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PDF GPM8903 Data sheet ( Hoja de datos )

Número de pieza GPM8903
Descripción Low EMI Audio Class D Amplifier
Fabricantes Giant Power Microelectronics 
Logotipo Giant Power Microelectronics Logotipo



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No Preview Available ! GPM8903 Hoja de datos, Descripción, Manual

GPM8903
Non-Clip,Low EMI Audio Class D Amplifier
General Description
Features
The GPM8903 is a Class D amplifiers provide high
performance, thermally efficient amplifier solutions.
The GPM8903 delivers 1*4.5W into a 2Ω load.
An integrated limiting circuit prevents output clipping
distortion, that makes GPM8903 has excellent sound
reproduction and protects small speakers from
transient volt-ages, reduces power dissipation.
The GPM8903 has a 2:1 input MUX for audio source
selection. The MUX was selected by an external pin.
Both input channels have a 32-step Up/Down volume
control.
Filter-less modulation allows the IC to pass EMI limits
with 1m cables using only a low-cost ferritebead and
small-value capacitor on each output.
Built-in fade in and fade out circuit to minimize click-
and-pop noise coming into and out of shutdown.
The GPM8903 features over current protection, short
circuit protection, over temperature protection and
UVLO.
n High Output Power:
4.5W@V =DD 5.0V, RL=2Ω, THD+N=10%
3.0W@V =DD 5.0V, RL=4Ω, THD+N=10%
1.8W@V =DD 5.0V, RL=8Ω, THD+N=10%
n 32-Step Up/Down Volume Control
n 2:1 input MUX for Audio Source Selection
n Low THD+N:
0.07%@V =DD 5.0V, RL=4Ω, Po=1.5W
n Fade-in and Fade-out Function
n Minimized Click-and-Pop Noise
n Thermal Shutdowns
n Under-Voltage-Lockout
n Over-Current Protection
n SOP-16 Pb Free Package
Applications
n Portable Speakers
n Blue Tooth Speakers
n FM System
n Audio System
The GPM8903 is available in SOP16 package.
Typical Application
Giant Power Microelectronics Co., LTD
1

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GPM8903 pdf
GPM8903
Non-Clip,Low EMI Audio Class D Amplifier
Typical Operating Characteristics
At TA=25°C ,VDD=5V,VF =REQ 0V,unless otherwise specified.
THD+N vs Output Power
20
RL=4Ω ,f=1KHz
10
5
2
%1
0.5
0.2
0.1
0.06
1m
2m
5m 10m 20m
50m 100m
W
2 0 0m
500m
1
2
THD+N vs Frequency
10
RL=4Ω,Po=2W
5
2
1
% 0.5
0.2
0.1
0 .05
5 0 .03
20
50 100 200
500
Hz
1k
2k
5 k 10 k 20 k
+0
-5
-10
-15
-20
-25
-30
-35
d -40
B
-45
-50
-55
-60
-65
-70
-75
-80
20
PSRR
T
Vpp=200mV, Av=20dB
50 100 200
500
Hz
1k
2k
Noise Floor
+0
-10 VDD=2.5V/3.6V/5.0V
-20
-30
-40
-50
d
B
r -60
A -70
-80
-90
- 100
- 110
5k 10 k 20 k
- 120
20
50 100 200
500
Hz
1k
2k
5 k 10 k 20 k
Quiescent Current vs Supply Voltage
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
23456
Frequency vs Supply Voltage
256
254
252
250
248
246
244
242
240
238
2 2.5 3 3.5 4 4.5 5 5.5 6
Giant Power Microelectronics Co., LTD
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