參數資料
型號: SI3211-KT
廠商: Electronic Theatre Controls, Inc.
元件分類: Codec
英文描述: PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION
中文描述: ProSLIC產品可編程的CMOS用戶接口/有振鈴編解碼器/電池電壓生成
文件頁數: 11/122頁
文件大?。?/td> 1950K
代理商: SI3211-KT
Si3210/Si3211/Si3212
Preliminary Rev. 1.11
11
Table 4. Linefeed Characteristics
(V
DDA
, V
DDD
= 3.13 to 5.25 V, T
A
= 0 to 70°C for K-Grade, –40 to 85°C for B-Grade)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Loop Resistance Range
R
LOOP
See note.*
0
160
%
DC Loop Current Accuracy
I
LIM
= 29 mA, ETBA = 4 mA
Active Mode; V
OC
= 48 V,
V
TIP
– V
RING
I
LOOP
< I
LIM
–10
10
DC Open Circuit Voltage
Accuracy
–4
4
V
DC Differential Output
Resistance
R
DO
160
DC Open Circuit Voltage—
Ground Start
V
OCTO
I
RING
<I
LIM
; V
RING
wrt ground
V
OC
= 48 V
I
RING
<I
LIM
; RING to ground
–4
4
V
DC Output Resistance—
Ground Start
R
ROTO
160
DC Output Resistance—
Ground Start
R
TOTO
TIP to ground
150
k
Loop Closure/Ring Ground
Detect Threshold Accuracy
I
THR
= 11.43 mA
–20
20
%
Ring Trip Threshold
Accuracy
R
THR
= 1100
–20
20
%
Ring Trip Response Time
User Programmable Register 70
and Indirect Register 36
Ring Amplitude
V
TR
5 REN load; sine wave;
R
LOOP
= 160
,
V
BAT
= –75 V
Programmable in Indirect
Register 19
44
V
RMS
Ring DC Offset
R
OS
0
V
Trapezoidal Ring Crest
Factor Accuracy
Crest factor = 1.3
–.05
.05
Sinusoidal Ring Crest
Factor
R
CF
1.35
1.45
Ringing Frequency Accuracy
f = 20 Hz
–1
1
%
Ringing Cadence Accuracy
Accuracy of ON/OFF Times
CAL to
CAL Bit
At Power Threshold = 300 mW
–50
50
msec
Calibration Time
600
msec
Power Alarm Threshold
Accuracy
–25
25
%
*Note:
DC resistance round trip; 160
corresponds to 2 kft 26 gauge AWG
.
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