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參數資料
| 型號： | AM79514-2JC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | TELECOM-SLIC, PQCC32 |
| 封裝： | PLASTIC, LCC-32 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 786K |
| 代理商： | AM79514-2JC |
Publication#
18411
Issue Date:
October 1999
Rev:
D
Amendment: /
0
Am79514
Subscriber Line Interface Circuit
DISTINCTIVE CHARACTERISTICS
I
Programmable constant-current feed
I
Programmable loop-detect threshold
I
On-chip switching regulator for low-power
dissipation
I
Polarity reversal feature
I
Optimized for –60 V battery
I
Line feed characteristics independent of
battery variations
I
Two-wire impedance set by single external
impedance
I
Tip Open state for ground-start lines
I
Ring and test relay drivers
I
On-hook transmission
BLOCK DIAGRAM
VTX
RSN
DET
VREG
VBAT
Signal
Transmission
Input Decoder
and Control
Ground-Key
Detector
Ring Relay Driver
Test Relay Driver
Off-Hook
Detector
Power-Feed
Controller
Ring-Trip
Detector
Switching
Regulator
TESTOUT
RINGOUT
RD
RDC
L
Two-Wire
Interface
A(TIP)
HPA
HPB
B(RING)
BGND
DA
DB
CHS QBAT CHCLK
VCC
VEE
AGND/DGND
E1
C4
C2
C3
C1
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| AM79530-2DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
| AM79530-2JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
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