CXA2500M Просмотр технического описания (PDF) - Sony Semiconductor
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CXA2500M Datasheet PDF : 11 Pages
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Dual REC/PB Preamplifier
CXA2500M/N
Description
The CXA2500M/N is a dual recording/playback pre-
amplifier system bipolar IC which has been developed
for the low voltage operating cassette tape recorder.
CXA2500M
24 pin SOP (Plastic)
CXA2500N
24 pin SSOP (Plastic)
Features
• Low quiescent current (VCC = 2V)
PB: ICC = 3.2mA (typ.)
REC: ICC = 5.2mA (typ.)
• Very few external parts
• Built-in Metal/Normal selection switch
• Small switching noise due to internal transient
muting
Applications
3V headphone radio cassette recorders
Structure
Bipolar silicon monolithic IC
Bock Diagram
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
VCC
7
V
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation PD
CXA2500M
600
mW
CXA2500N
470
mW
Operating Conditions
Supply voltage PB VCC 1.2 to 3.5
V
REC VCC 1.6 to 3.5
V
24
23
22
21
20
19
MIC
GCA
AGC
PB
AMP
MIC
6dB
1
2
GCA
22dB
3
AMP
12dB
PB
4
5
6
18
17
16
15
14
13
LINE
REC
PB/
REC
REF
AGC
DET
NORM/
METAL
LINE
–0.3dB
7
8
REC
20.5dB
9
10
TAPE/
TUNER
11
12
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E94806B8Y
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