FAB2210 Datasheet, PDF (5/35 Pages) Fairchild Semiconductor – Audio Subsystem with Class-G Headphone and 3.3W Mono Class-D Speaker with Dynamic Range Compression

Electrical 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.
Symbol
Parameter
I_CC
Current Consumption
V_OS
Output Offset Voltage
PSRR
Power-Supply Rejection
Ratio
P_OUT Output Power
THD+N
Total Harmonic Distortion
Plus Noise
SNR Signal-to-Noise Ratio
Class-D Frequency
Efficiency
DC Detect Voltage
t_DCERR DC Detect Time
Single-Ended Output
Impedance
Condition
SP_NG_RAT=001
Volume=0dB
SV_DD
DV_DD
200mV_pk-pk Ripple on
SV_DD,
SP_NG_RAT=001
f=217Hz
f=1KHz
f=20KHz
200mV_pk-pk Ripple on
SV_DD
f=217Hz
f=1KHz
f=20KHz
THD+N < 10%, SV_DD=5.0V,
Z_SPK=4Ω + 33µH
THD+N < 1%, SV_DD=5.0V,
Z_SPK=4Ω + 33µH
THD+N < 10%, SV_DD=4.2V
THD+N < 1%, SV_DD=4.2V
THD+N < 10%, SV_DD=3.6V
THD+N < 1%, SV_DD=3.6V
P_OUT=0.7W, SV_DD=4.2V
P_OUT=0.7W, SV_DD=3.6V
A-wt, P_OUT=700mW
A-wt, P_OUT=700mW, SV_DD=4.2V
Spread Spectrum
Fixed Frequency
P_OUT=720mW
Absolute Value, Measured
Differentially Across SOUT+ and
SOUT-
DCERR_TIME=10
DCERR_TIME=01
DCERR_TIME=00
Amp. Off, SP_HIZ=0, f < 40KHz
OTP_ERR=1, f < 40KHz
DC_ERR=1, f < 40KHz
Amp. Off, SP_HIZ=1, f < 40KHz
OCP_ERR=1, f < 40KHz
Min.
Typ.
2.7
1.6
±0.4
70
70
63
74
70
44
3.3
2.6
1.27
1.00
0.92
0.73
0.04
0.17
97
97
300
300
91
1.5
15
5
2
2
2
2
35
2
Max. Unit
mA
mV
dB
W
%
dB
KHz
%
V_pk
ms
kΩ
© 2011 Fairchild Semiconductor Corporation
FAB2210 • Rev. 1.1.1
5
www.fairchildsemi.com