PAM8404
3W/CH Filterless Stereo Class-D Audio Amplifier
Electrical Characteristic
QFN 4x4 20-Pin
TA=25°C, AVDD=PVDD=5V, GND=PGND=0V, unless otherwise noted.
Parameter
Supply Voltage
Symbol
Test Conditions
MIN TYP MAX UNIT
VDD
2.5
5.5
V
VDD=5V
3
THD+N=10% f=1kHz RL=4Ω
W
VDD=3.6V
VDD=5V
1.5
2.35
1.2
THD+N=1% f=1kHz RL=4Ω
THD+N=10% f=1kHz RL=8Ω
THD+N=1% f=1kHz RL=8Ω
W
W
W
%
VDD=3.6V
VDD=5V
Output Power
PO
1.7
VDD=3.6V
VDD=5V
0.9
1.4
VDD=3.6V
0.7
VDD=5.0V,Po=0.5W,RL=8Ω
VDD=3.6V,Po=0.5W,RL=8Ω
VDD=5.0V,Po=1W,RL=4Ω
VDD=3.6V,Po=1W,RL=4Ω
VDD=5.0V, Inputs ac-grounded with
Cin=1ꢀF
0.15
0.27
0.23
0.24
-48
-63
-93
87
f=1kHz
f=1kHz
Total Harmonic Distortion Plus
Noise
THD+N
PSRR
%
f=100Hz
f=1kHz
Power Supply Ripple
Rejection
dB
Crosstalk
Cs
VDD=5V,Po=0.5W,RL=4Ω,Gv=23dB F=1kHz
dB
dB
Signal-to-noise ratio
SNR
VDD=5V, Vorms=1V,Gv=23dB
VDD=5V, Inputs ac-grounded with
Cin=1ꢀF
A-weighting
A-weighting
43
Output noise
Vn
ꢀV
No A-weighting
BW 22Hz-22kHz
VDD=5.0V, THD=1%
RL=8Ω, THD=10%
RL=4Ω, THD=10%
VDD=5V
59
97
Dynamic range
Efficiency
Dyn
η
A-weighting
dB
%
89
f=1kHz
84
11
Quiescent Current
Shutdown Current
IQ
No load
mA
ꢀA
VDD=3.6V
6
ISD
VDD=5.5V
Vsd=0.3V
PMOS
< 1
250
170
Static Drain-to-source
On-state Resistor
Rdson IDS=500mA,Vgs=5V
mΩ
NMOS
Switching Frequency
Output Offset Voltage
fsw
VDD=3V to 5V
300
10
6
kHz
mV
Vos
Vin=0V, VDD=5V
G0=L G1=L
G0=H G1=L
G0=L G1=H
G0=H G1=H
12
18
24
150
closed-loop voltage gain
Gain
VDD=5V RL=4Ω f=1kHz
dB
°C
Over Temperature Protection
Over Temperature Hysterisis
OTP
OTH
No Load, Junction Temperature
50
Power Analog Microelectronics,Inc
www.poweranalog.com
03/2009 Rev 1.1
5
PAM [ POWER ANALOG MICOELECTRONICS ]
