CXA2561Q Datasheet, PDF (18/20 Pages) Sony Corporation – Dolby B-C Type Noise Reduction System with Playback Equalizer Amplifier

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