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PDF ( 数据手册 , 数据表 ) L3281AD1

零件编号 L3281AD1
描述 LOW VOLTAGE TELEPHONE SPEECH CIRCUITS
制造商 STMicroelectronics
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L3281AD1 数据手册, 描述, 功能
L3281
LOW VOLTAGE TELEPHONE SPEECH CIRCUITS
PRELIMINARY DATA
OPERATION DOWN TO 1.6V / 6.5mA
DTMF & BEEP TONE INPUTS
EXTERNAL MUTING FOR EARPHONE AND
MICROPHONE
SUITABLE FOR DYNAMIC EARPHONE AND
DYNAMIC OR ELECTRET MICROPHONE
AGC CONTROL ON BOTH SENDING AND
RECEIVING
DIP14
SO14
DESCRIPTION
The L3281 is an electronic speech circuit devel-
oped to replace hybrid circuits in telephone sets
that can be operated in parallel with other
phones.
BLOCK DIAGRAM
ORDERING NUMBERS:
L3281AB
L3281AD1
June 1993
1/10
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.







L3281AD1 pdf, 数据表
L3281
DIP14 PACKAGE MECHANICAL DATA
DIM.
a1
B
b
b1
D
E
e
e3
F
I
L
Z
MIN.
0.51
1.39
1.27
mm
TYP.
0.5
0.25
8.5
2.54
15.24
3.3
MAX.
1.65
20
7.1
5.1
2.54
MIN.
0.020
0.055
0.050
inch
TYP.
0.020
0.010
0.335
0.100
0.600
0.130
MAX.
0.065
0.787
0.280
0.201
0.100
8/10














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