Datasheet

MAX9788
14V
P-P
, Class G Ceramic Speaker Driver
_______________________________________________________________________________________ 5
POWER CONSUMPTION
vs. OUTPUT VOLTAGE
MAX9788 toc10
OUTPUT VOLTAGE (V
RMS
)
POWER CONSUMPTION (mW)
654321
50
100
150
200
250
300
350
0
07
V
CC
= 5V
f
IN
= 1kHz
1% THD+N
STARTUP WAVEFORM
MAX9788 toc11
10ms/div
SHDN
5V/div
OUT+ - OUT-
500mV/div
SHUTDOWN WAVEFORM
MAX9788 toc12
10ms/div
SHDN
5V/div
OUT+ - OUT-
500mV/div
Typical Operating Characteristics (continued)
(V
CC
= V
CPVDD
= V
SHDN
= 3.6V, V
GND
= V
CPGND
= 0V, R
IN+
= R
IN-
= 10kΩ, R
FB+
= R
FB-
= 10kΩ, R
FS
= 100kΩ, C1 = 4.7µF, C2 =
10µF, Z
L
= 1µF + 10Ω; load terminated between OUT+ and OUT-, unless otherwise stated; T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Notes 1, 2)
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9788 toc15
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (μA)
5.55.04.0 4.53.53.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
2.5 6.0
SUPPLY CURRENT
vs. OUTPUT VOLTAGE
MAX9788 toc16
OUTPUT VOLTAGE (V
RMS
)
SUPPLY CURRENT (mA)
6
4
5
3
2
107
10
20
30
40
50
60
70
0
V
CC
= 5V
f
IN
= 1kHz
CLASS G OUTPUT WAVEFORM
MAX9788 toc13
200μs/div
OUT+ - OUT-
10V/div
OUT-
5V/div
OUT+
5V/div
1% THD+N
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9788 toc14
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.55.04.0 4.53.53.0
4
6
8
2
10
12
0
2.5 6.0