CXA1734S
Pin
No.
Pin
Symbol
Equivalent circuit
Description
voltage
Vcc
Weight the variable de-
emphasis control effective
value detection circuit.
(Connect a 0.047 µF
capacitor and a 3 kΩ
resistor in series between
this pin and GND.)
2.9V
500
4V
21
21
VEWGT
4.0V
147
500
36k
30k
4k
8k
↓ 8µ
↓ 50µ
Determine the restoration
time constant of the
Vcc
variable de-emphasis
control effective value
detection circuit. The
specified restoration time
constant can be obtained
by connecting a 3.3 µF
capacitor between this pin
and GND.
22
×4
×4
22
VETC
1.7V
20k
4V
↓
50µ
↓
7.5µ
Vcc
Variable de-emphasis
output pin.
5P
500
500
23
23
VEOUT
4.0V
(Connect a 4.7 µF non-
polar capacitor between
Pins 23 and 24.)
10k
VCC
VCA input pin.
47k 47k
Input the variable de-
emphasis output signal
from Pin 23 via a coupling
capacitor.
24
VCAIN
4.0V
20k
VCC
24
—7—
SONY [ SONY CORPORATION ]
