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) = 4.0~1.
Quad Preamplifier
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
Block Diagram
TA8189N
2 2002-10-30
Terminal Explanation
Terminal No.
Symbol
1 Tape A in (ch1)
24 Tape A in (ch1)
2 Tape B in (ch2)
23 Tape B in (ch2)
3 PB NF (ch1)
22 PB NF (ch2)
Function
Tape play back input (play)
Tape play back input (play / rec)
Tape play back NF
4 / 21
Metal out
Metal EQ switch
5 Pre out (ch1) 20 Pre out (ch2)
Play back amp output
6 Mix out 7 GND
8
Metal / normal SW
Mixing output
GND
Change over switch for metal mode and normal mode.
TA8189N
Equivalent Circuit
—
3 2002-10-30
Terminal No.
Symbol
9 Rec out (ch1)
16 Rec out (ch2)
10 Rec NF (ch1) 15 Rec NF (ch2) 11 Rec in (ch1) 14 Rec in (ch2) 12 GND
Function Recording amp output
Recording amp NF Recording amp input GND
13 ALC T.C
Automatic level control (ALC) time constant terminal
TA8189N
Equivalent Circuit
—
17 CG det.
NF charge up circuit switching terminal
4 2002-10-30
Terminal No.
Symbol
Function
19
Tape A / tape B SW
Pl.