MAX9705 Maxim Integrated Products, MAX9705 Datasheet - Page 14

• Manufacturer Part Number: MAX9705
• Description: 2.3W Ultra-Low-EMI Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products

Figure 6. Master-Slave Stereo Configuration
Figure 7. Master-Slave THD+N
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
14
______________________________________________________________________________________
0.001
0.01
100
0.1
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
0
V
SLAVE DEVICE
f
SYNC = GND (FFM)
R
IN
DD
L
= 1kHz
= 8Ω
= 3.3V
RIGHT-CHANNEL
LEFT-CHANNEL
0.2
DIFFERENTIAL
DIFFERENTIAL
1µF
AUDIO INPUT
1µF
AUDIO INPUT
vs. OUTPUT POWER
OUTPUT POWER (W)
0.4
0.6
V
DD
0.8
V
IN+
IN-
V
IN+
IN-
DD
DD
MAX9705
MAX9705
Figure 8. Master-Slave Crosstalk
SYNC
SYNC
OUT+
OUT+
PV
PV
OUT-
OUT-
DD
DD
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
10
V
V
f
SYNC = GND (FFM)
R
IN
DD
IN
L
= 1kHz
= 8Ω
MASTER TO SLAVE
= 500mV
CROSSTALK vs. FREQUENCY
= 3.3V
100
SLAVE TO MASTER
P-P
FREQUENCY (Hz)
1k
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10k
100k