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Advanced Product Information
Power Analog Microelectronics, Inc.
PAM8101/8201 Rev. 1.4
CONFIDENTIAL. DO NOT DISTRIBUTE OR REPRODUCE WITHOUT PERMISSION FROM P.A.M.
August 2005
2
PAM8101 Block Diagram
Spe ake r
1Bit
Controlle r
Ove r Curren t
1uF
C2
Vdd
C1
1uF
In put Signal
PAM8101 Pin Assignment
Vdd 1
GND 2
IN
3
4OUT
+
5OUT
-
PAM8201 Block Diagram
1uF
C3
Vdd
Vdd
Spe ake r
1Bit
Co ntroller
Ov er Cu rrent
C1
1uF
In put Signal
Spe ake r
1Bit
Con troller
Ov er Current
C2
1uF
In put Signal
Right
Left
Right
Left
PAM8201 Pin Assignment
IN
L 1
_
IN
R 2
_
+_
OUT
R 4
GND 3
8OUT
L
+_
7OUT
L
-_
6Vdd
5OUT
R
-_
THD+N vs. Output Power
(8 Ohms, 1 kHz, Vdd=2.5V to 6V)
Audio Precision
06/08/05 16:01:55
0.01
100
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
%
1m
3
2m
5m
10m
20m
50m
100m
200m
500m
1
2
W
With an 8-ohm load:
Vdd:
2.5V
4.0V
5.0V
6.0V
Output Watt:
0.3W
0.8W
1.2W
1.7W
Efficiency vs. Output power
(8 Ohms, 1kHz, Vdd = 5V)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Output power (W)
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