AM79C031 Datasheet, PDF (23/48 Pages) List of Unclassifed Manufacturers – Advanced Subscriber Line Interface Circuit (ASLIC) Device

Table 6. ASLAC Device Transmission and Signaling Specifications (continued)
No.
Item
Condition
11 Switchhook thresholds All TSH settings
Switchhook hysteresis
12
Ground-key thresholds
All TSH settings
All TGK settings
Ground-key hysteresis
13 Voltage that sets
thermal shutdown bit
14 IDIF fault-current
thresholds
FT, pkFT
All TGK settings
Voltage on ASLIC device VDC with
RAB = 35.7 kΩ
Tip-to-battery fault current
(mA)
19.3, 50.6
Min
–0.45
or
–10
–0.90
or
–10
Typ
–10
–10
+4.19
–10
Max
+0.45
or
+10
+0.90
or
+10
Unit
mA
%
%
mA
%
%
V
+10
FT, pkFT hysteresis
–10
15 AISN gain accuracy
G_AISN = ±0.0625
–16
G_AISN = ±0.125
–8
G_AISN = ±0.1875
–6
G_AISN = ≤ –0.25 or G_AISN ≥ +0.25
–4
16 Metering voltage
(MTRA) accuracy
Measured at ASLAC device VM pin
–7
+16
+8
%
+6
+4
+7
17 Metering voltage noise Wide-band signal to noise
40
dB
18 Ring-trip accuracy
–5
5
%
19 Ring-trip hysteresis
20 Power-cross accuracy
V_ZX
I_ZX
During transmission
During ringing
4
V
5
µA
–10
+10
%
–10
+10
Note
9, 16,
19
4
9, 16,
19
4
16,
19
4
4, 17,
20
4, 17
17,
20
Notes:
1. Unless otherwise specified, test conditions are:
V_CC = 5 V, R_TMG = 1200 Ω, Q_BAT = BAT = –51 V, R_AB = 35.7 kΩ, R_BAT1 = R_BAT2 = 365 kΩ, R_REF = 7.87 kΩ, R_RX = 75 kΩ, R_L
= 600 Ω, R_SA = R_SB = 200 kΩ, C_HP = 220 nF, C_DC1 = 1.0 µF, 50 Ω fuse resistors, R_SR1 = R_SR2 = 750 kΩ,
C_AD = C_BD = 22 nF, C_B = 100 nF and the following network is connected between V_TX and R_SN:
RT1
18.75 K
RT2
18.75 K
VTX
RSN
CT
430 pF
ASLIC/ASLAC Products
23