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Circuit Diagrams and PWB Layouts
LSP: Class D Audio Amplifier (Res)
1
2
CLASS D - AUDIO AMP(RES)
A3
A
Audio_Gnd
*
AUDIO-SW
A6
4930
I909
*
3930
2930
AUDIO-L
A6
9917
3K9
2934
100n
3n3
I908
3932
B
1K0
2933
I913
6n8
Audio_Gnd
SUB_MUTE
A4
C
I920
A3,A6
VOL_MUTE
3962
7904
33K
BC857B
F901
Audio_Gnd
D
Vaudio-
Audio_Gnd
E
AUDIO-C
A3,A6
9918
I925
AUDIO-R
3936
A3,A6
4931
3K9
2939
3n3
AUDIO-SW
3938
1904
1K0
I903
A3
1
2938
VOL_MUTE
2
AUDIO-R
A3
3
6n8
A3
Audio_Gnd
4
Audio_Gnd
AUDIO-L
F
A3
F910
5
AUDIO-C
6
B6B-PH-K
3139 123 5895.4
1
2
ES1E AA
3
4
2931
Vaudio+
3n3
3931
220K
I941
Vaudio-
2977
2914
22u
7901-1
Audio_Gnd
LM393N
8
100n
3
I916
Audio_Gnd
F912
1
2
4
Audio_Gnd
3935
Vaudio-
3933
-V
I914
120R
10K
+Vaudio
Vaudio-
2960
22u
2942
6962
-Vaudio
I915
100n
BZX384-C33
I921
3947
39K
Vaudio-
I922
7903
PDTC143ZT
I945
I918
2936
F913
3n3
6904
3937
-V
Audio_Gnd
220K
BZX384-C27
8
2935
5
7
I904
100n
6
7901-2
LM393N
4
-V
3939
3941
I948
100R
10K
3
4
7.
26
5
6
6906
I928
Vaudio+
Vaudio-
BAV99
2951
47n
2961
2950
10u
I930
I924
I901
47n
2949
3960
470u
100K
2948
2
3
1
22u
-Vaudio
2947
6905
P0102DA
47n
Vaudio+
7902
TDA8925J
Φ
VDD1
VDD2
CLASS-D
AMPLIFIER
2952
1
6
SW1
BOOT1
2
REL1
1u0
4
EN1
I934
7
OUT1
9
3955
STAB
3
DIAG
15
POWERUP
4R7
2953
12
BOOT2
17
SW2
1u0
16
REL2
14
11
I938
EN2
OUT2
VSS1
VSS2
3971
2945
4R7
Vaudio-
470u
2946
Vaudio+
220n
5
6
7
8
9
I902
5913
+Vaudio
100n
2964
Audio_Gnd
Audio_Gnd
100n
2965
Audio_Gnd
I926
5914
I927
5910
Audio_Gnd
Audio_Gnd
Audio_Gnd
GND-AUD
F904
5901
I935
33u
I936
2955
Vaudio-
680p
Audio_Gnd
2954
Vaudio+
680p
Audio_Gnd
Audio_Gnd
F903
2971
Vaudio-
Audio_Gnd
680p
I943
2970
Vaudio+
680p
5902
F905
33u
Audio_Gnd
7
8
9
1901 C9
5913 A8
1902 D9
5914 B8
1904 F1
6904 E3
2911 A8
6905 B6
A3
2913 B8
6906 A6
2914 A3
6962 C3
2930 B2
7901-1 A3
2931 A2
7901-2 E3
2933 B2
7902 C5
A
Vaudio+
2934 B2
7903 D3
2935 E2
7904 C2
2936 D2
9917 B1
2938 F2
9918 E1
2939 E2
F901 C1
2942 C4
F903 D9
2945 D5
F904 C9
2946 D5
F905 D9
2947 B5
F910 F1
2948 B5
F912 B4
2949 B5
F913 D5
Vaudio-
B
2950 A5
I901 A5
-V
2951 A5
I902 A8
2952 C6
I903 F2
2953 D6
I904 E3
2954 D7
I908 B2
2955 C7
I909 A2
2957 C8
I913 B2
2960 C4
I914 B3
2961 A5
I915 C3
2963 B6
I916 B4
2964 A7
I918 D2
2965 B7
I920 C2
C
2970 D7
I921 C4
2971 D7
I922 D4
1901
2977 A4
I924 A5
1
2978 B8
I925 E2
2
3
2979 B8
I926 B8
2982 C8
I927 B8
B3B-EH-A
2983 E8
I928 A5
1902
2984 E8
I930 A6
1
L
3930 B2
I934 C6
2
3931 A2
I935 C7
3
3932 B2
I936 C7
4
3933 B2
I938 D6
R
D
3934 B3
I941 A3
3935 B3
I943 D7
3936 E2
I945 D4
3937 E2
I948 F3
3938 F2
3939 F2
3940 F3
3941 F3
3942 B4
3943 C4
3947 C3
E
3949 C4
3952 C6
3953 D6
3955 C7
3956 C8
3958 A5
3959 C3
3960 B5
3961 C3
3962 C1
3971 D7
3972 E8
F
3973 A3
3974 C4
4930 A1
4931 E1
5901 C7
5902 D7
F_15040_003.eps
5910 B8
230305
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