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PBL3726/18ASO PDF预览

PBL3726/18ASO

更新时间: 2024-02-05 19:18:20
品牌 Logo 应用领域
爱立信 - ERICSSON 电信光电二极管电信集成电路
页数 文件大小 规格书
8页 138K
描述
Telephone Speech Circuit, PDSO20, PLASTIC, SO-20

PBL3726/18ASO 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:20
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.83JESD-30 代码:R-PDSO-G20
长度:12.8 mm功能数量:1
端子数量:20最高工作温度:70 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE认证状态:Not Qualified
座面最大高度:2.65 mm标称供电电压:2.2 V
表面贴装:YES电信集成电路类型:TELEPHONE SPEECH CIRCUIT
温度等级:OTHER端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
宽度:7.5 mmBase Number Matches:1

PBL3726/18ASO 数据手册

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March 1996  
PBL 3726/18A  
Universal Speech Circuit  
Description  
Key Features  
PBL 3726/18A is a standard version of the PBL 3726 family of the mask-program-  
mable, monolithic integrated speech circuits for use in electronic telephones.  
It is designed for use with a low impedance microphone. Transmitting and receiv-  
ing gain is regulated with line length. Different regulation for various current feeds  
can be set by external resistors. Typical current feeds as 48 V, 2 x 200 ohm, 48 V  
2 x 400 ohm and 48 V 2 x 800 ohm can be handled. Application dependent param-  
eters such as line balance, side tone level, amplification and frequency response are  
set by external components. Parameters are set independently which means easy  
adoption for various market needs.  
Minimum number of inexpensive  
external components, 7 capacitors  
and 11 resistors.  
Mute function for operation with  
DTMF-generator.  
Transmit and receive gain regulation  
for automatic loop loss compensa-  
tion.  
Extended current and voltage range  
5 - 130 mA, down to 2 V.  
Differential microphone input for  
good balance to ground.  
Balanced receiver output stage.  
Short start-up time.  
Stabilized DC-supply for low current  
CMOS diallers and/or electret  
microphones.  
1
DTMF-input controlled by mute.  
PBL 3726/18  
DTMF  
10  
17  
AD  
AM  
input  
AR  
AT  
12  
13  
Telephone  
line  
18  
DC  
9
+
8
7
6
5
11  
3
2
15 16  
14  
4
Sense Input  
DC output for external  
CMOS device  
Control output  
3
PBL318  
Mute  
(active low)  
1
5
4
2
1 Impedance to line and radio interference suppression.  
2 Transmit gain and frequency response network.  
3 Receive gain and frequency response network.  
4 Side tone balance network.  
PBL3726/18  
5 DC-supply components.  
18-pin plastic DIP  
20-pin plastic SO  
Figure 1. Functional diagram. DIP package.  

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