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PBL38650/2QNS

更新时间： 2024-11-12 15:47:31
品牌 Logo 应用领域
爱立信 - ERICSSON 电信电信集成电路
页数 文件大小 规格书
16页 138K
描述
SLIC, Bipolar, PQCC28, PLASTIC, LCC-28

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中文翻译

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PBL38650/2QNS 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：QLCC包装说明：QCCJ,
针数：28Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.09
Is Samacsys：NJESD-30 代码：S-PQCC-J28
长度：11.505 mm功能数量：1
端子数量：28最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：4.57 mm
标称供电电压：5 V表面贴装：YES
技术：BIPOLAR电信集成电路类型：SLIC
温度等级：COMMERCIAL端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：11.505 mm
Base Number Matches：1

PBL38650/2QNS 数据手册

 浏览型号PBL38650/2QNS的Datasheet PDF文件第2页浏览型号PBL38650/2QNS的Datasheet PDF文件第3页浏览型号PBL38650/2QNS的Datasheet PDF文件第4页浏览型号PBL38650/2QNS的Datasheet PDF文件第5页浏览型号PBL38650/2QNS的Datasheet PDF文件第6页浏览型号PBL38650/2QNS的Datasheet PDF文件第7页 
June 1999  
PBL 386 50/2  
Subscriber Line  
Interface Circuit  
Description  
Key Features  
The PBL 386 50/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated • 24-pin SSOP package  
circuit for use in Central Office Metering applications and other telecommunications  
equipment. The PBL 386 50/2 has been optimized for low total line interface cost and  
headroom for 2.2 Vrms metering  
a high degree of flexibility in different applications.  
• Programmable two-wire signal  
• High and low battery with automatic  
The PBL 386 50/2 emulates resistive loop feed, programmable between 2x50 Ω  
switching  
and 2x900 Ω, with short loop current limiting adjustable to max 45 mA. In the current  
• Only +5 V feed in addition to battery  
limited region the loop feed is nearly constant current with a slight slope  
corresponding to 2x30kΩ.  
• Selectable transmit gain (0.5x or 0.25x)  
A second, lower battery voltage may be connected to the device to reduce short  
loop power dissipation. The SLIC automatically switches between the two battery  
supply voltages without need for external components or external control.  
The SLIC incorporates loop current, ground key and ring trip detection functions.  
The PBL 386 50/2 is compatible with both loop and ground start signaling.  
Two- to four-wire and four- to two-wire voice frequency (VF) signal conversion is  
accomplished by the SLIC in conjunction with either a conventional CODEC/filter or  
with a programmable CODEC/filter, e.g. SLAC, SiCoFi, Combo II. The programmable  
two-wire impedance, complex or real, is set by a simple external network.  
Longitudinal voltages are suppressed by a feedback loop in the SLIC and the  
longitudinal balance specifications meet Bellcore TR909 requirements.  
The PBL 386 50/2 package options are 24-pin SSOP, 24-pin SOIC or 28-pin PLCC.  
• 70 mW on-hook power dissipation in  
active state  
• On-hook transmission  
• Long loop battery feed tracks Vbat for  
maximum line voltage  
• No power-up sequence  
• 43V open loop voltage @  
-48V battery feed  
• Constant loop voltage for line leakage  
<5 mA (RLeak ~ >10 kΩ @ -48V)  
• Full longitudinal current capability  
during on-hook state  
• Analog over temperature protection  
permits transmission while the  
protection circuit is active  
• Line voltage measurement  
• Polarity reversal  
Ring Relay  
RRLY  
Driver  
• Ground key detector  
DT  
C1  
Ring Trip  
Comparator  
• Tip open state with ring ground  
detector  
DR  
TIPX  
RINGX  
HP  
C2  
Input  
Decoder  
and  
C3  
Ground Key  
Detector  
Control  
DET  
POV  
PSG  
PLC  
Line Feed  
Controller  
and  
Longitudinal  
Signal  
VCC  
Two-wire  
Interface  
PBL 386 50/2  
PBL  
Suppression  
LP  
386 50/2  
VBAT2  
VBAT  
PLD  
REF  
Off-hook  
Detector  
PBL 386 50/2  
AGND  
BGND  
VTX  
RSN  
VF Signal  
Transmission  
24-pin SOIC, 24-pin SSOP, 28-pin PLCC  
PTG  
Figure 1. Block diagram.  
1
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中文翻译

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