SI3232 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

SI3232

DUAL PROGRAMMABLE CMOS SLIC WITH LINE MONITORING

Silicon Laboratories 

Si3232

VOC: Open Circuit Voltage (RAM Address 0)

Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Name

VOC[14:0]

Type

R/W

Reset settings = 0x00

Bit

Name

Function

14:0 VOC[14:0] Open Circuit Voltage.

Programs the TIP-RING voltage during on-hook conditions. The recommended value is

48 V but can be programmed between 0 and 63.3 V. 4.907 mV/LSB, 1.005 V effective

resolution.

VOCDELTA: Open Circuit Off-Hook Offset Voltage (RAM Address 1)

Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Name

VOCDELTA[14:0]

Type

R/W

Reset settings = 0x00

Bit

Name

Function

14:0 VOCDELTA[14:0] Open Circuit Off-Hook Offset Voltage.

Programs the amount of offset that is added to the VOC RAM value when the device

transitions to off-hook. The recommended value is 7 V. 0 to 63.3 V range, 4.907 mV/

LSB, 1.005 V effective resolution.

VOCHTH: VOC Delta Upper Threshold (RAM Address 3)

Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Name

VOCHTH[15:0]

Type

R/W

Reset settings = 0x00

Bit

Name

Function

15:0 VOCHTH[15:0] VOC Delta Upper Threshold.

Programs the voltage delta above the VOC value at which the VOCDELTA offset volt-

age is removed. This threshold is only applicable during the off-hook to on-hook transi-

tion, and the VOCTHDL RAM location determines the threshold voltage during the on-

hook to off-hook transition. Default value is 2 V. 0 to 63.3 V range, 4.907 mV/LSB,

1.005 V effective resolution.

114

Preliminary Rev. 0.96

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