
50
LC4.5E AA
7.
Circuit Diagrams and PWB Layouts
Class D Audio Amplifier
NC
NC
A
REF
K
IN+
VDDA
OUT
IN-
VSSD
G
VSSA
HVPI
BOOT
VDDP
POWERUP
VSSP
STABI
HVP
OVP
CGND
DIAG
IN+
VDDA
OUT
IN-
VSSD
G
VSSA
HVPI
BOOT
VDDP
POWERUP
VSSP
STABI
HVP
OVP
CGND
DIAG
L
-
+
-
+
R
/ 2.7A
CLASS D AUDIO AMPLIFIER
/ 2.7A
EMC
EMC
EMC
0R
RES
RES
RES
RES
PHASE INVERTER (UNITY GAIN)
SD2 ONLY
SD1 ONLY
RES
*Connection Inverted (R_CH)
POWER LINE FILTER
(Mounting Hole)
(Mounting Hole)
RESERVED
EMC
RES
FROM 1752 OF SSB BOARD
TO/FROM X200 OF PSU
RES
RES
35V
35V
35V
25V
25V
35V
10u
10u
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
1001 E11
1002 C2
1003 A2
2001 B2
2002 B3
2003 B3
2004 B4
2006 C3
2007 C3
2008 C3
2009 C3
2010 C8
2011 C4
2012 A5
2013 B5
2014 A7
2015 A6
2016 A6
2017 B7
2018 C8
2019 C8
2020 A8
2021 B8
2022 C9
2023 C9
2024 C9
2026 C8
2027 D3
2028 D3
2029 F5
2030 D7
2031 E6
2032 F5
2033 F5
2034 E7
2035 E8
2036 E8
2037 F8
2038 F8
2039 F3
2040 G8
2041 F4
2042 F9
2043 F9
2044 G8
2045 F9
2047 C5
2048 B4
2051 C3
2052 E10
2053 E10
2054 E10
2055 E11
2060 F11
2061 F11
2062 B6
2063 E6
2064 B4
2065 F5
3001 A3
3003 C4
3004 B4
3005 B7
3006 A6
3007 B5
3008 B5
3009 B6
3010 B8
3011 C8
3012 B8
3013 C5
3014 C9
3019 F3
3020 F5
3021 G3
3022 E7
3023 E6
3024 F5
3025 F5
3026 E8
3027 E6
3028 F4
3029 F8
3030 E8
3031 F9
3032 E6
3033 F5
3034 F4
3037 B6
3038 C5
3039 C5
3040 C9
3041 F9
3042 C8
3043 F8
3044 D4
3045 D4
3046 D6
3047 G6
4001 E4
4003 D4
5001 A3
5002 C3
5003 C2
5004 B3
5005 D3
5006 C8
5007 F8
6001 C4
6002 C6
6003 G6
7000 C6
7001 F7
7004 F4
7005 D4
F001 A2
F002 B2
F003 C2
F004 C2
F005 C2
F006 C2
F007 A3
F008 A3
F009 E11
F010 E11
F011 E11
F012 E11
I001 B3
I002 B5
I003 B5
I004 C3
I005 C6
I006 C6
I007 C6
I008 D3
I009 D4
I010 D4
I011 B8
I012 C7
I013 C7
I014 C7
I015 C7
I016 F7
I017 C9
I019 E4
I020 F6
I021 F9
I022 G4
I023 F8
I024 F7
I025 D6
I026 G6
IXXX F3
IXXX F4
IXXX F4
IXXX F5
IXXX B6
IXXX B6
IXXX E6
IXXX E6
IXXX A7
IXXX C7
IXXX F7
IXXX F7
IXXX C8
IXXX E8
IXXX F8
2064
CGND
PGND
3025
I042
I043
I041
I038
I040
I037
I035
I036
I034
I031
I033
I029
I030
I028
I027
2065
47n
2063
47n
2062
CGND
I026
2u2
5003
I025
3047
1K0
BAT54 COL
6003
1K0
3046
PGND
6002
BAT54 COL
PGND
2n2
2060
2061
2n2
PGND
PGND
2n2
2055
PGND
2054
2n2
2n2
2053
2052
2n2
PGND
I022
I024
I019
I023
I020
I021
I016
I017
I015
I013
I014
I012
I010
I011
I009
I006
I007
I008
I005
I002
I003
I001
I004
F008
F011
F012
F010
F007
F009
PGND
10K
3045
BC847BW
7005
3044
33K
4003
2051
100p
PGND
3042
10K
3043
10K
1u0
2047
68K
3038
PGND
10K
3040
10K
3041
PGND
3039
5
3
1
2
4
10K
TL431ACDBV
7004
10R
3030
3012
10R
10R
3001
PGND
PGND
2044
100n
100n
2010
4001
VP
CGND
5001
2039
2041
10K
3019
10K
3028
4K7
3021
3K9
3034
220n
2045
PGND
220n
2022
2003
100n
18
2
1 10 11 20
15
8
7
13
19
3
4
16
12
6
14
5
TDA8931
7001
Φ
POWER
COMPARATOR
17
9
5
18
2
1 10 1120
15
9
8
7
13
19
3
4
16
12
6
14
Φ
POWER
COMPARATOR
7000
TDA8931
17
F002
PGND
F001
220u
2004
100n
2048
PGND
VP_SGN
100n
PGND
PGND
2002
220u
2K2
3029
2001
2K2
PGND
3011
PGND
100n
2027
2028
100n
2u2
5005
VP_SGN
PGND
PGND
3003
22K
2011
100n
BZX384-C5V6
PGND
PGND
6001
PGND
3020
1K0
PGND
PGND
PGND
2007
100p
2u2
5002
100p
2006
100p
2u2
2009
5004
2008
100p
1K0
3004
220K
3027
3022
3009
220K
22R
PGND
3005
B3B-PH-K
1
2
3
VP
1003
F005
F006
F004
3
4
5
6
7
8
9
F003
1002
1
2
2024
PGND
1m0
470n
2023
22R
3014
5006
33u
VP
PGND
220p
2021
2020
220p
1K2
VP
3010
PGND
50V
VP_SGN
100n
2017
2u2
2019
15n
2018
220n
2026
PGND
PGND PGND
PGND
2012
CGND
10K
CGND
220u
3013
2013
220n
3K9
3037
3n9
2014
3006
1K0
3n9
2015
2016
2n2
47K
3007
2K2
3
4
3008
1001
1
2
1m0
PGND
2042
470n
2043
3031
22R
33u
5007
220p
VP
PGND
220p
2035
2036
PGND
VP
3026
1K2
2034
VP_SGN
100n
2037
2u2
50V
PGND
2038
15n
2040
220n
CGND
PGND PGND
PGND
2029
220u
10K
CGND
2033
3033
220n
3K9
3032
3n9
2030
1K0
3023
3n9
2031
2032
2n2
47K
3024
2K2
HVPI-L
HVPI-R
SOUND-ENABLE
AUDIO-L
AUDIO-R
L-
L+
HVPI-L
HVPI-L
R+
HVPI-R
HVPI-R
R-
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