Rainbow Electronics MAX9755 - Manual (Page 7)

Typical Operating Characteristics (continued)
(Measurement BW = 22Hz to 22kHz, T
A
= +25°C, unless otherwise noted.)
MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
_______________________________________________________________________________________ 7
OUTPUT POWER
vs. LOAD RESISTANCE (SPEAKER MODE)
MAX9750/51 toc10
LOAD RESISTANCE (Ω)
OUTPUT POWER (W)
10
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
1 100
THD+N = 10%
THD+N = 1%
OUTPUT POWER
vs. LOAD RESISTANCE (SPEAKER MODE)
MAX9750/51 toc11
LOAD RESISTANCE (Ω)
OUTPUT POWER (W)
3.0
0
0.5
1.0
1.5
2.0
2.5
1 10 100
THD+N = 10%
THD+N = 1%
V CC = 5V
f = 1kHz
A
V = 10.5dB
MAX9750C
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9750/51 toc12
OUTPUT POWER (W)
POWER DISSIPATION (W)
3 2 1
1
2
3
4
5
0
0 4
R L = 4Ω
R L = 8Ω
V DD = 5V
f = 1kHz
P
OUT = P OUTL + P OUTR
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9750/51 toc13
OUTPUT POWER (W)
POWER DISSIPATION (mW)
3.5 3.0 2.5 2.0 1.5 1.0 0.5
1
2
3
4
5
0
0 4.0
R L = 4Ω
R
L
= 8Ω
V DD = 5V
f = 1kHz
P
OUT
= P
OUTL
+ P
OUTR
MAX9750C
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (SPEAKER MODE)
MAX9750/51 toc14
FREQUENCY (Hz)
PSRR (dB)
10k 1k 100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 100k
V RIPPLE = 200mV P-P
A V = 10.5dB
OUTPUT REFERRED
0
-120
10 1k 10k 100 100k
CROSSTALK vs. FREQUENCY
(SPEAKER MODE)
MAX9750/51 toc15
FREQUENCY (Hz)
CROSSTALK (dB)
-100
-110
-80
-90
-60
-70
-40
-50
-20
-10
-30
V CC = 5V
V RIPPLE = 200mV P-P
R L = 4Ω
LEFT TO RIGHT
RIGHT TO LEFT
TURN-ON RESPONSE
(SPEAKER MODE)
MAX9750/51 toc16
20ms/div
SHDN
5V/div
2V/div
100mV/div
OUT_+
AND
OUT_-
OUT_+
- OUT_-
R L = 8Ω