MAX9730 Maxim Integrated Products, MAX9730 Datasheet - Page 6

• Manufacturer Part Number: MAX9730
• Description: Class G Power Amplifier
• Manufacturer: Maxim Integrated Products

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2.4W, Single-Supply, Class G Power Amplifier
(V
10µF, R
unless otherwise noted. Typical values are at T
6
6
CC
2, 5, 6, 8, 11, 17,
19, 23, 25, 28
_______________________________________________________________________________________
_______________________________________________________________________________________
= CPV
TQFN
14, 22
15, 21
OUT+ - OUT-
L
EP
10
12
13
16
18
20
24
26
27
= 8Ω; speaker load resistors (R
1
3
4
7
9
10V/div
DD
5V/div
5V/div
OUT+
OUT-
= SHDN = 3.6V, GND = CPGND = 0V, R
PIN
CLASS G OUTPUT WAVEFORM
D1, D5
C2, C4
UCSP
B2
A2
A3
A4
A5
B5
B4
C5
D4
D3
D2
C1
B1
A1
—
—
200μs/div
L
) are terminated between OUT+ and OUT-, unless otherwise stated; T
1% THD+N
MAX9730 toc17
A
CPGND
CPV
NAME
SHDN
OUT+
OUT-
Typical Operating Characteristics (continued)
SV
PV
= +25°C.) (Notes 1, 2)
GND
N.C.
C1N
C1P
FB+
V
FB-
IN+
IN-
FS
EP
CC
SS
SS
DD
IN+
= R
Shutdown
No Connection. No internal connection.
Charge-Pump Flying Capacitor, Positive Terminal. Connect a 4.7µF
capacitor between C1P and C1N.
Charge-Pump Positive Supply
Negative Amplifier Feedback
Negative Amplifier Input
Positive Amplifier Input
Positive Amplifier Feedback
Charge-Pump Frequency Set. Connect a 100kΩ resistor from FS to
GND to set the charge-pump switching frequency.
Supply Voltage. Bypass with a 10µF capacitor to GND.
Amplifier Negative Power Supply. Connect to PV
Negative Amplifier Output
Ground
Positive Amplifier Output
Charge-Pump Output. Connect a 10µF capacitor between PV
CPGND.
Charge-Pump Flying Capacitor, Negative Terminal. Connect a 4.7µF
capacitor between C1N and C1P.
Charge-Pump Ground. Connect to GND.
Exposed Pad. Connect the TQFN EP to GND.
IN-
= 10kΩ, R
FB+
= R
FB-
20
18
16
14
12
10
8
6
4
2
0
= 10kΩ, R
10
FUNCTION
FREQUENCY RESPONSE
100
FS
FREQUENCY (Hz)
= 100kΩ, C1 = 4.7µF, C2 =
1k
Pin Description
SS
A
10k
.
= T
P
OUT
MIN
= 1W
100k
to T
SS
MAX
and
,