cxa2561q Sony Electronics, cxa2561q Datasheet - Page 18

• Manufacturer Part Number: cxa2561q
• Description: Dolby B-c Type Noise Reduction System With Playback Equalizer Amplifier
• Manufacturer: Sony Electronics

Frequency response for signal and blank detection level
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–40
–45
–50
–55
–60
–65
–0
0
Crosstalk between channels (1ch
Blank detection level
Blank detection level
V
Input : PBFIN1
Output : LINEOUT2
(LINEOUT1 level = 0dBm)
NR OFF
V
R
CC
CC
L
= 2.7k
Ripple rejection ratio (PBOUT)
= 8.0V
= 8.0V
100
100
Signal detection level
100
V
Input : TAPEIN1
G1 : R = 39k , C = 4.7nF
G2 : R = 3.9k , C = 0.47µF
CC
Frequency [Hz]
= 8.0V
Signal detection level
Frequency [Hz]
Frequency [Hz]
1k
1k
1k
Ta = 25°C
Ta = 25°C
Ta = 25°C
10k
G1
G2
10k
10k
2ch)
– 18 –
PBREF
47µ
–25
–30
–35
–40
–45
–50
–55
Fig. 7 Measurement circuit for crosstalk
PBREF
PBFIN
V
R
680
between channels
CC
L
270
Ripple rejection ratio (LINEOUT)
= 2.7k
PBFB
= 8.0V
100
PBTC
Frequency [Hz]
300k
PBOUT
7k
NR B
1k
0.1µ
NR OFF
TAPEIN
Ta = 25°C
24dB
10k
NR C
CXA2561Q
LINEOUT
2.2µ