User guide

Headset Application
R19
2.2K
R20 2.2K
R21 2.2K
PIO7 PIO8 PIO6
C12 47n
SCLK
6
GND
4
A2
3
SDA
5
WP
7
VCC
8
NC
1
NC
2
U3
24LC32
12
BT1 BATTERY
LITHIUM POLYMER/ION CELL
Charger Input 6VDC
1 2
SW3 VOL-
C6 15pF
R7 2R2
C9 4.7uF
R8 220K
3
1
2
Q1
3904
IN
1
VSS
2
CE
3
VOUT
5
BYP
4
U2
RT9167-2.7V
R16 220K
C2 CAP NP
C7 1nF
TP1 T POINT R
LED2
BLUE LED
TP3 T POINT R
R4 220K
C8 2.2uF
R13
150K
R6 10R
R15 220K
D1 LL4148
R5 120K
C5 470pF
R14 150K
R11 47K
GND0
24
VBAT
22
VDD
4
AIO0
5
UART_CTS
10
UART_RTS
7
UART_TX
8
UART_RX
9
USB_DN
11
SPI_CSB
27
SPI_CLK
26
SPI_MISO
25
RESETB
21
PIO4
20
PIO11
34
PIO10
33
PIO2
36
PIO3
35
MIC_P
47
SPK_P
45
PCM_CLK
15
PCM_IN
14
PCM_SYNC
13
PCM_OUT
16
USB_DP
12
GND3
48
RF_IO
40
V_CHG
23
PIO0
38
PIO1
37
AIO1
6
PIO9
32
SPK_N
44
MIC_N
46
SPI_MOSI
28
PIO5
19
LED0
30
LED1
29
VREG_EN
43
GND1
39
GND2
41
1V8
3
NC
42
PIO6
18
PIO7
17
PIO8
31
+V_PA
2
GND
1
U1
BTM-600
R9 220K
R10 220K
1
E1
ANTENNA
L2
15nH
R12
220K
L1 INDUCTOR
R17 220K
C10 4.7uF
C3
470pF
ZD1 5V6/0.5W
TP2 T POINT R
3V3
R18 220K
1 2
SW1 TALK
C4 2.2uF
C11 0.1uF
TP5
T POINT R
M
MIC1
TP6
T POINT R
R2 330R
1 2
SW2 VOL+
REC1
REC
TP4 T POINT R
C1 CAP NP
LED1
RED LED
R1 2K2
R3 330R
3.6VBAT
3.6VBAT
3.6VBAT
3.6VBAT
1.8V
1.8V
Option for BTM-610(bc4-headset)
3V3
3V3
VCC
1
D-
2
D+
3
GND
4
GND
5
J1
MINI USB JACK
50 ohm Micro Strip Line