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MC33121P PDF预览

MC33121P

更新时间： 2024-11-24 22:39:55
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 模拟传输接口电池电信集成电路电信电路光电二极管
页数 文件大小 规格书
32页 573K
描述
LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT

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中文翻译

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MC33121P 技术参数

生命周期：Transferred零件包装代码：DIP
包装说明：DIP, DIP20,.3针数：20
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.33Is Samacsys：N
电池馈电：CONSTANT CURRENT电池供电：-21.6 TO -42 V
混合：2-4 CONVERSIONJESD-30 代码：R-PDIP-T20
JESD-609代码：e0长度：26.415 mm
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装等效代码：DIP20,.3封装形状：RECTANGULAR
封装形式：IN-LINE电源：5 V
认证状态：Not Qualified座面最大高度：4.57 mm
子类别：Analog Transmission Interfaces最大压摆率：14 mA
标称供电电压：5 V表面贴装：NO
电信集成电路类型：SLIC温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
宽度：7.62 mmBase Number Matches：1

MC33121P 数据手册

 浏览型号MC33121P的Datasheet PDF文件第2页浏览型号MC33121P的Datasheet PDF文件第3页浏览型号MC33121P的Datasheet PDF文件第4页浏览型号MC33121P的Datasheet PDF文件第5页浏览型号MC33121P的Datasheet PDF文件第6页浏览型号MC33121P的Datasheet PDF文件第7页 
Order this document  
by MC33121/D  
SEMICONDUCTOR TECHNICAL DATA  
Thin Film Silicon Monolithic Integrated Circuit  
P SUFFIX  
PLASTIC PACKAGE  
CASE 738  
20  
The MC33121 is designed to provide the interface between the 4–wire side of  
a central office, or PBX, and the 2–wire subscriber line. Interface functions  
include battery feed, proper loop termination AC impedance, hookswitch  
detection, adjustable transmit, receive, and transhybrid gains, and single/  
double fault indication. Additionally, the MC33121 provides a minimum of 58 dB  
of longitudinal balance (4–wire and 2–wire).  
The transmit and receive signals are referenced to analog ground, while  
digital signals are referenced to digital ground, easing the interface to codecs,  
filters, etc. The 2 status outputs (hookswitch and faults) and the Power Down  
Input are TTL/CMOS compatible. The Power Down Input permits local  
shutdown of the circuit.  
1
FN SUFFIX  
PLCC  
CASE 776  
28  
1
ORDERING INFORMATION  
Internal drivers allow the external loop current pass transistors to be standard  
bipolar transistors (non–Darlington).  
The MC33121 is available in a 20 pin DIP and a 28 pin PLCC surface mount  
package.  
Temperature  
Range  
Device  
Package  
Plastic DIP  
PLCC  
MC33121P  
– 40° to + 85°C  
MC33121FN  
•
•
•
•
•
•
•
•
•
•
•
58 dB Longitudinal Balance Guaranteed; 4–wire and 2–wire  
Transmit, Receive, and Transhybrid Gains Externally Adjustable  
Return Loss Externally Adjustable  
Proper Hookswitch Detection With 30 kΩ Leakage  
Single/Double Fault Indication With Shutdown for Thermal Protection  
Critical Sense Resistors Included Internally  
Standard Power Supplies: – 21.6 V to – 42 V, and + 5.0 V, ± 10%  
On–Hook Transmission  
Power Down Input (TTL and CMOS Compatible)  
Operating Ambient Temperature: – 40°C to + 85°C  
Available in a 20 Pin DIP and 28 Pin PLCC Package  
SIMPLIFIED BLOCK DIAGRAM  
V
CC  
V
V
(+5.0 V)  
DD  
CURRENT  
MIRROR  
CURRENT  
MIRROR  
CURRENT  
MIRROR  
DG  
EP  
BP  
*
(DIG. GND)  
PDI/ST2  
ST1  
–
+
TIP  
CP  
V
V
EE  
*
*
V
HOOK STATUS AND  
FAULT DETECTION  
AND BIAS CONTROL  
AG  
+
–
TSI  
RSI  
(ANA. GND)  
RXI  
CC  
BIAS  
+
–
TXO  
CN  
BN  
–
+
RING  
CURRENT  
CURRENT  
MIRROR  
CURRENT  
MIRROR  
RFO  
CF  
MIRROR  
EN  
V
QB  
*
MC33121  
V
EE  
(BATTERY)  
* Indicates trimmed resistor  
REV 1.0  
4/96  
Motorola, Inc. 1996  
1234567...32

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