CXA1998 SONY [Sony Corporation], CXA1998 Datasheet - Page 3

• Manufacturer Part Number: CXA1998
• Description: Recording/Playback Equalizer Amplifier
• Manufacturer: SONY [Sony Corporation]

Pin Description
No.
Pin
1
2
3
4
A EQ
B EQ
AGC TC
GP CAL
Symbol
(OPEN)
voltage
1.2V
2.5V
0.0V
DC
—
I/O
—
—
I
I
resistance
53kΩ
—
—
—
I/O
3
GND
V
2
CC
4
147 50k
GND
V
GND
1
V
– 3 –
CC
GND
CC
Vcc
(Ta = 25°C, V
200
Equivalent circuit
147
5k
147
GND
2
147
5k
2
2
500
500
GND
GND
CC
30k
100k
GND
2
5k
= 8V, V
V
Vcc
CC
V
200
CC
4
V
DD
CC
= 5V, no signal, RESET ON)
Connects a resistor
for determining the
high-band peak gain
of recording equalizer.
Reference setting
resistance is 27kΩ.
Deck A equalizer
switch.
Deck B equalizer
switch.
Connects a resistor
and capacitor for
determining AGC
attack/recovery time
constants.
Low: 120µs EQ
High: 70µs EQ
Low: NORMAL TAPE,
Medium: Cro
High: METAL TAPE,
Description
120µs EQ
70µs EQ
70µs EQ
CXA1998AQ
2
TAPE,