Datasheet

MAX9705
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
Figure 6. Master-Slave Stereo Configuration
IN+
IN-
OUT+
OUT-
SYNC
1µF
RIGHT-CHANNEL
DIFFERENTIAL
AUDIO INPUT
MAX9705
V
DD
V
DD
PV
DD
IN+
IN-
OUT+
OUT-
SYNC
1µF
LEFT-CHANNEL
DIFFERENTIAL
AUDIO INPUT
MAX9705
V
DD
PV
DD
Figure 7. Master-Slave THD+N
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
OUTPUT POWER (W)
THD+N (%)
0.60.40.2
0.01
0.1
1
10
100
0.001
00.8
V
DD
= 3.3V
SLAVE DEVICE
f
IN
= 1kHz
SYNC = GND (FFM)
R
L
= 8Ω
CROSSTALK vs. FREQUENCY
FREQUENCY (Hz)
CROSSTALK (dB)
10k1k100
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
10 100k
V
DD
= 3.3V
V
IN
= 500mV
P-P
f
IN
= 1kHz
SYNC = GND (FFM)
R
L
= 8Ω
MASTER TO SLAVE
SLAVE TO MASTER
Figure 8. Master-Slave Crosstalk
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