u blox Malmo 090103L Serial Port Adapter User Manual E M Datasheet OEMSPA cB 0901

Download:
Mirror Download [FCC.gov]
Document ID	601238
Application ID	yf7Qm8gSYTBdWKkR1beO1Q==
Document Description	Users Manual Part 1
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	98.31kB (1228856 bits)
Date Submitted	2005-11-10 00:00:00
Date Available	2005-11-10 00:00:00
Creation Date	2005-11-08 13:42:36
Producing Software	Acrobat PDFWriter 4.05 for Windows NT
Document Lastmod	0000-00-00 00:00:00
Document Title	E M Datasheet OEMSPA cB-0901.PDF
Document Creator	E M Datasheet OEMSPA cB-0901.doc - Microsoft Word
Document Author:	markus.wejrot

INDUSTRIAL BLUETOOTH™
OEM Serial Port Adapter™
cB-0901
Electrical & Mechanical Datasheet
OEM Serial Port Adapter™
cB-0901
Electrical & Mechanical Datasheet
Copyright © 2005 connectBlue AB.
The contents of this document can be changed by connectBlue AB without prior notice and do not constitute any binding undertakings from connectBlue AB. connectBlue AB is not responsible under any circumstances for direct, indirect, unexpected damage or consequent damage that is caused by this document.
All rights reserved.
Release: 2005-11
Document version: 1.1
Document number: cBProduct-0410-04
Printed in Sweden.
Trademarks
Registered trademarks from other companies are: Bluetooth is a trademark owned
by the Bluetooth SIG, Inc., Microsoft™, Windows™, Windows NT™,
Windows 2000™, Windows CE™, Windows ME™, are registered trademarks from
Microsoft Corporation.
Contents
1 Introduction
1.1
1.2
1.3
1.4
Related Documents........................................................................ 5
Product Variants............................................................................. 6
cB-0901 ......................................................................................... 7
Block Diagram cB-0901.................................................................. 8
2 Electrical Interface and Connectors
2.1
2.2
2.3
2.4
2.5
Pin Numbering ............................................................................. 10
Pin Description............................................................................. 11
Characteristics ............................................................................. 19
Hardware Reset ........................................................................... 23
Power Control .............................................................................. 23
3 Operating Status
24
4 Antennas
25
4.1
4.2
Surface Mounted Antenna (Internal) ............................................. 25
External antennas ........................................................................ 26
5 Mounting Information
5.1
5.2
5.3
5.4
5.5
Board Outlines ............................................................................. 29
Using the J2/J3 Board-to-Board Connectors................................. 31
Using Press-Fit Nuts for Mounting the Module.............................. 35
Using the J6 PCB solder pads on the edge................................... 35
Antenna Issues ............................................................................ 35
6 Bluetooth Information
6.1
6.2
38
Declaration of Conformity ............................................................. 38
FCC, IC and Safety Compliance................................................... 39
UL listing information.................................................................... 43
Compliance with RoHS directive................................................... 43
Appendix A A.1
A.2
36
General information...................................................................... 36
Bluetooth Qualification information ............................................... 37
7 Regulatory Information
7.1
7.2
7.3
7.4
29
Application Notes
44
Step-by-Step Guide...................................................................... 44
Design Examples ......................................................................... 45
Version 1.1 - 2005-11
1 Introduction
1.1 Related Documents
There are some documents related to the Serial Port Adapter:
The Serial Port Adapter AT Commands document contains a description of the AT
commands supported in the Serial Port Adapter. It also contains information on how to
use the AT commands to create Bluetooth applications.
The OEM Serial Port Adapter Electrical & Mechanical Datasheet (this document)
contains important information about the OEM Serial Port Adapter. Read this document
if you are using the OEM Serial Port Adapter.
Version 1.1 - 2005-11
1.2 Product Variants
This Electrical and Mechanical datasheet contains information about the 12 variants of OEM
Serial Port Adapters based on the PCB cB-0901. This document makes references to the
OEM Module ID, not the Product Name (see Table 1).
Table 1: Product variants
Class 1 +17dBm
External antenna
Class 1 +17dBm
Internal antenna
Class 1 +7dBm
External antenna
Class 1 +7dBm
Internal antenna
Product Name
OEM Module ID / Bluetooth Type
FCC Type No.
