cxa1897q Sony Electronics, cxa1897q Datasheet - Page 6

• Manufacturer Part Number: cxa1897q
• Description: Dolby B Type Noise Reduction System With Recording/playback Equalizer
• Manufacturer: Sony Electronics

Pin
No.
11 D L OUT1
26 D L OUT2
12 D TC1
25 D TC2
13 D R OUT1
24 D R OUT2
14 REC IN1
23 REC IN2
Symbol
DC
voltage
4.0V
0.3V
4.0V
4.0V
I/O
—
O
O
I
I/O
resistance
147
147
50k
—
12
25
GND
14
23
13
24
Vcc
11
26
GND
GND
147
Vcc
Vcc
GND
Vcc
2
147
Equivalent circuit
147
147
10
50k
20k
700k
—6—
2
VGS
10
300
300
2
GND
GND
200
200
GND
Vcc
GND
Vcc
VGS
6k
10k
13k
Vcc
1.8k
23k
Vcc
Dolby NR line (decoding)
output pin.
Connects the capacitors
(0.1µF) which determine the
time constants of the input
signal level detector.
Dolby NR recording
(encoding) output pin.
Recording equalizer input pin.
Description
CXA1897Q