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PDF TA8189N Data sheet ( Hoja de datos )

Número de pieza TA8189N
Descripción Quad Preamplifier
Fabricantes Toshiba 
Logotipo Toshiba Logotipo



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TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8189N
Quad Preamplifier For Double Cassette Tape Recorder
TA8189N
The TA8189N is a quad pre amplifier designed for use in record /
play back amplifier. It is suitable for double cassette tape
recorder.
Features
· Play back amp
· Built in input select switch.
· Built in equalizer control switch.
· Mixing output, for music selection.
· Recording amp
· Built in ALC detector circuit.
· Operating supply voltage range: VCC (opr) = 4.0~13.5V (Ta = 25°C)
Weight: 1.2g (typ.)
1 2002-10-30

1 page




TA8189N pdf
Terminal
No.
Symbol
Function
19
Tape A / tape B
SW
Play back AMP input
selector
TA8189N
Equivalent Circuit
Application Information And Application Method
1. Input level of play amp.
In case that input voltage (Vin > 0.0245Vrms (-30dBm)) is applied to A-head and B-head at same time on a set,
use A-head for reproducing only and, B-head for recording or reproducing.
In case that the over-voltage is applied to A-head and B-head at same time, the transistor Q3, Q4 are made a
saturation condition and NF condenser is discharged by base-current of Q3, Q4 and the output DC voltage of
pin 3 / 22 are raised.
In case of the high input, use B-head, because of building in the diode against saturation on Q4.
2. Power source line
In case of including the ripple on the power source line, stabilize by using a transistor as following figure.
5 2002-10-30

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TA8189N arduino
TA8189N
11 2002-10-30

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