Description
CB-OEMSPA311i-04
cB-0052
cB-0901-0301
Class 1 / +7dBm
5mW
OEM Serial Port Adapter
311i with internal antenna,
no connectors
CB-OEMSPA311i-06
cB-0054
cB-0901-0301
Class 1 / +7dBm
5mW
OEM Serial Port Adapter
311i with internal antenna,
JST 6-pol
CB-OEMSPA311i-07
cB-0055
cB-0901-0301
Class 1 / +7dBm
5mW
OEM Serial Port Adapter
311i with internal antenna,
Flexfilm
CB-OEMSPA311x-04
cB-0056
cB-0901-0301
Class 1 / +7dBm
5mW
OEM Serial Port Adapter
311x with external antenna,
no connectors
CB-OEMSPA311x-06
cB-0058
cB-0901-0301
Class 1 / +7dBm
5mW
OEM Serial Port Adapter
311x with external antenna,
JST 6-pol
CB-OEMSPA311x-07
cB-0059
cB-0901-0301
Class 1 / +7dBm
5mW
OEM Serial Port Adapter
311x with external antenna,
Flexfilm
CB-OEMSPA331i-04
cB-0060
cB-0901-0302
OEM Serial Port Adapter
Class 1 / +16.9dBm
331i with internal antenna,
49mW
no connectors
CB-OEMSPA331i-06
cB-0062
cB-0901-0302
OEM Serial Port Adapter
Class 1 / +16.9dBm
331i with internal antenna,
49mW
JST 6-pol
CB-OEMSPA331i-07
cB-0063
cB-0901-0302
OEM Serial Port Adapter
Class 1 / +16.9dBm
331i with internal antenna,
49mW
Flexfilm
CB-OEMSPA331x-04
cB-0064
cB-0901-0302
OEM Serial Port Adapter
Class 1 / +16.9dBm
331x with external antenna,
49mW
no connectors
CB-OEMSPA331x-06
cB-0066
cB-0901-0302
OEM Serial Port Adapter
Class 1 / +16.9dBm
331x with external antenna,
49mW
JST 6-pol
CB-OEMSPA331x-07
cB-0067
cB-0901-0302
OEM Serial Port Adapter
Class 1 / +16.9dBm
331x with external antenna,
49mW
Flexfilm
Version 1.1 - 2005-11
1.3 cB-0901
cB-0901 is a small size Bluetooth module based on the Phillips BGB203 system in package
(SiP). The BGB203 has on chip SRAM and FLASH stacked in the same package. The modules are available in many variants with different antenna / connectors and output power
combinations. See Picture 1 - Picture 3 for some of the available models. All models are described in Table 1.
Picture 1: CB-OEMSPA331x-06
OEM Serial Port Adapter long
range with external antenna and a
JST 6-pol connector
Picture 2: CB-OEMSPA311i-07
OEM Serial Port Adapter short
range with internal antenna and a
flexfilm connector
Version 1.1 - 2005-11
Picture 3: CB-OEMSPA331i-06
OEM Serial Port Adapter long
range with internal antenna and a
JST 6-pol connector
1.4 Block Diagram cB-0901
Figure 1: Block diagram of cB-0901
Version 1.1 - 2005-11
2 Electrical Interface and Connectors
This section describes the signals available on the module interface connectors.
There are four ways to connect to the OEM Serial Port Adapter:
• Via the PCB solder pads on the edge of the PCB, J6 (see Picture 4). See Section
5.4 for more information.
•
Via the 2x20-pin 1mm pitch board-to-board (one piece part) connectors, J2 through
J3. The J2 to J3 connectors on the OEM Serial Port Adapter exist on the module
only as a mating PCB-layout pattern (see Picture 5). See Section 5.2 for more information.
Optional:
•
Via the JST connector, J8 (see Picture 6). The connector is a 6 poles wire connector. The pitch is 1mm and the. The connector is from JST with part number SM06BSRSS-TB.
•
Via the flexfilm connector, J7 (see Picture 7). The connector is a 16 poles flexfilm
connector. The pitch is 0.5mm and the flexfilm should be 0.3mm thick. The connector is from Hirose with part number FH19S-16S-0.5SH(05).
J3
J2
J6
Picture 4: J6 are available on the edge of the cB0901.
J8
Picture 5: J2 to J3 are available on cB-0901. Some
of the not used pads are not visible.
J7
Picture 6: JST 6-pol connector, J8.
Version 1.1 - 2005-11
Picture 7: Flexfilm connector, J7.
2.1 Pin Numbering
2.1.1 J2, J3 and J6 Connectors
Figure 2: Bottom view of the PCB with the pinning of the J2, J3 and the J6 connector.
2.1.2 JST 6-pol, J8
Figure 3: Top view of the PCB with the pinning of the J8 connector.
2.1.3 Flexfilm, J7
Figure 4: Top view of the PCB with the pinning of the J7 connector.
Version 1.1 - 2005-11
10
2.2 Pin Description
2.2.1 J2 Connector
Table 2: Signals on J2.
J2
Pin Name
Pin Nr
Signal Name
Signal
Level
Type
Description
1-2
VSS
Ground
Ground
GND
3-4
VCC_3V3
Power
3.3V
3.0 – 6.0 VDC for
CB-OEMSPA311 modules
3.3 – 6.0 VDC for
CB-OEMSPA331 modules
5-10
11
Reserved
RED/Mode
Red LED output
Reserved, do not connect.
CMOS
In/Out
Logic Red LED Signal (see Chapter 3, Table 14). Pin is used as
input for approximately 500ms at
startup.
Mode:
Not used on cB-0901.
This pin is also used to select
Logic level mode (instead of
RS232) for connectBlue product
with internal RS232 driver. To be
compatible with these products
check the datasheet for these
products about this signal.
See section A.2.3.2 for design
examples.
12
Switch-0
Function switch
CMOS
In
Used for the “Connect on external
signal” function, see the Serial Port
Adapter AT command Specification for more information on the
Function switch.
See section A.2.3.4 for design
examples.
Version 1.1 - 2005-11
11
J2
Pin Name
Pin Nr
Signal Name
13
Green LED output and CMOS
Restore switch
GREEN/
Switch-1
Signal
Level
Type
Description
In/Out
This signal is multiplexed:
GREEN:
Logic Green LED Signal (see
Chapter 3, Table 14). Not valid
until 500ms after startup.
Switch-1:
If the level on this pin is set to Low
the units goes back to default serial settings.
The “Restore Default” input is only
active during the first 500ms after
startup.
