SI3206-B-GQ Silicon Laboratories Inc, SI3206-B-GQ Datasheet - Page 87

• Manufacturer Part Number: SI3206-B-GQ
• Description: IC PROSLIC LINE FEED 125V 48TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3206-B-GQ

• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Longitudinal Balanced: 63
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TQFP
• Loop Current Limit: 45mA
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Function: Subscriber Line Interface Concept (SLIC)
• Interface: GCI, PCM, SPI
• Number Of Circuits: 4
• Voltage - Supply: 3.3V
• Current - Supply: *
• Power (watts): *
• Operating Temperature: *
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP Exposed Pad
• Includes: *
• Lead Free Status / RoHS Status: 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