1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A
A
B
B
C
C
D
D
RXA
TXA
VC5
VCC
VCC
VBATT
VBATT
VCC
VCC
Title
Size
Document Number
R e v
Date:
Sheet
o f
01b
FSA03 - Application-Circuitry
A
1
1
Monday, August 11, 2008
FALCOM
98704 Langewiesen
Gewerbering 6
Justiermarken
TXA_RS232
RXA_RS232
MAX3221
SKT
R11
750R
C5
100nF
R6
470R
J3
STVB_1mm_NOKIA
1
2
3
4
TP4
U2
MIC5205
IN
1
EN
3
GND
2
ADJ
4
OUT
5
R2
100R
R1
BLM11
U3
EN
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
GND
14
T1IN
11
FORCEON
12
T1OUT
13
INVALID
10
R1IN
8
R1OUT
9
VCC
15
FORCEOFF
16
C7
220nF
R9
0R#
C1
100nF
TP2
C2
100nF
D1
LED
SW1
SW SPST
2
1
C8
100nF
R4
100R
R3
BLM11
R10
0R#
D2
MBR0520
C3
100nF
JUST2
U1
P228_Rev01a
RES
1
NC
2
NC
3
TM
4
VBATT
5
GND
6
VCC
7
GND
8
NC
9
NC
10
NC
11
TX
12
RX
13
SW2
SW DIP-2
C9
470pF
JUST1
TP_N1
R13
18k
J2
ML621S/F9D
2
1
TP3
C4
100nF
R12
10k
R7
0R
J1
DB9
1
2
3
4
5
6
7
8
9
C6
33UF/4V
