參數資料
型號: AM79C203JC
廠商: Electronic Theatre Controls, Inc.
英文描述: Advanced Subscriber Line Interface Circuit (ASLIC) Device
中文描述: 高級用戶線接口電路(ASLIC)設備
文件頁數: 23/48頁
文件大小: 501K
代理商: AM79C203JC
ASLIC/ASLAC Products
23
Notes:
1. Unless otherwise specified, test conditions are:
V
CC
= 5 V, R
TMG
= 1200
, Q
BAT
= BAT =
51 V, R
AB
= 35.7 k
, R
BAT1
= R
BAT2
= 365 k
, R
REF
= 7.87 k
, R
RX
= 75 k
, R
L
= 600
, R
SA
= R
SB
= 200 k
, C
HP
= 220 nF, C
DC1
= 1.0
μ
F, 50
fuse resistors, R
SR1
= R
SR2
= 750 k
,
C
AD
= C
BD
= 22 nF, C
B
= 100 nF and the following network is connected between V
TX
and R
SN
:
No.
Item
Condition
Min
Typ
Max
Unit
Note
11
Switchhook thresholds
All TSH settings
0.45
or
10
+0.45
or
+10
mA
%
9, 16,
19
Switchhook hysteresis
All TSH settings
10
%
4
12
Ground-key thresholds
All TGK settings
0.90
or
10
+0.90
or
+10
mA
%
9, 16,
19
Ground-key hysteresis
All TGK settings
10
%
4
13
Voltage that sets
thermal shutdown bit
Voltage on ASLIC device VDC with
RAB = 35.7 k
+4.19
V
14
IDIF fault-current
thresholds
Tip-to-battery fault current
(mA)
FT, pkFT
19.3, 50.6
10
+10
%
16,
19
FT, pkFT hysteresis
10
4
15
AISN gain accuracy
G
AISN
= ±0.0625
16
+16
G
AISN
= ±0.125
8
+8
G
AISN
= ±0.1875
6
+6
G
AISN
=
0.25 or G
AISN
+0.25
4
+4
16
Metering voltage
(MTRA) accuracy
Measured at ASLAC device VM pin
7
+7
17
Metering voltage noise
Wide-band signal to noise
40
dB
18
Ring-trip accuracy
5
5
%
4, 17,
20
19
Ring-trip hysteresis
V
ZX
I
ZX
4
5
V
μ
A
4, 17
20
Power-cross accuracy
During transmission
10
+10
%
17,
20
During ringing
10
+10
Table 6. ASLAC Device Transmission and Signaling Specifications (continued)
RT1
18.75 K
RT2
18.75 K
CT
430 pF
VTX
RSN
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