See the Serial Port Adapter AT
command Specification for more
information on the Restore switch.
See section A.2.3.3 for design
examples.
14
BLUE
Blue LED output
CMOS
Out
Logic Blue LED Signal (see Chapter 3, Table 14).
Note:
Signal will flicker at data transmission.
See section A.2.3.1 for design
examples.
15
UART-CTS*
Clear To Send
CMOS
In
16
UART-TxD*
Transmit Data
CMOS
Out
17
UART-RTS*
Request To Send
CMOS
Out
18
UART-RxD*
Receive Data
CMOS
In
19
UART-DTR*
Data Terminal Ready
CMOS
Out
20
UART-DSR*
Data Set Ready
CMOS
In
Hardware flow control.
Hardware flow control.
* All signals are logic level UART signals (typically 0 - 3VDC)
Version 1.1 - 2005-11
12
2.2.2 J3 Connector
Table 3: Signals on J3
J3
Pin Nr
Pin Name
Signal Name
Signal
Level
Type
1-8
Description
Reserved, do not connect.
SerialSelect-0
Serial Select 0
CMOS
Out
Reserved, do not connect.
10
SerialSelect-1
Serial Select 1
CMOS
Out
Reserved, do not connect.
11-18
19
Reserved, do not connect.
RESET
Hardware reset
CMOS
In
Active low. Must be open drain
collector.
See section 2.4 for design examples.
20
Reserved, do not connect.
Version 1.1 - 2005-11
13
2.2.3 J6 Connector (Solder pads)
Table 4: Signals on J6
J6
Pin Nr
Pin Name
Signal Name
Signal
Level
Type
Description
RESET
Hardware reset
CMOS
In
Active low. Must be open drain
collector.
See section 2.4 for design examples.
VSS
Ground
Ground
GND
VCC_3V3
Power
3.3V
3.0 – 6.0 VDC for
CB-OEMSPA311 modules
3.3 – 6.0 VDC for
CB-OEMSPA331 modules
UART-DTR*
Data Terminal Ready
CMOS
Out
RED/Mode
Red LED output
CMOS
Out
Logic Red LED Signal (see
Chapter 3, Table 14). Pin is
used as input for approximately
500ms at startup.
Mode:
Not used on cB-0901.
This pin is also used to select
Logic Level mode (instead of
RS232) for connectBlue product with internal RS232 driver.
To be compatible with these
products check the datasheet
for these products about this
signal.
See section A.2.3.2 for design
examples.
Version 1.1 - 2005-11
14
J6
Pin Nr
Pin Name
Signal Name
Signal
Level
GREEN/
Switch-1
Green LED output and CMOS
Restore switch
Type
Description
In/Out
This signal is multiplexed:
GREEN:
Logic Green LED Signal (see
Chapter 3, Table 14). Not valid
until 500ms after startup.
Switch-1:
If the level on this pin is set to
Low the units goes back to
default serial settings.
The “Restore Default” input is
only active during the first
500ms after startup.
See the Serial Port Adapter AT
command Specification for
more information on the Restore switch.
See section A.2.3.3 for design
examples.
BLUE
Blue LED output
CMOS
Out
Logic Blue LED Signal (see
Chapter 3, Table 14).
Note:
Signal will flicker at data transmission.
See section A.2.3.1 for design
examples.
UART-CTS*
Clear To Send
CMOS
In
UART-TxD*
Transmit Data
CMOS
Out
10
UART-RTS*
Request To Send
CMOS
Out
11
UART-RxD*
Receive Data
CMOS
In
12-15
16
17-22
Hardware flow control.
Hardware flow control.
Reserved, do not connect.
UART-DSR*
Data Set Ready
CMOS
In
Attachment pads
Not electrically connected
* All signals are logic level UART signals (typically 0 - 3VDC)
Version 1.1 - 2005-11
15
2.2.4 J7 Connector (Flexfilm)
Table 5: Signals on J7
J7
Pin Nr
Pin Name
Signal Name
Signal
Level
Type
Description
RESET
Hardware reset
CMOS
In
Active low. Must be open drain
collector.
See section 2.4 for design examples.
DSR
Data Set Ready
CMOS
In
VSS
Ground
Ground
GND
VCC_3V3
Power
3.3V
3.0 – 6.0 VDC for
CB-OEMSPA311 modules
3.3 – 6.0 VDC for
CB-OEMSPA331 modules
DTR
Data Terminal Ready
CMOS
Out
RED/Mode
Red LED output
CMOS
Out
Logic Red LED Signal (see
Chapter 3, Table 14). Pin is
used as input for approximately
500ms at startup.
Mode:
Not used on cB-0901.
This pin is also used to select
Logic Level mode (instead of
RS232) for connectBlue product with internal RS232 driver.
To be compatible with these
products check the datasheet
for these products about this
signal.
See section A.2.3.2 for design
examples.
Version 1.1 - 2005-11
16
J7
Pin Nr
Pin Name
Signal Name
Signal
Level
GREEN/
Switch-1
Green LED output and CMOS
Restore switch
Type
Description
In/Out
This signal is multiplexed:
GREEN:
Logic Green LED Signal (see
Chapter 3, Table 14). Not valid
until 500ms after startup.
Switch-1:
If the level on this pin is set to
Low the units goes back to
default serial settings.
The “Restore Default” input is
only active during the first
500ms after startup.
See the Serial Port Adapter AT
command Specification for
more information on the Restore switch.
