ba3708f ROHM Co. Ltd., ba3708f Datasheet

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ba3708f

Manufacturer Part Number
ba3708f
Description
Mute Detector Ic For 3v Sets
Manufacturer
ROHM Co. Ltd.
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
ba3708f-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
The BA3708F is a mute detector IC for 3V tape players. When the signal is higher than the input decision level V
longer than the song detect time, a pulse of width T
signal ends. The output is an open collector which enables direct drive of the plunger. A mute function is included which
makes it possible to stop detection.
FApplications
3V tape players
FFeatures
1) Low supply voltage (can be operated at 1.8V; recom-
2) Uses the song detection method to minimize incor-
3) The pulse delay time T
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions
738
Mute detector IC for 3V sets
BA3708F
Audio ICs
mended operating voltage is 2.0 to 5.0V).
rect detection caused by noise between songs.
tect time T
constants.
C
can be set using external CR time
D
, pulse width T
W
, and song de-
W
is output after the pulse delay time T
4) Includes a mute circuit which makes it possible to
5) Built-in output transistor enables direct drive of the
stop song selection.
plunger. (I
O Max
. = 100mA)
D
which begins when the input
IN
and

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ba3708f Summary of contents

Page 1

... Mute detector IC for 3V sets BA3708F The BA3708F is a mute detector IC for 3V tape players. When the signal is higher than the input decision level V longer than the song detect time, a pulse of width T signal ends. The output is an open collector which enables direct drive of the plunger. A mute function is included which makes it possible to stop detection ...

Page 2

... Audio ICs FBlock diagram FElectrical characteristics (unless otherwise noted 25_C and V BA3708F = 3V) CC 739 ...

Page 3

... Audio ICs FMeasurement circuit FApplication example 740 BA3708F Switch operations ...

Page 4

... T when the input signal ends. The values of T determined by the RC time constants of Pin 2 and Pin 1. T (ms) 1 (ms) 1 too IN IN and R connected IN connected to the NF which begins D and T are D W BA3708F 741 ...

Page 5

... The pulse width T W duty cycle is 30%, and drive is possible output current I = 100mA. The output is OFF (high) while the OUT mute function operates. A discharge diode must be add parallel with the plunger solenoid. BA3708F is 200 ms and the ...

Page 6

... Audio ICs BA3708F 743 ...

Page 7

... Audio ICs 744 BA3708F ...

Page 8

... Audio ICs FApplication board pattern and component layout FExternal dimensions (Units: mm) BA3708F 745 ...

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