DFBM-CA220
Data Sheet
Feb 24, 2005
Proprietary Information and Specifications are Subject to Change
DFBM-CA220
Bluetooth Module Class 2
A Class 2 Bluetooth module compliant
with
Bluetooth Specification V1.2
for wireless Audio applications.
FEATURES:
Suitable for Headsets, Cellular Headsets, PDAs ......., etc.
Small size and Low Profile using high-density packaging
technology.
High sensitivity for better reception.
Various interfaces: UART, USB and PCM.
Wide operating temperature range: -40~+85
.
Device diagram
TM
BC2-Audio
headset extra
with CODEC
And PCM
DFBM-CA220
Data Sheet
Feb 24, 2005
Proprietary Information and Specifications are Subject to Change
General Specification
Bluetooth Specification
Version 1.2
Frequency 2402~2480MHz
Modulation FHSS/GFSK
Transmission Rate
721kbps
Receive Sensitivity
Typ. -78dBm
Maximum Output Power
+4dBm(Class 2)
Operating Voltage
2.7~3.6V
Operating Temperature
-40~+85
Antenna Impedance
50
Package Size
10.5*10.5*2.0 (mm)
DFBM-CA220
Data Sheet
Feb 24, 2005
Proprietary Information and Specifications are Subject to Change
Interface
Interface Description
Antenna
External Antenna 50
UART Interface
TX, RX, RTS, CTS(9600bps~1.5Mbps)
SPI Interface
Synchronous Serial Interface for firmware
download
USB Interface
Full speed Universal Serial Bus interface
PCM Codec
Qualcomm MSM 3000/5000 ,
Motorola MC145483/ MC145481
OKI MSM7705 , STW 5093/5094
PIO Interface
8 terminals
AIO Interface
2 terminals
DFBM-CA220
Data Sheet
Feb 24, 2005
Proprietary Information and Specifications are Subject to Change
Application Circuit
R4
220K 1%
R5
150K 1%
R11
10k
C12
10u
S1
TALK SW
S3
VOL+ SW
S2
VOL-SW
1.8V
D1
B-LED
D2
R-LED
R7
47K
R8
47K
R6
2K2
R1
10K
C10
2U2
C8
47N
C7
47N
C9
15P
C4
100N
C1
10UF
C5
TBD
1
2
J5
SPEAK
1
2
J4
MIC
1 2
J2
3.7V BATTERY
J1
DC5V JACK
STATUS
3
EN
6
GND
5
VSEN
9
VIN
1
V2P8
7
FAULT
2
TIME
4
IREF
8
VBAT
10
U1
ISL6292
C3
1UF
R2
0R
Q2
BC847BW
Q3
BC847BW
R12
300R
R13
680R
C2
10NF
R3
5K
Q1
BC847BW
1.8V
VIN
1
GND
2
CE/
3
LX
5
VOUT
4
U2
XC9216
L3
10u
C13
10u
1.8V
L2
2.2nH
RE
S
E
T
1
AI
O_
1
2
AI
O_
0
3
AN
T
4
GN
D
5
MI
C
_
N
6
MI
C
_
P
7
SP
K
_
P
8
SP
K
_
N
9
VDD_1.8V
10
VDD_3.15V
11
USB_DP
12
USB_DN
13
GND
14
UART_RTS
15
UART_TX
18
PC
M
_
C
L
K
19
PC
M
_
S
Y
N
C
20
P
C
M
_
OUT
21
PC
M
_
I
N
22
GN
D
23
SP
I
_
C
S
B
24
SP
I
_
C
L
K
25
SP
I
_
M
O
S
I
26
SP
I
_
M
I
S
O
27
PIO_11
28
PIO_9
29
PIO_5
30
PIO_4
31
GND
32
UART_CTS
16
UART_RX
17
PIO_3
33
PIO_2
34
PIO_1
35
PIO_0
36
U3
DFBM-CA220/CA221
VIN
1
GND
2
CE/
3
VOUT
5
NC
4
U4
XC6209
3.7V BATTERY
C11
10N
E?
ANTENNA
C6
1pF
Q4
BC847BW
C14
2.2uF
R14
100K
3.7V Battery
R15
10K
R16
10K
D3
BAT54W
3.7V Battery
DFBM-CA220
Data Sheet
Feb 24, 2005
Proprietary Information and Specifications are Subject to Change
Pin description
Pin No.
Name
Description
1
Reset
An active high reset
2
AIO_1
Analogue Programmable input/output
3
AIO_0
Analogue Programmable input/output
4 ANT
RF
input/output
5 Gnd
Ground
6
MIC-
Microphone input negative
7
MIC+
Microphone input positive
8
SP+
Speaker output positive
9
SP-
Speaker output negative
10
Vdd_1.8V Supply Voltage (1.8V)
11
Vdd_3.15V Supply Voltage (3.15V)
12 USB_DP
USB data plus with selectable internal
1.5kohm pull-up resistor
13 USB_DN
USB
data
minus
14 Gnd
Ground
15
UART_RTS UART request to send active low
16
UART_CTS UART clear to send active low
17
UART_RX UART data input active high
18
UART_TX UART data output active high
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