See section A.2.3.3 for design
examples.
BLUE
Blue LED output
CMOS
Out
Logic Blue LED Signal (see
Chapter 3, Table 14).
Note:
Signal will flicker at data transmission.
See section A.2.3.1 for design
examples.
UART-TxD*
Transmit Data
CMOS
Out
10
UART-RxD*
Receive Data
CMOS
In
11
UART-CTS*
Clear To Send
CMOS
In
Hardware flow control.
12
UART-RTS*
Request To Send
CMOS
Out
Hardware flow control.
13-16
Reserved, do not connect.
* All signals are logic level UART signals (typically 0 - 3VDC)
Version 1.1 - 2005-11
17
2.2.5 J8 Connector (JST 6-pol)
Table 6: Signals on J8
J8
Pin Nr
Pin Name
Signal Name
Signal
Level
Type
Description
VSS
Ground
Ground
GND
VCC_3V3
Power
3.3V
3.0 – 6.0 VDC for
CB-OEMSPA311 modules
3.3 – 6.0 VDC for
CB-OEMSPA331 modules
UART-TxD*
Transmit Data
CMOS
Out
UART-RxD*
Receive Data
CMOS
In
UART-CTS*
Clear To Send
CMOS
In
Hardware flow control.
UART-RTS*
Request To Send
CMOS
Out
Hardware flow control.
* All signals are logic level UART signals (typically 0 - 3VDC)
Version 1.1 - 2005-11
18
2.3 Characteristics
The cB-0901 board is designed to be fully interchangeable. If the host product has space for
the board it is possible to choose freely between a cB-OEMSPA311i/x or cB-OEMSPA331i/x
device without any change of the host product. If you design your power supply for cBOEMSPA331i/x the modules will be fully interchangeable.
The cB-0901 module has a linear power supply, which means that the current is constant if
the voltage supply is changed. See Table 10.
For more information about low power modes see Serial Port Adapter AT commands Specification.
2.3.1 Power supply
2.3.1.1 cB-OEMSPA311i/x products
Table 7: Power supply
Symbol
Parameter
Value
VCC_3V3 Power supply (Unregulated*)
Unit
Min
3.0 VDC
Max
6.0 VDC
* The module is equipped with an internal linear voltage regulator.
Table 8: Current consumption
Symbol
Mode
Value
ICC
Not connected
Average
7.9
mA
Peak
48
mA
Average
1.0
mA
Peak
1.2
mA
Average
1.8
mA
Peak
48
mA
Connectable,
discoverable
Average
1.8
mA
Peak
48
mA
Idle or Receiving
Average
17
mA
Peak
55
mA
Average
22
mA
Peak
58
mA
Average
39
mA
Peak
70
mA
@ VCC_3V3 = 3.3V
Not conNot connectable
nected, stop
mode enabled
Connectable
Connected
Unit
Transmitting
@115.2kbit/s
Inquiry
Version 1.1 - 2005-11
19
2.3.1.2 cB-OEMSPA331i/x products
Table 9: Power supply
Symbol
Parameter
Value
VCC_3V3 Power supply (Unregulated*)
Unit
Min
3.3 VDC
Max
6.0 VDC
* The module is equipped with an internal linear voltage regulator.
Table 10: Current consumption
Symbol
Mode
ICC
Not connected
Stop mode not enabled.
Average
19
mA
Peak
63
mA
Not conNot connectable
nected, stop
mode enConnectable
abled
Average
10
mA
Peak
13
mA
Average
11
mA
Peak
60
mA
Connectable,
discoverable
Average
11
mA
Peak
60
mA
Idle or Receiving
Average
22
mA
170
mA
53
mA
170
mA
84
mA
150
mA
@ VCC_3V3 = 3.3V
Value
Connected
Peak
Transmitting
@115.2kbit/s
Average
Peak
Average
Inquiry
Peak
Version 1.1 - 2005-11
Unit
20
2.3.2 Input/Output signals
2.3.2.1 cB-OEMSPA311i/x products
Table 11: Input/output signals
Symbol
Parameter
Value
VIN Low
Logic LOW level input voltage on all logic Min
input pins except Switch-0
Max
-0.4
0.80
Min
-0.4
Max
0.15
Min
2.05
Max
3.35
Logic LOW level input voltage Switch-0
VIN High
Logic HIGH level input voltage
Unit
VOUT Low
Logic LOW level output voltage
Max
0.4
VOUT High
Logic HIGH level output voltage
Min
2.42
IGPIO
Sink and source current
Max
mA
2.3.2.2 cB-OEMSPA331i/x products
Table 12: Input/output signals
Symbol
Parameter
VIN Low
Logic LOW level input voltage on all logic Min
input pins except Switch-0
Max
-0.4
0.85
Logic LOW level input voltage Switch-0
Min
-0.4
Max
0.15
Min
2.15
Max
3.45
VIN High
Value
Logic HIGH level input voltage
Unit
VOUT Low
Logic LOW level output voltage
Max
0.4
VOUT High
Logic HIGH level output voltage
Min
2.55
IGPIO
Sink and source current
Max
Version 1.1 - 2005-11
mA
21
2.3.3 Environmental
Table 13: Temperatures characteristics
Parameter
Product Variant
Storage temperature
Maximum operating temperature
Value
Unit
Min
All
-40
°C
Max
All
+125
°C
Min
CB-OEMSPA311i/x-04
CB-OEMSPA331i/x-04
CB-OEMSPA311i/x-07
CB-OEMSPA331i/x-07
-30
°C
CB-OEMSPA311i/x-06
CB-OEMSPA331i/x-06
-25
°C
CB-OEMSPA311i/x-04
CB-OEMSPA331i/x-04
CB-OEMSPA311i/x-06
CB-OEMSPA331i/x-06
+85
°C
CB-OEMSPA311i/x-07
CB-OEMSPA331i/x-07
+80
°C
Max
Version 1.1 - 2005-11
22
2.4 Hardware Reset
A hardware RESET input is available on the J3, J6 and J7 connectors (see section 2.1). An
external reset source must be open drain collector, see section A.2.4 for design examples.
