TMPA421DS Datasheet, PDF (4/20 Pages) List of Unclassifed Manufacturers – 15W + 6W x2 2.1 Channel CLASS-D AUDIO POWER AMPLIFIER

Tai-1 Microelectronics
www.taimec.com.tw / www.class-d.com.tw
Typical Application
Preliminary
TMPA421DS
Rev.2.0 December 20, 2005
J1
PHONEJACK STEREO
J4
VR
BOUT-
C1
BOUT+
C2
1uF(16V)
L5
33uH
1uF(16V)
L6
33uH
D1
DIODE(optional)
PVCC
PVCC
C15
+ 10uF(16V)
C22
0.1uF(16V)
C18(optional) ^PVCC
1000uF(25V)
+
C23
0.1uF(16V)
D2
DIODE(optional)
R1 0
R7 6k
R8 12k
C9
33nF(6.3V)
RIN
R5 12k
R6 22k
LIN
R10 22k
C10
1nF(6.3V)
R9
10k
SD
1
switch S1
2
C4 1uF(6.3V)
3
C5 1uF(6.3V)4
C11 1uF(6.3V)
5
C6 6.8nF(6.3V6)
C3 6.8nF(6.3V)
7
C12 1uF(6.3V)8
9
J2
SWSPST 10
J3
SWSPST 11
12
C30
1nF(6.3V)
AVDD
R4 120k
R11 120k
R2 330
R3 330
D3
SD
BINN
BINP
HFVDDR
RIN
LIN
HFVDDL
AGND
GAINO
GAIN1
NC
NC
421DS
U1
NC
NC
NC
AVCC
NC
NC
AGND
VDDZ
AVDD
HFRC
AGND
NC
36
35
34
33
32
31
30
29
28 AVDD
27
26
25
VCC
C24
0.1uF(16V)
+
C16
10uF(16V)
C13 1uF(6.3V)
C14 10uF(6.3V)
C25
0.1uF(16V)
+
C17
10uF(16V)
PVCC
C26
0.1uF(16V)
+
C19(optional)
1000uF(25V)
PVCC
PVCC
VCC
R12
100
D4
DIODE(optional)
L7
L8
33uH
33uH
DIODE(optional)
C7
1uF(16V)
+
C28
47uF(16V)
ROUT
C8
1uF(16V)
+
C29
47uF(16V)
LOUT
Copyright ©2005,Tai-1 Microelectronics Corp.
4
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