SI3201-X-FS View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
SI3201-X-FS
Silicon Laboratories
SI3201-X-FS Datasheet PDF : 100 Pages
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Si3233
Table 20. ProSLIC Linefeed Operations
LF[2:0]*
000
001
010
011
100
101
110
111
Linefeed State
Open
Forward Active
Forward On-Hook Transmission
TIP Open
Ringing
Reverse Active
Reverse On-Hook Transmission
Ring Open
Description
TIP and RING tri-stated.
VTIP > VRING.
VTIP > VRING; audio signal paths powered on.
TIP tri-stated, RING active; used for ground start.
Ringing waveform applied to TIP and RING.
VRING > VTIP.
VRING > VTIP; audio signal paths powered on.
RING tri-stated, TIP active.
Note: The Linefeed register (LF) is located in direct Register 64.
Table 21. Measured Realtime Linefeed Interface Characteristics
Parameter
Loop Voltage Sense (VTIP –
VRING)
Loop Current Sense
Measurement
Range
–94.5 to +94.5 V
Resolution
1.5 V
–78.75 to +78.5 mA 1.25 mA
Register
Bits
LVSP,
LVS[6:0]
LCSP,
LCS[5:0]
Location*
Direct Register 78
Direct Register 79
TIP Voltage Sense
0 to –95.88 V
0.376 V
VTIP[7:0] Direct Register 80
RING Voltage Sense
0 to –95.88 V
0.376 V
VRING[7:0] Direct Register 81
Battery Voltage Sense 1 (VBAT)
Battery Voltage Sense 2 (VBAT)
Transistor 1 Current Sense
0 to –95.88 V
0 to –95.88 V
0 to 81.35 mA
0.376 V
0.376 V
0.319 mA
VBATS1[7:0]
VBATS2[7:0]
IQ1[7:0]
Direct Register 82
Direct Register 83
Direct Register 84
Transistor 2 Current Sense
0 to 81.35 mA
0.319 mA
IQ2[7:0]
Direct Register 85
Transistor 3 Current Sense
0 to 9.59 mA
37.6 µA
IQ3[7:0]
Direct Register 86
Transistor 4 Current Sense
0 to 9.59 mA
37.6 µA
IQ4[7:0]
Direct Register 87
Transistor 5 Current Sense
0 to 80.58 mA
0.316 mA
IQ5[7:0]
Direct Register 88
Transistor 6 Current Sense
0 to 80.58 mA
0.316 mA
IQ6[7:0]
Direct Register 89
*Note: The ProSLIC uses registers that are both directly and indirectly mapped. A “direct” register is one that is mapped
directly.
20
Preliminary Rev. 0.5
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