The RESET pin is internally pulled-up with 120kΩ.
2.5 Power Control
For more information about “Stop Mode” and other low power modes, see the Serial Port
Adapter AT command Specification.
Version 1.1 - 2005-11
23
3 Operating Status
The module can be in different modes (see the Serial Port Adapter AT command Specification for more information about the modes) and the RED, GREEN and BLUE signals can be
used to detect or indicating the status, see Table 14. The LED signals are active LOW.
Table 14: Signal states in different module modes
Serial Port Adapter Mode
Status
RGB LED
Color
GREEN
GPIO
BLUE
GPIO
RED
GPIO
Data mode
IDLE
Green
LOW
HIGH
HIGH
AT mode
IDLE
Orange
LOW
HIGH
LOW
Data mode, AT mode
CONNECTING* Purple
HIGH
LOW
LOW
Data mode, AT mode
CONNECTED*
HIGH
LOW
HIGH
Blue
* On data activity the active LEDs flashes and will be HIGH for 50-100ms. For information on how to suppress the
flashes see section A.2.3.1.
DTR signal can be set to indicate an active Bluetooth link. For more information see Serial Port Adapter AT command Specification.
Version 1.1 - 2005-11
24
4 Antennas
There are 2 different antenna options available:
• An internal surface mounted (SMD) antenna.
•
An external antenna should be connected to a U.FL connector. Many different external antennas are available.
See section 5.1 for more information on antenna placement.
This chapter gives an overview of the different antenna options.
4.1 Surface Mounted Antenna (Internal)
The unit cannot be mounted in a metal-shielded enclosure with this antenna.
Part Number
OEMSPA 311i / 331i
Antenna name
Rufa 2.4 GHz
Manufacture
gigaAnt
Polarization
Linear
Gain (Max)
+0.5 dBi (mounted on
this PCB)
Antenna size
(LxWxH)
12.8x3.9x1.1 mm
Comment
The antenna gain is very dependent of the mounting of the module.
See section 5.4 for mounting the module considering the antenna.
Version 1.1 - 2005-11
25
4.2 External antennas
The external antennas are connected to the board through a U.FL connector. Some of the
antennas are connected directly to the U.FL connector of the board and some are connected
using an SMA connected through a short U.FL to SMA adapter cable.
4.2.1 Antenna Accessories
Part Number
cB-ACC-18
Name
U.FL to SMA
adapter cable
Connector
U.FL and
SMA female
Cable length
120 mm
Cable loss
Less than 0.5dB
Comment
The SMA connector may be mounted in a panel. Not approved for use in
the US and Canada.
4.2.2 Antennas
Part Number
cB-ACC-16
Name
WCR-2400-SMA
Manufacture
Centurion
Type
½ wave dipole
Polarization
Vertical
Gain
+2.5dBi
Size
100 mm (Straight)
Connector
SMA male
Comment
To be mounted on the U.FL to SMA adapter cable.
Approval
Not approved for use in the US and Canada.
Version 1.1 - 2005-11
26
Part Number
cB-ACC-27
Name
WCR-2400-IP04
Manufacture
Centurion
Type
½ wave dipole
Polarization
Vertical
Gain
+2.0dBi
Size
108 mm (Straight)
Connector
U.FL connector
Comment
To be mounted on the U.FL connector on the PCB.
Approval
Approved for use in the US and Canada
Part Number
cB-ACC-17
Name
Reel planTec
Bluetooth m70
Manufacture
Reel
Size (∅xH)
75x20 mm
Gain
+1dBi
Mounting
M16x13.6 mm
Cable length
3m
Connector
SMA male
Other info
Waterproof (IP67)
Comment
To be mounted on the U.FL to SMA adapter cable.
Approval
Not approved for use in the US and Canada.
Part Number
cB-ACC-23
Name
Mobile Mark Stub
Manufacture
Mobile Mark
Communications
Antennas
Type
¼ wave dipole
Polarization
Vertical
Gain
0dBi
Connector
SMA male
Comment
To be mounted on the U.FL to SMA adapter cable
Version 1.1 - 2005-11
27
Approval
Not approved for use in the US and Canada.
Part Number
cB-ACC-21
Name
Rugged SMA
Manufacture
Radiall/Larsen
Type
½ wave dipole
Polarization
Vertical
Gain
2dBi
Connector
SMA male
Comment
To be mounted on the U.FL to SMA adapter cable
Approval
Not approved for use in the US and Canada.
