SI3215-GT Silicon Laboratories Inc, SI3215-GT Datasheet - Page 80
SI3215-GT
Manufacturer Part Number
SI3215-GT
Description
IC SLIC/CODEC 1CH 38TSSOP
Manufacturer
Silicon Laboratories Inc
Series
ProSLIC®r
Datasheet
1.SI3215-B-FM.pdf
(118 pages)
Specifications of SI3215-GT
Function
Subscriber Line Interface Concept (SLIC), CODEC
Interface
PCM, SPI
Number Of Circuits
1
Voltage - Supply
3.13 V ~ 5.25 V
Current - Supply
88mA
Power (watts)
700mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
*
Includes
Audio Tone Generation, BORSCHT Functions, FSK Generation, Voice Loopback Test Modes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Si3215
Register 65. External Bipolar Transistor Control
Reset settings = 0110_0001
80
Name
Type
Bit
3:2
1:0
Bit
7
6
5
4
ETBO[1:0]
ETBA[1:0]
Reserved
Name
ETBE
D7
SQH
CBY
SQH
R/W
D6
Read returns zero.
Audio Squelch.
0 = No squelch.
1 = STIPAC and SRINGAC pins squelched.
Capacitor Bypass.
0 = Capacitors CP (C1) and CM (C2) in circuit.
1 = Capacitors CP (C1) and CM (C2) bypassed.
External Transistor Bias Enable.
0 = Bias disabled.
1 = Bias enabled.
External Transistor Bias Levels—On-Hook Transmission State.
DC bias current which flows through external BJTs in the on-hook transmission state.
Increasing this value increases the compliance of the ac longitudinal balance circuit.
00 = 4 mA
01 = 8 mA
10 = 12 mA
11 = Reserved
External Transistor Bias Levels—Active Off-Hook State.
DC bias current which flows through external BJTs in the active off-hook state. Increasing
this value increases the compliance of the ac longitudinal balance circuit.
00 = 4 mA
01 = 8 mA
10 = 12 mA
11 = Reserved
CBY
R/W
D5
ETBE
R/W
D4
Rev. 0.92
D3
ETBO[1:0]
R/W
Function
D2
D1
ETBA[1:0]
R/W
D0
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