Preliminary
DFBM-CM221
DFBM-CM221
Bluetooth Module Class 2
TM
A Class 2 Bluetooth module suitable for
MP3 applications.
1. FEATURES
High Integrate, need minimum external components.
Compliant to various interfaces: SPI, UART, USB.
2.Device Diagram
1.8V
Charger
Regulator
X'tal
BC3-MM
S5~S6
S1~S4
Reset
UART, USB, SPI
LED
Audio In/Out
1.8V
Battery
VUSB or DC Jack
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
3.General Specification
Bluetooth Specification
Version 1.2
Frequency
2.4GHz ISM Band
Transmission Rate
723 kbps
Receive Sensitivity
-81 dBm
Maximum Output Power
+4 dBm (Class 2)
Operating Voltage
3.4~4.2 V
Operating Temperature
-20~+75
Storage Temperature
-40~+85
Antenna Impedance
50 ohm
Package Size
17.4*16.7*2.2 mm
Operating Range
10 meters
Quiescent Current
17 uA
Standby Current
1 mA
Operating Current
25 mA
TM
4.RF Characteristics
RF Characteristics
Min. Typ. Max.
Unit
1. Frequency Range
2402 ~ 2483.5
MHz
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
2. Output Power ( Hopping On )
2-1. Average Power
2
dBm
2-2. Maximum Power
4
dBm
2-3. Minimum Power
-6
dBm
3. Power Control ( Hopping Off )
3-1. Maximum Step
5
8
dBm
3-2. Minimum Step
2
4
dBm
4. Initial Carrier ( Hopping On )
4-1. Average Offset
-20
20
KHz
4-2. Max +ve Offset
-20
20
KHz
4-3. Max ve Offset
-20
20
KHz
5. Carrier Drift ( Hopping On, Low & Mid &
High Channel )
5-1. Drift Rate
-20
10
20
KHz
5-2. DH1
-25
10
25
KHz
5-3. DH3
-40
10
40
KHz
5-4. DH5
-40
10
40
KHz
6. Modulation Characteristics ( Hopping Off )
6-1. F1 Average
140
165
175
KHz
6-2. F2 Maximum
115
145
KHz
6-3. F1 / F2 Ratio
0.8
0.95
7. Single Sensitivity ( Hopping Off & On )
7-1. Overall BER ( -70dBm )
0
0.1
%
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
8. Multi Slot Sensitivity ( Hopping Off & On )
8-1. Overall BER ( -70dBm )
0
0.1
%
9. Maximum Input Level ( Hopping Off )
9-1. Overall BER
0
0.1
%
5.Audio Characteristics
RF Characteristics
Min. Typ. Max.
Unit
1. SNR
85
dBm
2. THD
6
%
6.Pin Description
Pin No.
Name
Description
1
D2
Light if power on or pair
2
GND Ground
3
ANT RF
input/output
4
PIO11 Programmable
input/output
5
MIC_P_R
Microphone input positive (right side)
6
MIC_N_R
Microphone input negative (right side)
7
MIC_P_L
Microphone input positive (left side)
8
MIC_N_L
Microphone input negative (left side)
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
9
SPK_N_R
Speaker output negative (right side)
10
SPK_P_R
Speaker output positive (right side)
11
SPK_N_L
Speaker output negative (left side)
12
SPK_P_L
Speaker output positive (left side)
13
GND Ground
14
USB D-
USB data minus
15
USB D+
Input USB data plus with selectable internal 1.5kohm
pull-up resistor
16
VUSB
5V input
17
UART_RTS
UART request to send active low
18
UART_TX
UART data output
19
UART_CTS
UART clear to send active low
20
UART_RX
UART data input
21
S4
High when incoming call
22
S3 Volume
up
23
S2 Volume
down
24
S1 Turn
on
25
RESET
Reset if high
26
S5 Forward
27
S6 Backward
28
VBAT
Battery voltage input
29
GND Ground
30
1.8V 1.8V
output
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
31
GND Ground
32
D1
Light if battery is charged or low battery
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
7.Reference design for Headset application
Note:
1. The Mini USB can replace to DC Jack. It used to charge the battery.
2. The RESET pin can connect to VUSB or place a SW.
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
8.Dimensions (mm)
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CM221
Contact information
:
Website:
http://www.deltaww.com
Email:
jonathan.chen@delta.com.tw
Tel No.: 886-3-3591968 # 2925
Data Sheet
May 23, 2005
Proprietary Information and Specifications are Subject to Change
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