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參數(shù)資料
| 型號(hào)： | AM79C202JC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Advanced Subscriber Line Interface Circuit |
| 中文描述： | 高級(jí)用戶線接口電路 |
| 文件頁數(shù)： | 15/48頁 |
| 文件大?。?/td> | 501K |
| 代理商： | AM79C202JC |
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ASLIC/ASLAC Products
15
ELECTRICAL REQUIREMENTS
Power Dissipation
Loop resistance = 0 to
∞
(not including fuse resistors),
2 x 50
fuse resistors, VBAT = QBAT =
–
48 V, VCC =
+5 V. For power dissipation measurements, DC Feed
conditions are programmed as follows:
VAPP (apparent voltage) = 50.2 V
ILA (Active state current limit) = 42.3 mA
ILD (Disable state current limit) = 21.2 mA
RFD (feed resistance) = 807
VAS (anti-sat activate voltage) = 8.2 V
N2 (anti-sat feed resistance factor) = 2
VOFF (longitudinal offset voltage) = 6 V
RTMG (thermal management resistor) = 1200
RREF (reference current setting resistor) = 7.87 k
Thermal Resistance
The junction-to-air thermal resistance of the ASLIC de-
vice in a 32-pin PLCC package will be less than 45
°
C/W.
The junction-to-air thermal resistance of the ASLAC de-
vice in a 32-pin PLCC package will be less than 45
°
C/W.
The junction-to-air thermal resistance of the ASLAC de-
vice in a 44-pin PLCC package will be less than 44
°
C/W.
Table 1. Power Dissipation
Description
Test Conditions
Min
Typ
Max
Unit
ASLIC device power dissipation
Normal polarity
On-hook Disconnect
30
70
mW
On-hook Standby
50
105
On-hook Disable
120
215
On-hook Active
330
450
Off-hook Active R
L
= 294
850
1200
Off-hook Disable R
L
= 600
800
950
ASLAC device power dissipation
MCLK, PCLK = 2.048 MHz
ASLAC device activated
85
110
ASLAC device inactive, MPI Standby
state command issued
22
25
ASLAC device power dissipation
MCLK, PCLK > 2.048 MHz
ASLAC device activated
95
120
ASLAC device inactive, MPI Standby
state command issued
23
26
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