PAM8803
3W Filterless Stereo Class-D Audio Amplifier
with Digital Volume Control
Thermal Information
Parameter
Symbol
Package
Maximum
Unit
Thermal Resistance (Junction to Ambient)
θJA
SSOP-24
96
°C/W
Electrical Characteristic
VDD=5V, Gain = 18dB, RL=8Ω,TA=25°C，unless otherwise noted.
PARAMETER
SYMBOL CONDITIONS
MIN TYP MAX
UNITS
Supply Voltage Range
VDD
2.2
5.5
15
V
No Load
7
Quiescent Current
IQ
8
mA
RL=8Ω
8.5
2.5
0.5
RL=4Ω
Mute Current
IMUTE
ISHDN
VSH
VMUTE=0V
VSHDN=0V
4
mA
μA
Shutdown Current
10
1.2
1.2
SHDN Input High
SHDN Input Low
MUTE Input High
MUTE Input Low
Output Offset Voltage
Drain-Source On-State
Resistance
V
VSL
0.5
VMH
VML
VOS
V
mV
Ω
0.5
300
0.40
0.35
No Load
IDS=0.5A
120
0.3
0.22
1.3
1.7
2.1
3.0
0.19
0.22
0.17
0.25
55
P MOSFET
RDS (ON)
N MOSFET
RL= 8Ω,THD=1%
RL= 8Ω,THD=10%
RL= 4Ω,THD=1%
RL= 4Ω,THD=10%
1.1
1.5
1.9
2.8
Output Power
PO
f=1kHz
W
%
RL=8Ω, PO=0.5W
Total Harmonic Distortion Plus
Noise
RL=8Ω, PO=1.0W
THD+N
RL=4Ω, PO=1.0W
RL=4Ω, PO=2.0W
Power Supply Ripple Rejection
Channel Separation
PSRR
CS
No input, f=1kHz, Vpp=200mV
PO=1W, RL=4Ω
45
60
dB
dB
kHz
%
80
Oscillator Frequency
fOSC
170
85
210
89
250
PO=1.7W, f=1kHz, RL=8Ω
PO=3.0W, f=1kHz, RL=4Ω
Efficiency
η
80
83
%
f =22 to 22kHz，
RL=4Ω
RL=8Ω
85
dB
dB
V
Signal Noise Ratio
SNR
THD=1%
87
Under Voltage Lock-out
UVLO
OTP
1.95
150
60
Over Temperature Protection
Over Temperature Hysteresis
°C
°C
OTH
Power Analog Microelectronics,Inc
www.poweranalog.com
12/2009 Rev 1.4
4
PAM [ POWER ANALOG MICOELECTRONICS ]
