SI3201-X-FS View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

SI3201-X-FS

PROSLIC® PROGRAMMABLE CMOS SLIC WITH RINGING/BATTERY VOLTAGE GENERATION

Silicon Laboratories 

Si3233

Register 72. On-Hook Line Voltage

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name

VSGN

VOC[5:0]

Type

R/W

R/W

Reset settings = 0010_0000

Bit

Name

Function

7

Reserved Read returns zero.

6

VSGN

On-Hook Line Voltage.

The value written to this bit sets the on-hook line voltage polarity (VTIP–VRING).

0 = VTIP–VRINGis positive

1 = VTIP–VRING is negative

5:0

VOC[5:0] On-Hook Line Voltage.

The value written to this register sets the on-hook line voltage (VTIP–VRING). Value may

be set between 0 V (0x00) and 94.5 V (0x3F) in 1.5 V steps. Default value = 48 V.

Register 73. Common Mode Voltage

Bit

D7

D6

D5

D4

D3

D2

D1

D0

Name

VCM[5:0]

Type

R/W

Reset settings = 0000_0010

Bit

Name

Function

7:6 Reserved Read returns zero.

5:0

VCM[5:0] Common Mode Voltage.

The value written to this register sets VTIP for forward active and forward on-hook trans-

mission states and VRING for reverse active and reverse on-hook transmission states.

The value may be set between 0 V (0x00) and –94.5 V (0x3F) in 1.5 V steps. Default

value = –3 V.

Preliminary Rev. 0.5

69

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