Version 1.1 - 2005-11
28
5 Mounting Information
5.1 Board Outlines
5.1.1 cB-0901
Figure 5: cB-0901 dimensions [mm]. The J2 pads are longer to fit both the single and double row ASP connectors (see section 5.2). Some of the not used pads of J3 are not visible
Version 1.1 - 2005-11
29
5.1.2 Mounting Holes
There are 2 x 2.3mm mounting holes on cB-0901. The reasons for the 2.3mm holes are that
the threaded M2 holes on the single and double row connectors (see section 5.2.1) are not
aligned. The outer tangents of the 2.3mm holes align the module if the single row connectors
are used and the inner if double row connectors are used (see Figure 6).
Choose the outer tangent (CC distance 27.24mm) if the module is aligned and mounted with
some other technique based on M2 screws (e.g. press-fit nuts), see Figure 7 and Figure 8.
Figure 6: The 2.3mm mounting holes [mm]
Version 1.1 - 2005-11
30
5.2 Using the J2/J3 Board-to-Board Connectors
The board-to-board connector should be a 1mm pitch one-piece part connector. The recommended manufacture is Samtec with many connector options available; see section
5.2.1.1 and 5.2.1.2.
Chapter 2 contains more information about the connector and the electrical interface.
5.2.1 Suitable One-Piece Part Connectors
5.2.1.1 Single row connectors
These connectors are a single row connector and can be used if only J2 is needed.
This connector has a profile height of 1.65 mm and this has to be considered if components
are to be mounted on the motherboard under the OEM Serial Port Adapter board.
There are alignment pins on the bottom side of the connector.
The connector is available with M2 threaded inserts that fit the mounting holes on the board
(see section 5.1.2). You may screw the OEM Serial Port Adapter board directly into these inserts. If you want to have a tighter and more secure mounting, you may use longer screws
and secure it using a nut on the backside of the motherboard.
Another way to mount the module is to use press-fit nuts on the motherboard and skip the
M2 threads on the connector, see section 5.3 for more information about press-fit nuts.
Table 15: Single row connectors from Samtec.
Samtec order
number
Quote
number
Equivalent part
Package
Remark
ASP-118645-01
55392
SEI-120-02-GF-S-AB
Tube
Align pin on bottom
side only
ASP-118645-02
55392
SEI-120-02-GF-S-AB-TR
Tape-n-Reel
Align pin on bottom
side only
ASP-118579-01
55392
SEI-120-02-GF-S-M-AB
Tube
With M2 threaded
inserts and align pin on
bottom side only
ASP-118579-02
55392
SEI-120-02-GF-S-M-AB-TR
Tape-n-Reel
With M2 threaded
inserts and align pin on
bottom side only
NOTE:
When ordering connectors from Samtec or an official Samtec distributor, please use the ASP
order number and refer to the connectBlue global quote number for best price. For technical
questions regarding the Samtec connectors please contact connectBlue or Samtec at
(Scandinavia@samtec.com).
See Figure 7 for more information about the connector and necessary measurements on the
motherboard. The large mounting holes on the motherboard are designed for press-fit nuts
and could be smaller if press-fit nuts are not used. The mounting holes are aligned with the
outer tangent of the 2.3mm mounting holes of the module (see section 5.1.2).
Version 1.1 - 2005-11
31
Figure 7: Host PCB layout [mm] for single row connector.
Version 1.1 - 2005-11
32
5.2.1.2 Double row connectors
This connector is a double row connector and can be used if both J2 and J3 are needed.
This connector has a height of 3.0mm and this has to be considered if components are to be
mounted on the motherboard under the OEM Serial Port Adapter board. The connector is
also available with a height of 6.0mm and 10.0mm (The FSI-120 serie from Samtec).
There are alignment pins on the bottom side of the connector.
The connector is available with M2 threaded inserts that fit the mounting holes on the board
(see section 5.1.2). You may screw the OEM Serial Port Adapter board directly into these inserts. If you want to have a tighter and more secure mounting you may use longer screws
and secure it using a nut on the backside of the motherboard.
Another way to mount the module is to use press-fit nuts on the motherboard and skip the
M2 threads on the connector, see section 5.3 for more information about press-fit nuts.
Table 16: Double row connectors from Samtec.
Samtec order
number
Quote
number
Equivalent part
Package
Remark
REF-120021-01
55392
FSI-120-03-G-D-AB
Tube
Align pin on bottom
side only
REF-120021-02
55392
FSI-120-03-G-D-AB-K-TR
Tape-n-Reel
Align pin on bottom
side only
REF-120018-01
55392
FSI-120-03-G-D-M-AB
Tube
With M2 threaded
inserts and align pin
on bottom side only
REF-120018-02
55392
FSI-120-03-G-D-M-AB-K-TR
Tape-n-Reel
With M2 threaded
inserts and align pin
on bottom side only
NOTE:
When ordering connectors from Samtec or an official Samtec distributor, please use the REF
order number and refer to the connectBlue global quote number for best price. For technical
questions regarding the Samtec connectors please contact connectBlue or Samtec at
(Scandinavia@samtec.com).
See Figure 8 for more information about the connector and necessary measurements on the
motherboard. The large mounting holes on the motherboard are designed for press-fit nuts
and could be smaller if press-fit nuts are not used (see section 5.1.2).
Version 1.1 - 2005-11
33
Figure 8: Host PCB layout [mm] for double row connector.
Version 1.1 - 2005-11
34
5.3 Using Press-Fit Nuts for Mounting the Module
A press-fit nut is pressed into the PCB from the bottom side with a special press tool. M2
sized press-fit nuts are suitable for the modules (see Figure 7 and Figure 8) and are manufactured by PEM Fastening Systems (www.pemnet.com), part no KFS2-M2 (see Figure 9).
