FAB2210 Datasheet, PDF (9/35 Pages) Fairchild Semiconductor – Audio Subsystem with Class-G Headphone and 3.3W Mono Class-D Speaker with Dynamic Range Compression

Typical Performance Characteristics
Speaker Amplifier
Unless otherwise noted: audio BW=22Hz to 20KHz, f_IN=1KHz, DIFA=1, DIFB=0, HP_AMIX=0, HP_BMIX=0,
SP_AMIX=1, SP_BMIX=0, unused inputs are AC grounded, DRC is off, preamplifier gains=0dB, headphone
volume=0dB, headphone amplifier gain=0dB, speaker volume=0dB, SP_GAIN=00, edge-rate control is on, spread
spectrum is on, HP_NG_RAT=000, SP_NG_RAT=000, SRST=0, SDA and SCL pull-up voltage=DV_DD, Z_SPK
=8Ω+33µH, R_HP=32Ω, HP_HIZ=0, SV_DD=3.6V, DV_DD=1.8V, and T_A=25°C.
10
f = 1KHz
Z_SPK = 8ohm+33uH
SVDD=2.8V
SVDD=3.6V
1
SVDD=4.2V
SVDD=5.0V
10
P_OUT = 500mW
Z_SPK = 8ohm+33uH
1
0.1
0.1
0.01
0.001
0.01
0.1
1
Output Power (W)
Figure 10. THD+N vs. Output Power
0.01
10
0.01
0.1
1
10
100
Frequency (KHz)
Figure 11. THD+N vs. Frequency
2.2
2
f = 1KHz
Z_SPK = 8ohm+33uH
1.8
THD+N = 10%
1.6
THD+N = 1%
1.4
1.2
1
0.8
0.6
0.4
0.2
0
2.5
3
3.5
4
4.5
5
5.5
SVDD Voltage (V)
Figure 12. Output Power vs. Supply Voltage
100
90
80
70
60
50
40
30
f = 1KHz
20
Z_SPK = 8ohm+33uH
10
SVDD = 3.6V
SVDD = 4.2V
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Output Power (W)
Figure 13. Efficiency vs. Output Power
100
90
Inputs AC Grounded
V_RIPPLE = 200mV_PP
80 ^{SP_NG_RAT = 000}
70
60
50
40
30
20
10
0
0.01
0.1
1
10
Frequency (KHz)
Figure 14. PSRR vs. Frequency
10
BW = <10Hz to 80KHz
P_OUT = 700mW
5
Cin = 1.0uF
Cin = 0.1uF
0
-5
-10
-15
100
0.01
0.1
1
10
100
Frequency (KHz)
Figure 15. Frequency Response
© 2011 Fairchild Semiconductor Corporation
FAB2210 • Rev. 1.1.1
9
www.fairchildsemi.com