1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
Check
REV
Description
Title:
Size
A2
Number
Revision
Date :
File Name:
Sheet of
Design By :
DATE
Design
Approval
2012/12/3
0
PC12C014A
NKC9 IO PCB(DIDITAL)
DIGITAL.SchDoc
1
2
T
o
M
A
IN
P
C
B
Staked ribbon cable connector to
be soldered onto this footprint
MOUNTING HOLES
USB
NC
+4VA (GREEN)
-4VA (RED)
MAIN (GREEN)
* Provide plenty of copper for heat sinking
*
for case of over voltage adapter
TUSB3200A STREAMING CONTROLLER
INRUSH LIMITING
ANALOG AUDIO RAILS
+3.3V
+3V3_MAIN
+4VA
-4VA
+5V
+VBUS
SERIAL EEPROM
If we ever convince ourselves we're not comfortable
NOTE
running the TUSB3200A off VBUS then we can
inductorless buck-boost that could regulate to 5V
look at a part like TI's REG71050 which is an
over the entire VBUS range @ 60mA Cost is about
$0.65 in 1k quantities
+VIN
TUSB3200A needs +5V and +3.3V
NOTE
Datasheet specifies that each rail must reach 95% of
Therefore, the value of the resistor at the gate of the FET
their final value within 25ms of one another.
is critical in ensuring the ramp rate is fast enough for
this 25ms spec to be met. As such,the total bulk capacitance
is restricted by this ramp rate constraint and the USB inrush spec
design for 14mA load from 2 LED's
USB
(pre-enumeration)
USB
(post-enumeration)
PRE-ENUMERATION POWER-ON INDICATION CIRCUIT
+VBUS
1
D-
2
D+
3
4
5
6
J6
C70
0.1uF
C71
0.1uF
C1
0.1uF
TP1
TP2
C2
0.1uF
C63
0.1uF
PLLFILO
1
A
VD
D
2
PWMO
3
PLLO
4
D
GN
D
5
PUR
6
DP
7
DM
8
D
VD
D
9
MRESET
10
TEST
11
EXTEN
12
RSTO
13
P3
14
P3
15
1
6
XINT
17
P3
18
P3
19
P3
20
2
1
NC
22
PLLOEN
23
P1
24
P1
25
P1
26
D
VD
D
S
2
7
P1
28
P1
29
P1
30
P1
31
P1
32
3
3
CSCLK
34
CSYNC
35
CDATO
36
3
7
CDATI
38
CRESET
39
CSCHNE
40
SDA
41
SCL
42
4
3
MCLKO
44
MCLKO2
45
4
6
MCLKI
47
MCLKI2
48
A
GN
D
4
9
XTALO
50
XTALI
51
PLLFILI
52
U7
TUSB3200ACPAH
C43
0.1uF
C55
0.1uF
C31
0.1uF
C20
0.1uF
C46
0.1uF
C29
0.1uF
C50
1uF
R50
10K
R43
20.0k 1%
R28
1K
R33
510 ohm
C62
47pF
R59
27.4 ohm 1%
R60
27.4 ohm 1%
C61
47pF
1
2
X1 6 MHz
R14
3.09k 1%
C22
1000pF
C23
100pF
L1
BLM21PG300SN1
A0
1
A1
2
A2
3
4
V
C
C
8
WP
7
SCL
6
SDA
5
U3
24C64
R13
5.1k
C6
0.1uF
R12
5.1k
C24
10uF
R19
1 ohm
R15
3.3 ohm
C21
10uF
C51
10uF
R44
47 ohm
D1
DNS_SML-010MTT87 (DEV)
D2
DNS_SML-010VTT87 (DEV)
R2
DNS_750 ohm (DEV)
R3
DNS_750 ohm (DEV)
OUT
1
IN
2
C
F
LY
-
3
G
ND
4
C
F
LY
+
5
U2
TPS60403
VIN
1
G
2
ON/OF
3
BYPAS
4
VOUT
5
U1
LP2985-4.0
C3
4.7uF,16V
C8
1uF
C4
4.7uF,16V
C7
0.1uF
OUT
IN
G
U6
NJU7223DL1-33
TP3
TP5
TP4
R9
DNS
C41
100uF,10V
C17
4.7uF/25V
Q3
MBT4403
R68
1k 1%
R49
1k 1%
R67
1k 1%
U11B
FDC6306P
D5
12V
R69
510k
D4
DNS_SML-010MTT87 (DEV)
R10
DNS_470 ohm (DEV)
C64
0.1uF
C39
0.1uF
C40
0.1uF
C9
0.1uF
C56
0.1uF
C65
1uF
U11A
FDC6306P
U4A
FDC6306P
U4B
FDC6306P
C49
100uF,10V
R8
DNS
R6
1K
C10
0.1uF
Q2
MBT4401
R7
100K
R11
33k
R62
0 ohm
R61
DNS
Q1
MBT4403
R4
10K
R5
1k 1%
D3
DNS
C5
1uF
R46
1K
R45
5.1k
R16
220 ohm
R34A
220 ohm
R34B
220 ohm
R34C
220 ohm
R34D
220 ohm
R18
47 ohm
R17
47 ohm
C57
100uF,10V
R47
33k
R48
5.1k
1
2
J7
1
2
3
4
J8
U12A
FDC6306P
R52
100k 1%
Q9
MBT4403
R53
1.00k 1%
R73
10k 1%
Q10
MBT4401
R74
10k 1%
R75
10k 1%
R76
22 ohm
R77
100k 1%
TP
U12B
FDC6306P
C58
1uF
C59
1uF
MIDI-TO-HOST
MIDI-FROM-HOST
USB_ENUMERATED
USB-DIS
GND
+3V3_MAIN
GND
GND
GND
+VIN
GND
+5V
AGND
+3.3VA
+3.3V
GND
GND
GND
GND
GND
AGND
SDOUT1
SDOUT2
BCLK
MCLK
GND
GND
GND
+3.3V
GND
LRCLK
AGND
GND
GND
+4VA
-4VA
-4VA
GND
+4VA
GND
+3.3V
GND
GND
GND
+3V3_MAIN
+5V
GND
GND
VBUS
+VIN
+3.3V
GND
GND
+VIN
POWER-LED
+3V3_MAIN
GND
GND
POWER-LED
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
J1
C19
33pF
C18
33pF
