1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
ANALOG
9-40-0720-2
9-40-0720-2-0
R.Edmonds
+3.3V
CUR RENT LIMITER
VDP_SRC shall be able to s ource at least 250uA when D+ is between 0.5 and 0.7.
VDP_SRC shall not pull D+ below 2.2V when D+ is pulled to [3.0-3.6]V through [900-1575]ohms
VDP_SRC = 0.6V
0.33V ref
Locate close to USB input
Locate close to USB input
CHARGING PORT DETECTION
* Provide plenty of copper for heat s inking for case of over voltage adapter
For green/blue LEDs
Vo = Vref*(1+(RF/RG))
Vfb = 1.26V
nominally 4.0V
VLED_RGB
Power input is 6VDC
N/C
USB CONNECT
forces EXT_CHARGER low
if CHEC K_POWER low
Hold C HECK_POWER High t o
maintain EXT_CHARGER High
PSU DETECTION
Vbus DETECTION
* Provide plenty of copper for heat s inking for case of over voltage adapter
VLED
VLED = +2.8V
*
Do Not Stuff
COMPONENTS ON THIS SHEET SHOULD BE ON TOP RIGHT PCB
Do Not Stuff
AD33TP202F.PrjPcb
2014/12/1
AKAI
C
2 7
OFSHEET:
SIZE:
DATED:
DATED:DRAWN:
RELEASED:
SCALE:
FILENAME:
PART NUMBER:
TITLE:
COMPANY:
A
B
D
C
A
B
C
D
6 5 4 3 2 1
ASSY NUMBER:
Copyright (c) 2014 Akai Professional
AD33 Top Panel
OUT
1
IN
2
3
GND
U6
NJU7 22 3D L1 -3 3
R12 7
0 ohm
TP22
C45
0.1 uF
Q4
MBT440 3
R12 8
1K
R12 9
1K
R13 0 1 K
C53
0.1 uF
C54 0.1uF
R13 1
82 0K
G
DS
U7B
FDC6 30 6P
C57
1uF
D5
12 V
TP23
C58
0.1 uF
R13 2 0 ohm
+VBUS
1
D-
2
D+
3
GND
4
56
J6
R13 3
0 ohm
C70
0.1 uF
R13 4
10 K
84
+V
-V
U8C
LM3 93
G
DS
U7A
FDC6 30 6P
C72
0.1 uF
3 1
D8
MMBD414 8
R13 5
80 6 ohm 1%
R13 6
47 5 ohm 1%
R13 7
1.1 0K 1%
R13 8
10 .0K 1%
VIN
1
ON/OFF
2
OUT
3
VADJ
4
5
OUT(TAB)
6
GND
U59
NJM 238 7
C16 3
0.1 uF
C17 1
0.1 uF
TP24
R13 9 0 ohm
R14 0
10 K
R14 1
10 .0K 1%
1
3
2
J7
P6
L1
10 uH
C17 7
1uF
C17 8
1uF
L2 10 uH
D6
MBRS1 40LT3
D10
MBRS1 40LT3
R14 2 0 ohm
R14 3
10 .0K 1%
R14 4
10 .0K 1%
R14 5
10 .0K 1%
R14 6
12 .0K 1%
R14 7
1.5 0K 1%
1
2
3
D1
BAW56
R14 8
0 ohm
Q3
MBT440 3
R14 9 1 0K
+
5
-
6
7
U8B
LM3 93
+
3
-
2
1
1
U8A
LM3 93
1
2
3
D4
BAW56
R16 4 1 0K
R16 5 1 .0 0K 1%
R16 6 2 .1 5K 1%
VIN
1
OUT
2
GND
3
FB
4
ON/OFF
5
6
U11
AP15 01
D7
MBRA3 40T3
C73
10 uF,16V
R12 2.4 3K 1%
R33
1.9 6K 1%
C76
0.1 uF
TP1
TP2
R94
0 ohm
R48
10 0K
GNDGNDGNDGND GND
GND
GND GND
+3V3
GND GND
USB-
USB+
GND
GND
GNDGND
CHECK_POW ER
+VLED_RGB
GND
GND_LED
+3V3
GND
GND
GND
+3V3
GND
+3V3
GND
EXT _PSU
EXT _CHARGERUSB_CONNECT
+3V3
+5VUNREG
+3V3
VBUS_SENSE
+3V3
+VLED
GND_LED
GND_LED
VLE D_DISABLE
VLE D_BOOST
R12 98
DNS_ 100 K
R12 99
DNS_ 10K
G
D S
U101 4A
DNS_ FDC63 06 P
G
D S
U101 4B
DNS_ FDC63 06 P
R10 07 DNS_0 ohm
1
2
3
4
5
6
SW60
L3 1 00 uH
C48
10 uF,16V
C6
10 0uF, 16V
C75
10 0uF, 16V
C18 1
10 0uF, 16V
C16 5
10 0uF, 16V
C71
10 0uF, 16V
POWER
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