SM6453AB_02 Datasheet, PDF (18/19 Pages) Nippon Precision Circuits Inc – 3-wire Serial Data Volume Control for Headphone Amplifier IC

SM6453AB
+20
BB2
+15
+10
BB1
+5
+0
BB OFF
–5
–10
–15
20
50 100 200
500 1k
2k
Hz
5k 10k 20k
Figure 18. Frequency response vs. Bass boost
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
1.5
2.0
2.5
3.0
3.5
4.0
supply voltage:VDD1 [V]
Figure 19. AGC level vs. Supply voltage
0
–10
–20
–30
–40
BEEPI = 2.0VP-0
–50
–60
1.5
2.0
2.5
3.0
3.5
4.0
supply voltage:VDD1 [V]
Figure 20. Beep sound output level vs. Supply
voltage
–40
–50
–60
–70
–80
–90
–100
–110
0
VDD1 = 3.6V
VDD1 = 1.8V
0.5
1.0
1.5
2.0
2.5
3.0
3.5 4.0
BEEPI level [VP-O]
Figure 21. Beep sound output level vs. Beep input
level
NIPPON PRECISION CIRCUITS INC.—18