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MC34119P

更新时间： 2024-11-18 12:26:43
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 商用集成电路音频放大器光电二极管
页数 文件大小 规格书
12页 271K
描述
Low Power Audio Amplifier

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中文翻译

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MC34119P 数据手册

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Order this document by MC34119/D  
The MC34119 is a low power audio amplifier intergrated circuit intended  
(primarily) for telephone applications, such as in speakerphones. It provides  
differential speaker outputs to maximize output swing at low supply voltages  
(2.0 V minimum). Coupling capacitors to the speaker are not required. Open  
loop gain is 80 dB, and the closed loop gain is set with two external resistors.  
A Chip Disable pin permits powering down and/or muting the input signal.  
The MC34119 is available in standard 8–pin DIP, SOIC package, and  
TSSOP package.  
LOW POWER  
AUDIO AMPLIFIER  
SEMICONDUCTOR  
TECHNICAL DATA  
• Wide Operating Supply Voltage Range (2.0 V to 16 V), Allows  
Telephone  
Line Powered Applications  
• Low Quiescent Supply Current (2.7 mA Typ) for Battery  
Powered Applications  
• Chip Disable Input to Power Down the IC  
8
1
• Low Power–Down Quiescent Current (65 µA Typ)  
• Drives a Wide Range of Speaker Loads (8.0 Ω and Up)  
• Output Power Exceeds 250 mW with 32 Ω Speaker  
• Low Total Harmonic Distortion (0.5% Typ)  
P SUFFIX  
PLASTIC PACKAGE  
CASE 626  
• Gain Adjustable from <0 dB to >46 dB for Voice Band  
• Requires Few External Components  
8
1
D SUFFIX  
PLASTIC PACKAGE  
CASE 751  
MAXIMUM RATINGS  
Rating  
Value  
–1.0 to +18  
±250  
Unit  
Vdc  
mA  
(SO–8)  
Supply Voltage  
Maximum Output Current at V , V  
8
O1 O2  
1
Maximum Voltage @ V , FC1, FC2, CD  
–1.0, V  
–1.0, V  
+ 1.0  
+ 1.0  
Vdc  
in  
Applied Output Voltage to V , V  
CC  
CC  
when disabled  
DTB SUFFIX  
PLASTIC PACKAGE  
CASE 948J  
O1 O2  
Junction Temperature  
–55, +140  
°C  
(TSSOP)  
NOTE: ESD data available upon request.  
PIN CONNECTIONS  
Block Diagram and Simplified Application  
Rf  
75 k  
CD  
1
2
8
7
V
O2  
6
V
CC  
FC2  
Gnd  
C
0.1  
i
R
3.0 k  
i
FC1  
3
4
6
5
V
CC  
V
in  
4
3
Audio  
Input  
V
–
5
O1  
#1  
FC1  
Speaker  
V
V
+
in  
O1  
4.0 k  
4.0 k  
#2  
C1  
(Top View)  
1.0 µF  
C2*  
5.0  
50 k  
125 k  
–
V
8
1
O2  
µ
F
2
+
ORDERING INFORMATION  
Operating  
FC2  
Chip  
Disable  
50 k  
Bias  
Circuit  
CD  
Temperature Range  
Device  
Package  
MC34119  
7
MC34119P  
MC34119D  
MC34119DTB  
Plastic DIP  
SO–8  
Gnd  
* = Optional  
Differential Gian = 2 x  
T
= –20° to +70°C  
A
R
R
f
i
TSSOP  
This device contains 45 active transistors.  
Motorola, Inc. 1996  
Rev 1  
1234567...12

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