GS12190 datasheet(28/121 Pages) SEMTECH

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GS12190

Final Data Sheet

Rev.3

PDS-061916

May 2020

28 of 121

Semtech

Proprietary & Confidential

www.semtech.com

If the Reclocker cannot lock to any of the valid rates in automatic mode or the selected

rate in manual mode, the signal can automatically be bypassed to the output. If the

reclocker does lock to the incoming signal, the reclocked and bypassed (if manual

bypass control enabled) signals are available at the appropriate output. See Section 4.8

for more details.

4.4.3 Lock Time

4.4.3.1 Synchronous and Asynchronous Lock Time

Synchronous lock time is defined as the time it takes the device to re-lock to an existing

signal that has been momentarily interrupted or to a new signal of the same data rate

as the previous signal which has been quickly switched in.

Asynchronous lock time is defined as the time it takes the device to lock when a signal

is first applied to the serial digital inputs, or when the signal rate changes. The

asynchronous and synchronous lock times are defined in Table 2-3.

Note: To ensure synchronous lock times are met, the maximum interruption time of the

signal is 10µs for an SD-SDI signal. HD, 3G, 6G, or 12G signals must have a maximum

interruption time of 6µs. The new signal, after interruption, must have the same

frequency as the original signal but may have an arbitrary phase.

Table 4-3: Detected Data Rates

STAT_DETECTED_

RATE [2:0]

Detected Data Rate

Unlocked

MADI (125Mb/s)

SD (270Mb/s)

HD (1.485Gb/s)

3G (2.97Gb/s)

6G (5.94Gb/s)

12G (11.88Gb/s)

Reserved

GS12190 Datasheet(PDF) 28 Page - Semtech Corporation