and during rate search.

3. The outputs never mute.

4. The outputs are always muted.

The first mute control mode is the default power-up configuration for both output

drivers (the CTRL_OUTPUT<n>_AUTO_MUTE control parameter in register 0x49 is set

to 1b). In this mode, the outputs will automatically mute on the assertion of LOS. This

includes LOS as a result of setting up Squelch Adjust (see Section 4.2.3 for more details).

In addition to mute on LOS, with auto mute control mode configured, setting the

CTRL_OUTPUT<n>_AUTO_MUTE_DURING_RATE_SEARCH control parameter in

and begins to rate search.

The outputs can be manually configured to never mute by setting both the

CTRL_OUTPUT<n>_AUTO_MUTE and CTRL_OUTPUT<n>_MANUAL_MUTE control

parameters in register 0x49 to 0b. Alternatively, the outputs can be manually configured

to always be muted by setting the CTRL_OUTPUT<n>_AUTO_MUTE and

CTRL_OUTPUT<n>_MANUAL_MUTE control parameters to 0b and 1b respectively.

GS3590 Datasheet(PDF) 58 Page - Semtech Corporation

GS3590 Datasheet(HTML) 58 Page - Semtech Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL