BA1451F Просмотр технического описания (PDF) - ROHM Semiconductor
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BA1451F Datasheet PDF : 8 Pages
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Audio ICs
!Absolute maximum ratings
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
Power dissipation
Pd
9.0
V
450∗1
mW
Operating temperature
Topr
−25∼+75
˚C
Storage temperature
Tstg
−55∼+125
˚C
∗1 Reduced by 4.5mW for each increase in Ta of 1˚C over 25˚C.
!Recommended operating conditions (Ta=25°C)
Parameter
Power supply voltage
Symbol Min. Typ. Max.
Unit
VCC
3.8
5.0
8.0
V
BA1451F
!Input and output circuits
Pin No.
Function
FM IF amplifier input
1
Connect to an FM ceramic filter.
Internal circuit
VCC 2
Vreg 23
330Ω
1
2
VCC
FM tuning ON level adjustment
3
Connect a resistor from this pin to GND
to set the required ON level for
the tuning indicator.
4
GND
5
FM discriminator
Connect to the discriminator coil.
Tuning indicator
6
Connect to a tuning indicator
display device (eg. LED)
Stereo indicator
7
Connect to a stereo indicator
display device (eg. LED)
GND 4
3
VCC 2
GND 4
5
VCC 2
15kΩ
5pF
GND 4
6/7
GND 4
Quiescent voltage (V)
FM
AM
2.1
2.1
5.0
5.0
0.25
0
0
0
5.0
5.0
−
−
−
−
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