SI3200-BS Silicon Laboratories Inc, SI3200-BS Datasheet - Page 87

• Manufacturer Part Number: SI3200-BS
• Description: IC LINEFEED INTRFC 100V 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3200-BS

• Function: Subscriber Line Interface Concept (SLIC), CODEC
• Interface: GCI, PCM, SPI
• Number Of Circuits: 2
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 110µA
• Power (watts): 941mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SBIAS: SLIC Bias Control (Register Address 8)
(Register type: Initialization/protected register bits)
Reset settings = 0xE0
Note: Bit type “P” = user-protected bits. Refer to the protected register bit section in the text of this application note.
Name
Type
Bit
3:2
1:0
Bit
7
6
5
4
OBIAS[1:0]
ABIAS[1:0]
STDBY
R/W–P
BIASEN
STDBY
SQLCH
Name
CAPB
D7
SQLCH
R/W–P
D6
Low-power Standby Status.
Writing to this bit causes temporary manual control of this bit until a subsequent on-hook
or off-hook transition.
0 = low-power mode off (i.e. Active off-hook).
1 = low-power mode on (i.e. Active on-hook).
Audio Squelch Control.
Indicates squelch of audio during the setting time set by the SPEEDUP RAM coefficient.
Writing to this bit causes temporary manual override until a speedup event occurs.
0 = Squelch off.
1 = Squelch on.
Audio Filter Capacitor Bypass.
Indicates filter capacitor pass during the setting time set by the SPEEDUP RAM coeffi-
cient. Writing to this bit causes temporary manual override until a speedup event occurs.
0 = Capacitors not bypassed.
1 = Capacitors bypassed.
SLIC Bias Enable.
Writing to this bit causes temporary manual control of SLIC bias until a subsequent on-
hook or off-hook state.
0 = SLIC bias off (i.e. Active on-hook).
1 = = SLIC bias on (i.e. Active off-hook).
SLIC Bias Level, On-Hook Transmission State.
DC bias current flowing in the SLIC circuit during on-hook transmission state. Increasing
this value increases the ability of the SLIC to withstand longitudinal current artifacts.
00 = 4 mA per lead.
01 = 8 mA per lead.
10 = 12 mA per lead.
11 = 16 mA per lead.
SLIC Bias Level, Active State.
DC bias current flowing in the SLIC circuit during the active off-hook state. Increasing this
value increases the ability of the SLIC to withstand longitudinal current artifacts.
00 = 4 mA per lead.
01 = 8 mA per lead.
10 = 12 mA per lead.
11 = 16 mA per lead.
R/W–P
CAPB
D5
BIASEN
R/W–P
Preliminary Rev. 0.96
D4
D3
OBIAS[1:0]
R/W–P
Function
D2
D1
ABIAS[1:0]
R/W–P
D0
Si3232
87