SM6451B Datasheet, PDF (10/12 Pages) Nippon Precision Circuits Inc – Audio Variable Volume IC

SM6451B
-40
-60
-80
-100
-120
-140
20
100
VIN=0.8Vrms
ATT=0dB
1k
10k
Frequency(Hz)
100k 200k
Figure 9. Crosstalk frequency response
+0
-20
VIN=0.8Vrms=0dBr
f=1kHz
ATT=0dB
BH Window
-40
-60
-80
-100
-120
-140
0 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k
Frequency(Hz)
Figure 10. FFT spectrum
100
10
1
0.1
0.01
0.001
1
6
VIN=0.8Vrms
f=1kHz
ATT=0dB
20kHz LPF
5
4
3
2
1
10
Load Resistance(kΩ)
0
100
2.4
AVDD+DVDD
ADRS1=ADRS2=0V
2.7
3
3.3
3.6
Power Supply(V)
Figure 11. THD + N vs. load resistance
Figure 12. Current consumption vs. supply voltage
6
5
4
VDD=3.3V
3
VDD=3.0V
2
VDD=2.7V
1
0
-50
-25
AVDD+DVDD
ADRS1=ADRS2=0V
0
25
50
75
100
Operating Temperature(°C)
Figure 13. Current consumption vs. operating
temperature
NIPPON PRECISION CIRCUITS INC.—10