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AM79C202 PDF预览

AM79C202

更新时间: 2024-01-10 01:35:44
品牌 Logo 应用领域
其他 - ETC 电信集成电路PC
页数 文件大小 规格书
48页 465K
描述
Advanced Subscriber Line Interface Circuit

AM79C202 技术参数

生命周期:Transferred包装说明:QCCJ,
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.72JESD-30 代码:S-PQCC-J44
功能数量:1端子数量:44
封装主体材料:PLASTIC/EPOXY封装代码:QCCJ
封装形状:SQUARE封装形式:CHIP CARRIER
认证状态:Not Qualified表面贴装:YES
电信集成电路类型:PCM CODEC端子形式:J BEND
端子位置:QUADBase Number Matches:1

AM79C202 数据手册

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Am79213/Am79C203/031  
Advanced Subscriber Line Interface Circuit (ASLIC™) Device  
Advanced Subscriber Line Audio-Processing Circuit  
(ASLAC™) Device  
— Digital I/O pins  
DISTINCTIVE CHARACTERISTICS  
— A-law/µ-law selection  
Performs all of the functions of a codec-filter  
Linear data available on PCM ports for custom  
compression and expansion  
Single channel architecture  
Performs Battery-feed, Ring-trip, Signaling,  
Coding, Hybrid and Test (BORSCHT) functions  
Compatible with inexpensive protection  
networks. Accommodates low tolerance fuse  
resistorswhilemaintaininglongitudinalbalance  
to Bellcore specifications.  
Single hardware design meets multiple country  
requirements through software programming  
Standard microprocessor interface  
Power/Service Denial state  
Small physical size  
Industry standard PCM interface with full-time  
slot assignment  
Integrated ring trip function  
Monitoroftwo-wireinterfacevoltageandcurrent  
for subscriber line diagnostics  
Four relay drivers with built-in energy  
absorption zener diodes  
Low idle power per line  
Synchronized ring relay operation: zero volts ac  
on, zero current off  
On-hook transmission  
Only battery and +5 V supplies needed  
SoftwareenabledNormalorAutomaticRing-Trip  
state  
Exceeds LSSGR and CCITT central office  
requirements  
On-chip 12 kHz and 16 kHz metering generation  
with on and off meter pulse shaping  
Off-hook and ground-key detectors with  
programmable thresholds  
Supports loop-start and ground-start signaling  
Programmable line feed characteristics  
independent of battery voltage  
0°C to +70°C commercial operation guaranteed  
by production testing  
Built-in voice path test modes  
–40°C to +85°C temperature range operation  
available  
Analog and digital hybrid balance capability  
Adaptive hybrid balance capability  
Linear power feed with power management and  
thermal shutdown features  
Abrupt and smooth polarity reversal  
Power-cross detection in Ringing and Non-  
ringing states  
Software programmable  
— DC loop feed characteristics and current limit  
— Loop supervision detection thresholds  
— Off-hook detect debounce interval  
Two-wire AC impedance  
Transhybrid balance  
Transmit and receive gains  
— Equalization  
Publication# 080160 Rev: D Amendment: /0  
Issue Date: April 2000  

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