MAX9730(2006) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX9730 Datasheet PDF : 14 Pages
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2.4W, Single-Supply, Class G Power Amplifier
Typical Operating Characteristics (continued)
(VCC = CPVDD = SHDN = 3.6V, GND = CPGND = 0V, RIN+ = RIN- = 10kΩ, RFB+ = RFB- = 10kΩ, RFS = 100kΩ, C1 = 4.7µF, C2 =
10µF, RL = 8Ω; speaker load resistors (RL) are terminated between OUT+ and OUT-, unless otherwise stated; TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
CLASS G OUTPUT WAVEFORM
MAX9730 toc17
OUT+
5V/div
OUT-
5V/div
OUT+ - OUT-
10V/div
200μs/div
1% THD+N
20
18
16
14
12
10
8
6
4
2
0
10
FREQUENCY RESPONSE
POUT = 1W
100
1k
10k
100k
FREQUENCY (Hz)
Pin Description
PIN
TQFN
1
2, 5, 6, 8, 11, 17,
19, 23, 25, 28
3
4
7
9
10
12
13
14, 22
15, 21
16
18
20
24
26
27
EP
UCSP
B2
—
A2
A3
A4
A5
B5
B4
C5
D1, D5
C2, C4
D4
D3
D2
C1
B1
A1
—
NAME
SHDN
N.C.
C1P
CPVDD
FB-
IN-
IN+
FB+
FS
VCC
SVSS
OUT-
GND
OUT+
PVSS
C1N
CPGND
EP
FUNCTION
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 PVSS.
Negative Amplifier Output
Ground
Positive Amplifier Output
Charge-Pump Output. Connect a 10µF capacitor between PVSS and
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.
6 _______________________________________________________________________________________
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