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CXA1553M View Datasheet(PDF) - Sony Semiconductor

Part NameDescriptionManufacturer
CXA1553M Dolby B∗ type Noise Reduction System Sony
Sony Semiconductor Sony
CXA1553M Datasheet PDF : 16 Pages
First Prev 11 12 13 14 15 16
CXA1550P, CXA1551M/P, CXA1552M/P, CXA1553M/P
Example of Representative Characteristics
Quiescent current consumption vs. Supply voltage
Encode Mode
6
NR OFF
NR ON
NR × 2
5
Current consumption vs. Input level (CXA1552)
7 Encode Mode
VCC=9V
0dB=Dolby level
NR ON 10kHz
6
NR OFF
NR × 2 10kHz
NR ON 1kHz
NR × 2 1kHz
5
4
5
10
15
20
VCC – Supply Voltage (V)
NR ON encode characteristics
12 VCC=9V
0dB=Dolby level
10
8
–50dB
–40dB
–30dB
6
4
–20dB
2
–10dB
0
0dB
200 500 1k 2k 5k 10k 20k
Frequency (Hz)
Signal handling
Encode Mode A1553 A1552
20
NR OFF
f=1kHz
THD=1%
18
16
A1551
A1550
14
12
10
0
4 6 8 10 12 14 16 18 20 22
VCC – Supply voltage (V)
–12 –8 –4 0 4 8 12
Input level (dB)
Double speed encode boost
12 VCC=9V
0dB=Dolby level
10
8
–50dB
–40dB
–30dB
6
4
–20dB
2
–10dB
0
0dB
500 1k 2k
5k 10k 20k
50k
Frequency (Hz)
Load characteristics (CXA1552)
LINE OUT
10
8
REC OUT
6
4
2
0
Encode Mode
VCC=9V
THD=1%
–2
0dB=0.775Vrms
200 500 1k 2k 5k 10k 20k
RL – Load resistance ()
—11—
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