Preliminary
DFBM-CH120
DFBM-CH120
Bluetooth
TM
Module Class 2
Wireless communication
module compliant with
TM
Bluetooth Specification V1.1.
FEATURES:
Suitable for Cellular Phones, Notebook PCs, PDAs, Digital
Cameras, Printers ……., 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
BC3-
Handphone
PCM
Data Sheet
Jan 24, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CH120
General Specification
Bluetooth Specification
Frequency
Modulation
Transmission Rate
Receive Sensitivity
Maximum Output Power
Operating Voltage
Operating Temperature
Antenna Impedance
Package Size
Version 1.1
2402~2480MHz
FHSS/GFSK
721kbps
Typ. -78dBm
+4dBm(Class 2)
2.2~3.6V
-40~+85℃
50Ω
10.5x10.5x2.0 mm
Data Sheet
Jan 24, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CH120
Interface
Interface
Antenna
UART Interface
SPI Interface
USB Interface
PCM Codec
PIO Interface
AIO Interface
Description
External Antenna 50Ω
TX, RX, RTS, CTS(9600bps~1.5Mbps)
Synchronous Serial Interface for firmware
download
Full speed Universal Serial Bus interface
Qualcomm MSM 3000/5000 ,
Motorola MC145483/ MC145481
OKI MSM7705 , STW 5093/5094
8 terminals
2 terminals
Pin description
Pin No.
1
2
3
4
Data Sheet
Name
Reset
AIO_1
AIO_0
ANT
Description
An active high reset
Analogue Programmable input/output
Analogue Programmable input/output
RF input/output
Jan 24, 2005
Proprietary Information and Specifications are Subject to Change
Preliminary
DFBM-CH120
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Data Sheet
Gnd
NC
NC
NC
NC
Vdd_1.8V
Ground
Not Connected
Not Connected
Not Connected
Not Connected
Supply Voltage (1.8V)
Vdd_3.15V Supply Voltage (3.15V)
USB data plus with selectable internal
USB_DP
1.5kohm pull-up resistor
USB_DN USB data minus
Gnd
Ground
UART_RTS UART request to send active low
UART_CTS UART clear to send active low
UART_RX
UART_TX
PCM_CLK
PCM_OUT
PCM_IN
Gnd
SPI_CSB
UART data input active high
UART data output active high
Synchronous data clock
Synchronous data output
Synchronous data input
Ground
Chip select for Serial Peripheral Interface,
Jan 24, 2005
Proprietary Information and Specifications are Subject to Change
PCM_SYNC Synchronous data sync
Preliminary
DFBM-CH120
active low
25
26
27
28
29
30
31
32
33
34
35
36
SPI_CLK
SPI_MOSI
SPI_MISO
PIO_11
PIO_9
PIO_5
PIO_4
Gnd
PIO_3
PIO_2
PIO_1
PIO_0
Serial Peripheral Interface clock
Serial Peripheral Interface data input
Serial Peripheral Interface data output
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Ground
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Data Sheet
Jan 24, 2005
Proprietary Information and Specifications are Subject to Change
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