GS2986 datasheet(36/41 Pages) SEMTECH

36 / 41 page

GS2986 Multi-Rate SDI Reclocker with Equalization &

De-emphasis

Data Sheet

52134 - 3

July 2012

36 of 41

4.16 Device Power-up

In host mode (HIF pin tied LOW), control & status registers (CSRs) may start up in a random state.

There is a bit in the command word R which will reset the CSR when set LOW.

In non-host mode (HIF pin tied HIGH), the HIF pin is used to trigger an internal reset signal to

place all registers in a deterministic, default state upon power-up.

In either host mode or non-host mode, other internal state machines (e.g. offset correction and

PLL) automatically recover from any state at start-up with no reset required. It takes ~10

μs for

the device to lock after start-up.

4.17 Standby

The purpose of Standby mode is to allow operating power to be reduced when the device's

functionality is not required, and to have a rapid and simple transition to full operation when

the device is required.

In order to achieve this, the device can be powered-down by writing a ‘1’ to the ‘Power Down’

bit located in register address 0x02.

GS2986 Datasheet(PDF) 36 Page - Semtech Corporation