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參數(shù)資料
| 型號(hào)： | AM79M576A |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Metering Subscriber Line Interface Circuit |
| 中文描述： | 計(jì)量用戶線接口電路 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大小： | 252K |
| 代理商： | AM79M576A |
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Publication#
18412
Issue Date:
October 1999
Rev:
D
Amendment: /
0
Am79M576A
Metering Subscriber Line Interface Circuit
DISTINCTIVE CHARACTERISTICS
I
Programmable constant-resistance feed
I
Programmable loop-detect threshold
I
Ground-key detect
I
Performs polarity reversal
I
Ring relay driver
I
Supports 2.2 Vrms metering (12 and 16 kHz)
I
Line feed characteristics independent of battery
variations
I
On-chip switching regulator for low-power
dissipation
I
Two-wire impedance set by single external
impedance
I
Tip Open state for ground-start lines
I
On-hook transmission
BLOCK DIAGRAM
VTX
RSN
DET
VREG
VBAT
Signal
Transmission
Input Decoder
and Control
Ground-Key
Detector
Ring Relay
Driver
Off-Hook Detector
Power-Feed
Controller
Ring-Trip
Detector
Switching
Regulator
RINGOUT/DGND
RD
RDC
L
Two-Wire
Interface
HPA
HPB
BGND
DA
DB
CHS
CHCLK
VEE
AGND/DGND
VCCRING
QBAT
VCC
C1
C2
C3
E0
E1
A(TIP)
B(RING)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79M576A-1 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Metering Subscriber Line Interface Circuit |
| AM79M576A-1JC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Metering Subscriber Line Interface Circuit |
| AM79M576A-2 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Metering Subscriber Line Interface Circuit |
| AM79M576A-2JC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Metering Subscriber Line Interface Circuit |
| AM79M576ADC | 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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