cxa1898q Sony Electronics, cxa1898q Datasheet - Page 4

• Manufacturer Part Number: cxa1898q
• Description: Recording/playback Equalizer Amplifier
• Manufacturer: Sony Electronics

No.
Pin
10
11
12
13
14
15
16
A EQ
B EQ
RMUTE1 I
R MUTE1
R MUTE2
SPEED
PB MUTE
Symbol
5.0V
(when
reset)
(when
Pin 25
(DATA)
is set to
high)
voltage
(when
open)
2.5V
DC
—
—
I/O
O
I
I
I
resistance
53k
I/O
—
—
—
V
11
DD
12
13
14
15
16
10
GND
V
– 4 –
GND
CC
V
GND
147 50k
V
CC
GND
CC
147
Equivalent circuit
147
GND
5k
4
GND
5k
20k
GND
5k
20k
2
4
GND
50µA
5k
20k
2
2.7V
V
V
CC
V
CC
V
CC
CC
B deck equalizer switch.
Recording mute
ON/OFF switch.
Output for recording
mute ON/OFF switch
control signal.
Outputs D11 from Pin
25 (DATA).
Output for recording/
playback equalizer
speed switch control
signal. Outputs D9 from
Pin 25 (DATA).
Output pin for playback
mute ON/OFF switch
control signal. Outputs
D7 from Pin 25 (DATA).
Connects a resistor to
V
A deck equalizer
switch.
Low: Normal Speed
High: High Speed
DD
Low: Normal Tape,
High: CrO
Medium: Metal Tape,
Low: 120µs EQ
High: 70µs EQ
Low: Mute OFF
High: Mute ON
Fader function is
realized by the
external time
constant circuit.
Connects Pin 13
(RMUTE1).
for Pins 13 to 16.
Description
(1.7 times)
120µs EQ
EQ
70µs EQ
2
Tape, 70µs
CXA1898Q