SI5375 Datasheet, PDF(38/54 Page) Silicon Laboratories – 4-PLL ANY-FREQUENCY PRECISION CLOCK MULTIPLIER/JITTER ATTENUATOR

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SI5375 Datasheet, PDF (38/54 Pages) Silicon Laboratories – 4-PLL ANY-FREQUENCY PRECISION CLOCK MULTIPLIER/JITTER ATTENUATOR

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Si5375

Bit

Name

OSC_ACTV_REG CK_ACTV_REG

Type

Reset value = 0010 0000

Bit

Name

Function

7:2

Reserved

1 OSC_ACTV_REG OSC_ACTV_REG.

Indicates if OSC is currently the active clock for PLL input.

CK_ACTV_REG CK_ACTV_REG.

Indicates if CKIN_q is currently the active clock for the PLL input.

0: CKIN_q is not the active input clock. Either it is not selected or LOS_INT is 1.

1: CKIN_q is the active input clock.

Bit

Name

LOS_INT LOSX_INT

Type

Reset value = 0000 0110

Bit

Name

Function

7:2 Reserved

LOS_INT LOS_INT.

Indicates the LOS status on CKINn_q.

0: Normal operation.

1: Internal loss-of-signal alarm on CKINn_q input.

LOSX_INT LOSX_INT.

Indicates the LOS status of the external reference on the OSC_P/N pins.

0: Normal operation.

1: Internal loss-of-signal alarm on OSC_P/N reference clock input.

Rev. 1.0

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