cxa2074q Sony Electronics, cxa2074q Datasheet - Page 10

• Manufacturer Part Number: cxa2074q
• Description: Us Audio Multiplexing Decoder
• Manufacturer: Sony Electronics

QFP SDIP
26
27
28
30
Pin No.
28
29
30
31
VE
VEWGT
VETC
VEOUT
Symbol
voltage
4.0V
4.0V
1.7V
4.0V
Pin
(27)
29
(26)
28
147
580
580
(30)
31
147
4
Equivalent circuit
4k
Vcc
50µ
4
8k
580
580
– 10 –
10k
20k
5P
7.5k
30k
7.5µ
8µ
4V
Vcc
V
CC
Vcc
(28)
2.9V
30
36k
4k
50µ
Variable de-emphasis
integrating pin.
(Connect a 2700pF capacitor
and a 3.3k resistor in series
between this pin and GND.)
Weight the variable
de-emphasis control
effective value detection
circuit.
(Connect a 0.047µF
capacitor and a 3k resistor
in series between this pin
and GND.)
Determine the restoration
time constant of the variable
de-emphasis control
effective value detection
circuit.
(The specified restoration
time constant can be
obtained by connecting a
3.3µF capacitor between this
pin and GND.)
Variable de-emphasis output
pin.
(Connect a 4.7µF non-polar
capacitor between Pins 31
(30) and 32 (31).)
Description
CXA2074Q/S