Be careful with the distance between the nuts regarding alignment, see section 5.1.2.
Figure 9: KFS2-M2 press-fit nut.
Spacer-pipes are recommended to use between the PCBs when press-fit nuts are used.
5.4 Using the J6 PCB solder pads on the edge
The CB-OEMSPA311i/x and CB-OEMSPA331i/x complies with the RoHS directive with lead
free solder paste. The solder paste used is SAC 305 (NC254).
The host PCB footprint should not contain any traces or vias under the module except the
pads interfacing the J6 pads to avoid contact with traces/vias on the module. The host pads
which is soldered to the J6 pads should reach 0.5-1.0mm under the PCB and some mm outside the module. No other pads then the J6 should be soldered to the host PCB. See section
2.1.1 for more info about the J6 pads.
5.5 Antenna Issues
The unit cannot be mounted arbitrary, because of the radio communication. The unit with an
internal surface mounted antenna (CB-OEMSPA311i and CB-OEMSPA331i) cannot be
mounted in a metal enclosure, see Figure 10.
No metal casing or plastics using metal flakes should be used, avoid also metallic based
paint or laquer. Keep a minimum clearance of 10mm between the antenna and the casing.
Keep 10 mm free space from metal around the antenna including under and above.
If a metal enclosure is required, one of the external antenna options has to be used. See
section 4.2 for more information on the antenna options available.
Figure 10: SMD Antenna restrictions.
Version 1.1 - 2005-11
35
6 Bluetooth Information
6.1 General information
In the tables below you can find information about Bluetooth properties. The cB-0901 module
is available in two output power versions both Bluetooth Class 1. The output power of the
cB-OEMSPA311i/x device is max +7dBm (5mW) and the output power of the cBOEMSPA331i/x device is max +16.9dBm (49mW).
Table 17: Bluetooth information CB-OEMSPA-311i/x
Parameter
Data
Bluetooth radio
Philips BGB203
Bluetooth base band controller
Philips BGB203
RF output power
Class 1, max 7dBm (5mW)
Receive sensitive level
-90dBm
Receive input level (max)
+15dBm
Output frequency
2.402 –2.480 GHz, ISM band.
Bluetooth stack
Embedded host stack
Bluetooth qualification
2.0
Table 18: Bluetooth information CB-OEMSPA-331i/x)
Parameter
Data
Bluetooth radio
Phillips BGB203
Bluetooth base band controller
Phillips BGB203
Radio power amplifier
muRata MF2400PS-AL0909 (+20dB)
RF output power
Class 1, max 16.9dBm (49mW)
Receive sensitive level
-89dBm
Receive input level (max)
+16dBm
Output frequency
2.402 –2.480 GHz, ISM band.
Bluetooth stack
Embedded host stack
Bluetooth qualification
2.0
Version 1.1 - 2005-11
36
6.2 Bluetooth Qualification information
All products based on the PCB cB-0901-03 have been qualified according to the Bluetooth
specification 2.0.
Table 19 - Bluetooth Qualification information
Module
Bluetooth specification QPLN reference
Qualification date
cB-OEMSPA311i /x
2.0
B02598
2005-10-15
cB-OEMSPA331i/x
2.0
B02599
2005-10-15
The following Bluetooth profiles are supported (covered functionality):
• Generic Access Profile (GAP)
•
•
Serial Port Profile (SPP)
Dial-up Networking Profile (DUN GW, DUN DT)
When creating end products based on the Serial Port Adapter the following applies:
•
•
•
•
The end product does not have to be re-qualified.
The end product or the end product documentation based on:
o cB-OEMSPA311i /x products shall make the following information available:
“This product contains a Bluetooth qualified product QPLN B02598”.
o cB-OEMSPA331i /x products shall make the following information available:
“This product contains a Bluetooth qualified product QPLN B02599”.
The Bluetooth Trademark may be placed on the end product (requires Bluetooth SIG
membership, for more information see www.bluetooth.org).
The Bluetooth Trademark may be used in material related to the end product (requires
Bluetooth SIG membership, for more information see www.bluetooth.org).
For more information please contact connectBlue.
Version 1.1 - 2005-11
37
7 Regulatory Information
7.1 Declaration of Conformity
We, connectBlue AB, of
Norra Vallgatan 64 3V
SE-211 22 Malmö, Sweden
declare under our sole responsibility that our products:
cB-OEMSPA311i/x (cB-0052, cB-0054, cB-0055, cB-0056, cB-0058, cB-0059),
cB-OEMSPA331i/x (cB-0060, cB-0062, cB-0063, cB-0064, cB-0066, cB-0067),
cB-OEMHCI311i/x (cB-0086, cB-0087), cB-OEMHCI331i/x (cB-0088, cB-0089),
OEM Module Adapter III (cB-0068).
to which this declaration relates, conforms to the following product specifications:
R&TTE Directive 1999/5/EC
EN 300 328 V1.6.1 (2004-11)
EMC Directive: 89/336/EEC
EN 301 489-1 V1.4.1 (2002-08)
EN 301 489-17 V1.2.1 (2002-08)
EN 61000-6-2 (2001)
Safety Compliance
EN 60950-1:2001 and/or IEC 60950-1:2001 (1st Edition)
EN 60950-1/A11:2004 + Corrigendum:2004
Medical Electrical Equipment
IEC 60601-1-2 (2001)
24/09/2005 Malmö, Sweden
Mats Andersson
CTO of connectBlue AB
If a cB-OEMSPA331i/x is used within EU a notification must be made to each of the national
authorities responsible for radio spectrum management of the intention to place radio
equipment that uses frequency bands whose use is not harmonized throughout the EU, on
its national market.
