參數(shù)資料
型號: Si3232
廠商: Electronic Theatre Controls, Inc.
英文描述: DUAL PROGRAMMABLE CMOS SLIC WITH LINE MONITORING
中文描述: 兩個(gè)可編程的CMOS用戶接口與在線監(jiān)測
文件頁數(shù): 23/128頁
文件大?。?/td> 2327K
代理商: SI3232
Si3232
Preliminary Rev. 0.96
23
The dc linefeed circuitry generates the necessary TIP/RING I/V characteristics along with loop closure and ring trip
detection. For loop start applications, V
TIP
–V
RING
is programmable. The loop current limit, I
LIM
, is software-
programmable with a range from 18–45 mA.
Figure 8. V
TIP–RING
vs. I
LOOP
Characteristic for Loop Start Operation
Table 13. Register and RAM Locations used for Linefeed Control
Parameter
Register /
RAM
Mnemonic
LINEFEED
LINEFEED
RLYCON
ILIM
VOC
VCM
VOCDELTA
VOCLTH
VOCHTH
VOV
VOVRING
VOCTRACK
Register/RAM Bits
Programmable
Range
LSB Size
Effective
Resolution
Linefeed
Linefeed Shadow
Battery Feed Control
Loop Current Limit
On-Hook Line Voltage
Common Mode Voltage
V
OC
Delta for Off-Hook
V
OC
Delta Threshold, Low
V
OC
Delta Threshold, High
Overhead Voltage
Ringing Overhead Voltage
V
OC
During Battery Tracking
LF[2:0]
LFS[2:0]
BATSEL
ILIM[4:0]
VOC[14:0]
VCM[14:0]
VOCDELTA[14:0]
VOCTHD[15:0]
VOCTHD[15:0]
VOV[14:0]
VOVRING[14:0]
VOCTRACK[15:0]
See Table 12
Monitor only
VBATH/VBATL
18–45 mA
0 to 63.3 V
0 to 63.3 V
0 to 63.3 V
0 to 63.3 V
0 to 63.3 V
0 to 63.3 V
0 to 63.3 V
0 to 63.3 V
N/A
N/A
N/A
N/A
N/A
N/A
0.875 mV
4.907 mV
4.907 mV
4.907 mV
4.907 mV
4.907 mV
4.907 mV
4.907 mV
4.907 mV
0.875 mA
1.005 V
1.005 V
1.005 V
1.005 V
1.005 V
1.005 V
1.005 V
1.005 V
0
10
20
30
40
50
10
20
30
40
50
60
I
LIM
= 24 mA
I
LIM
R
O
= 600
V
T
(
I
LOOP
(mA)
V
OC
R
O
= 320
Loop Closure
Threshold
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