Rainbow Electronics BTM -60х - Manual (Page 6)

Headset Application
R1
9
2.
2K
R2
0
2.
2K
R2
1
2.
2K
PI
O
7
PI
O
8
PI
O
6
C1
2
47n
SC
LK
6
GN
D
4
A2
3
SD
A
5
WP
7
VC
C
8
NC
1
NC
2
U3
24LC
3
2
1
2
BT
1
BAT
T
ER
Y
L
ITH
IUM POL
YMER
/IO
N
CE
LL
Charg
er
Input 6VDC
1 2
SW
3
VOL-
C6 15p
F
R7 2R
2
C9 4.
7uF
R8 2
20K
3
1
2
Q1
3904
IN
1
VSS
2
CE
3
VOU
T
5
BY
P
4
U2
R
T
9
167-
2.
7V
R1
6
2
20K
C2 C
AP N
P
C7 1n
F
TP
1
T P
O
IN
T
R
LE
D
2
BL
U
E L
ED
TP
3
T P
O
IN
T R
R4 220
K
C8 2.
2uF
R1
3
150
K
R6 10
R
R1
5
2
20K
D1 LL4
148
R5 120
K
C5 47
0pF
R1
4
150
K
R1
1
47K
G
ND0
24
VB
AT
22
VDD
4
AIO 0
5
UA RT _C TS
10
UA RT _R TS
7
UA RT _T X
8
UA RT _R X
9
USB_ DN
11
SPI_ CS B
27
SP I_C LK
26
SPI_ MI SO
25
R
ESE
T
B
21
PI
O4
20
PIO 11
34
PIO 10
33
PIO 2
36
PIO 3
35
MI
C
_
P
47
SP
K_P
45
PC
M
_
C
L
K
15
PCM _IN
14 PC M_ SYNC
13
PC
M
_
OU
T
16
USB_ DP
12
G
ND3
48
RF_
IO
40
V
_
CHG
23
PIO 0
38
PIO 1
37
AIO 1
6
PIO 9
32
SP
K_N
44
MI
C
_
N
46
SPI_ MO SI
28
PI
O5
19
LED 0
30
LED 1
29
VR
E
G
_EN
43
G
ND1
39
G
ND2
41
1V8
3
NC
42
PI
O6
18
PI
O7
17
PIO 8
31
+V_ PA
2
GND
1
U1
BT
M
-6
0
0
R9 220
K
R1
0
22
0K
1
E1
A
NT
E
NNA
L2
1
5nH
R1
2
220
K
L1 INDUCT
O
R
R1
7
220
K
C1
0
4.
7uF
C3
47
0pF
ZD1 5V
6/
0
.5
W
TP
2
T P
O
IN
T
R
3V3
R1
8
2
20K
1 2
SW
1
TA
L
K
C4 2.
2uF
C1
1
0.
1uF
TP
5
T P
O
IN
T
R
M MI
C
1
TP
6
T P
O
IN
T
R
R2 330R
1 2
SW
2
VOL+
RE
C1
RE
C
TP
4
T P
O
IN
T
R
C1 C
AP N
P
LE
D
1
RE
D L
E
D
R1 2K2
R3 330R
3
.6
VBAT
3
.6V
BAT
3.
6VBAT
3.
6VB
A
T
1.
8V
1.
8V
Opti
on for BTM
-610
(bc
4-he
ads
et)
3V
3
3V
3
VC
C
1
D-
2
D+
3
GN
D
4
GN
D
5
J1
M
INI
US
B
J
A
CK
50
oh
m Mi
cro
Str
ip
Line