am79c203 ETC-unknow, am79c203 Datasheet - Page 23

• Manufacturer Part Number: am79c203
• Description: Advanced Subscriber Line Interface Circuit Aslic Device
• Manufacturer: ETC-unknow

Notes:
1. Unless otherwise specified, test conditions are:
No.
11
12
13
14
15
16
17
18
19
20
V
= 600 Ω, R
C
VTX
CC
AD
= 5 V, R
= C
Switchhook thresholds
Switchhook hysteresis
Ground-key thresholds
Ground-key hysteresis
Voltage that sets
thermal shutdown bit
IDIF fault-current
thresholds
FT, pkFT
FT, pkFT hysteresis
AISN gain accuracy
Metering voltage
(MTRA) accuracy
Metering voltage noise
Ring-trip accuracy
Ring-trip hysteresis
Power-cross accuracy
BD
SA
= 22 nF, C
TMG
18.75 K
Table 6. ASLAC Device Transmission and Signaling Specifications (continued)
= R
Item
RT1
= 1200 Ω, Q
SB
= 200 kΩ, C
B
= 100 nF and the following network is connected between V
430 pF
18.75 K
CT
BAT
RT2
All TSH settings
All TSH settings
All TGK settings
All TGK settings
Voltage on ASLIC device VDC with
RAB = 35.7 kΩ
Tip-to-battery fault current
(mA)
19.3, 50.6
G
G
G
G
Measured at ASLAC device VM pin
Wide-band signal to noise
V
I
During transmission
During ringing
HP
ZX
= BAT = –51 V, R
ZX
AISN
AISN
AISN
AISN
= 220 nF, C
= ±0.0625
= ±0.125
= ±0.1875
= ≤ –0.25 or G
RSN
Condition
ASLIC/ASLAC Products
DC1
AB
= 1.0 µF, 50 Ω fuse resistors, R
AISN
= 35.7 kΩ, R
≥ +0.25
BAT1
= R
–0.45
–0.90
+4.19
Min
BAT2
–10
–10
–10
–16
–10
–10
–8
–6
–4
–7
40
–5
or
or
= 365 kΩ, R
SR1
TX
Typ
–10
–10
–10
and R
= R
4
5
SR2
REF
SN
= 750 kΩ,
:
= 7.87 kΩ, R
Max
+0.45
+0.90
+10
+10
+10
+16
+10
+10
+8
+6
+4
+7
or
or
5
Unit
RX
mA
mA
dB
µA
%
%
%
%
%
%
%
V
V
= 75 kΩ, R
Note
9, 16,
9, 16,
4, 17,
4, 17
16,
17,
19
19
19
20
20
4
4
4
23
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