SM6451A Datasheet, PDF (10/13 Pages) Nippon Precision Circuits Inc – Audio Variable Volume IC

SM6451A
+0
−20
−40
−60
−80
−100
−120
−140
−160
0
VIN = 1.2Vrms = 0dB
f = 1kHz
ATT = 0dB
BH window
2k 4k 6k 8k 10k 12k 14k 16k 18k 20k
Freq [Hz]
100
10
1
0.1
0.01
0.001
1k
VIN = 1.2Vrms
f = 1kHz
ATT = 0dB
20kHz LPF
10k
100k
Load resistance [Ω]
Figure 9. FFT plot (ATT = 0dB)
Figure 10. THD + N vs. load resistance
10
8
6
4
2
4.50
AVDD + DVDD
ADRS1 = ADRS2 = 5V
4.75
5.00
5.25
5.50
Supply volutage [V]
10
AVDD + DVDD
ADRS1 = ADRS2 = 5V
8
6
4
2
-50
-25
0
25
50
75
100
Operating temperature [°C]
Figure 11. Current consumption vs. supply voltage Figure 12. Current consumption vs. temperature
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