Audio AI Project Review

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IC1
Manufacturer Part Number
MCP73832T-2ACI/MC
U4
U1
J1
Part Type
Connector
U2
Manufacturer Part Number
AP7331-33WG-7
https://cdn2.flux.ai/flux-comment-files/files/commentFileId-88e36ca133d0425f0c45...
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please explain what U2 does.
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what is this?
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what is q2 doing
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what is U4 part number?
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C12
Capacitance
0.1uF
C13
Capacitance
10uF
C11
Capacitance
0.1uF
C28
Capacitance
1uF
C39
Capacitance
0.1uF
C37
Capacitance
TBD F
C9
Capacitance
0.1uF
C24
Capacitance
10nF
C40
Capacitance
0.1uF
C16
Capacitance
0.1uF
C5
Capacitance
3uF
C31
Capacitance
1uF
C1
Capacitance
3uF
C34
Capacitance
10pF
C6
Capacitance
3uF
C22
Capacitance
4.7uF
C18
Capacitance
10uF
C2
Capacitance
3uF
C15
Capacitance
1uF
C29
Capacitance
10uF
C14
Capacitance
1uF
C7
Capacitance
3uF
C30
Capacitance
0.1uF
C26
Capacitance
0.1uF
C20
Capacitance
10uF
C32
Capacitance
0.1uF
C25
Capacitance
1uF
C10
Capacitance
10uF
C17
Capacitance
0.1uF
C19
Capacitance
0.1uF
C21
Capacitance
10uF
C36
Capacitance
TBD F
C27
Capacitance
0.1uF
C33
Capacitance
0.1uF
C35
Capacitance
10pF
C8
Capacitance
3uF
MTMS
R4
Resistance
10kΩ
MTCK
R21
Resistance
5.1kΩ
TP-9
Test Signal
IN3-
R17
Resistance
240 Ω
R2
Resistance
2.2kΩ
R1
Resistance
100 Ω
MTDO
MTDI
R13
Resistance
240 Ω
TP-7
Test Signal
BIAS3
R14
Resistance
240 Ω
R19
Resistance
1.5kΩ
R6
Resistance
2.21kΩ
R7
Resistance
2.21kΩ
TP-1
Test Signal
GND
R20
Resistance
5.1kΩ
R16
Resistance
150 Ω
R3
Resistance
2.2kΩ
TP-8
Test Signal
IN3+
R15
Resistance
1.5kΩ
R12
Resistance
5.1kΩ
R9
Resistance
2.21kΩ
R18
Resistance
22 Ω
R10
Resistance
2kΩ
BLUE
DEBUG INDICATOR
BIAS
MK3
LED2
DEBUG INDICATOR
PWR
MK2
MK1
CHANNEL 1
L2
Inductance
TBD H
Q1
U5
D1
L1
Inductance
2nH
Q2
CHANNEL 3
DC Blocking Cap forms high pass filter
Line 1
C = 1/(2πfR) = 3uF
Line 2
where R (selectable)= 2.5kΩ (default)
Line 3
and f = 20Hz
CHANNEL 2
Status Blue LED
Line 1
Forward Current = 10mA
Line 2
Forward Voltage = 2.9V
Line 3
Max Reverse Current (@ VR = 5V) = 100uA
Q3
J2
Manufacturer Part Number
SM02B-SRSS-TB
Part Type
Battery Conn
SW3
LED1
ANT1
D2
Y1
Frequency
40MHz ±10 ppm.

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