cxa1897q Sony Electronics, cxa1897q Datasheet - Page 20

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

60
50
40
30
20
10
26
24
22
20
18
16
14
12
10
–2
–4
8
6
4
2
0
10
20
8
6
4
2
0
20
20
V
0dB=Dolby Level
V
0dB=NORM-NORM, 315Hz, –30dBm
CC
50
CC
=–10dBm
50
=8V
=8V
NORM-NORM
CrO
METAL-NORM
NORM-HIGH
CrO
METAL-HIGH
(Tape) (Speed)
50
100
2
2
100
Playback equalizer frequency response
-NORM
-HIGH
100
200
Recording equalizer frequency response
200
B type encode characteristics
200
500
500
Frequency (Hz)
Frequency (Hz)
Frequency (Hz)
500
1k
1k
1k
2k
2k
—20—
2k
5k
5k
5k
10k
10k
10k
20k
20k
20k
–40dB
–30dB
–20dB
–10dB
0dB
50k
50k
120 s-NS
120 s-HS
70 s-NS
70 s-HS
100k
4.7
+
0.015
+
M
CXA1897Q