CXA1998 SONY [Sony Corporation], CXA1998 Datasheet - Page 8

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

No.
Pin
36
37
48
38
47
39
46
RFC
IREF
FP CAL
PB OUT2
PB OUT1
PB FB22
PB FB21
Symbol
voltage
8.0V
1.2V
2.8V
2.8V
DC
I/O
—
—
—
O
resistance
147Ω
—
—
—
I/O
38
47
36
GND
39
46
48
37
GND
V
Vcc
GND
GND
147
V
CC
Vcc
500
500
CC
– 8 –
147
3
6
147
147
Equivalent circuit
2
GND
3
3
15p
7k
3
GND
2k
3
4
GND
To each RFS
250
GND
V
Vcc
2k
CC
Vcc
RFS
4
Connects a resistor
and capacitor for
obtaining stable
voltage with power
supply ripple rejected.
Connects a resistor
(12kΩ) for determining
equalizer gains.
Connects a resistor for
determining the high-
band peak frequency
of recording equalizer.
Reference setting
resistance is 27kΩ.
Playback equalizer
output.
Connects a capacitor
for determining
playback equalizer
time constants, such
as 120µs and 70µs.
Description
CXA1998AQ