More information at: http://europa.eu.int/comm/enterprise/rtte/gener.htm
Version 1.1 - 2005-11
38
7.2 FCC, IC and Safety Compliance
See Table 1 for information about the different product variants.
7.2.1 Compliance for cB-0901-0301
7.2.1.1 FCC Statement for cB-0901-0301
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna
•
Increase the separation between the equipment and receiver
•
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
7.2.1.1.1 Antenna
Our module type cB-0901-0301 is for OEM integrations only. The end-user product will be
professionally installed in such a manner that only the authorized antennas are used.
7.2.1.1.2 Caution
Any changes or modifications NOT explicitly APPROVED by connectBlue AB could cause
the module to cease to comply with FCC rules part 15, and thus void the user’s authority to
operate the equipment.
7.2.1.2 IC Compliance
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
This device has been designed to operate with an antenna having a maximum gain of 2.5
dBi.
Having a higher gain is strictly prohibited per regulations of Industry Canada. The required
antenna impedance is 50 ohms.
To reduce potential radio interference to other users, the antenna type and its gain should be
so chosen that the equivalent isotropically radiated power (EIRP) is not more than that required for successful communication.
The installer of this radio equipment must ensure that the antenna is located or pointed such
that it does not emit RF field in excess of Health Canada limits for the general population;
consult Safety Code 6, obtainable from Health Canada’s website www.hc-sc.gc.ca/rpb.
7.2.1.3 Safety
Version 1.1 - 2005-11
39
The unit must be supplied by a limited power source in according to EN 60950-1.
7.2.1.4 Labeling Requirements for End Product
For an end product using the product cB-0901-0301 there must be a label containing, at
least, the following information:
This device contains
FCC ID: PVH090103S
IC: 5325A-090103S
The label must be affixed on an exterior surface of the end product such that it will be visible
upon inspection in compliance with the modular approval guidelines developed by the FCC.
Where the module will be installed in final products larger than 8 cm x 10 cm following
statement has to be placed ONTO the device.
“This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.”
In case, where the final product will be installed in locations where the end-consumer is not
able to see the FCC ID and/or this statement, the FCC ID and the statement shall also be included in the end-product manual.
Version 1.1 - 2005-11
40
7.2.2 Compliance for cB-0901-0302
7.2.2.1 FCC Statement for cB-0901-0302
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna
•
Increase the separation between the equipment and receiver
•
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
7.2.2.1.1 Antenna
Our module type cB-0901-0302 is for OEM integrations only. The end-user product will be
professionally installed in such a manner that only the authorized antennas are used.
7.2.2.1.2 Caution
Any changes or modifications NOT explicitly APPROVED by connectBlue AB could cause
the module to cease to comply with FCC rules part 15, and thus void the user’s authority to
operate the equipment.
7.2.2.2 IC Compliance
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
This device has been designed to operate with an antenna having a maximum gain of 9dBi.
Having a higher gain is strictly prohibited per regulations of Industry Canada. The required
antenna impedance is 50 ohms.
To reduce potential radio interference to other users, the antenna type and its gain should be
so chosen that the equivalent isotropically radiated power (EIRP) is not more than that required for successful communication.
The installer of this radio equipment must ensure that the antenna is located or pointed such
that it does not emit RF field in excess of Health Canada limits for the general population;
consult Safety Code 6, obtainable from Health Canada’s website www.hc-sc.gc.ca/rpb.
7.2.2.3 Safety
The unit must be supplied by a limited power source in according to EN 60950-1.
7.2.2.4 Labeling Requirements for End Product
For an end product using the product cB-0901-0302 there must be a label containing, at
least, the following information:
Version 1.1 - 2005-11
41
This device contains
FCC ID: PVH090103L
IC: 5325A-090103L
The label must be affixed on an exterior surface of the end product such that it will be visible
upon inspection in compliance with the modular approval guidelines developed by the FCC.
Where the module will be installed in final products larger than 8 cm x 10 cm following
statement has to be placed ONTO the device.
“This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.”
In case, where the final product will be installed in locations where the end-consumer is not
able to see the FCC ID and/or this statement, the FCC ID and the statement shall also be included in the end-product manual.
7.2.2.5 RF-exposure Statement for cB-0901-0302
This modular transmitter MUST have a separation distance of at least 20 cm between the
antenna and the body of the user or nearby persons, excluding hands, wrists, feet, and ankles.
If the radio module is installed in a laptop display, transmission MUST be prevented if the lid
is closed to ensure that the minimum distance of 20 cm between the user and the transmitting antenna is maintained.
Any notification to the end user of installation or removal instructions about the integrated radio module is NOT allowed.
Version 1.1 - 2005-11
42
7.3 UL listing information
If a customer intends to UL list a product including any of the Bluetooth modules based on
the PCB cB-0901-03 this information is useful:
The printed circuit board if produced according to the following specification:
•
UL recognized ZPMV2 min. 105 °C flame class V-0 or better.
7.4 Compliance with RoHS directive
All products based on the PCB cB-0901-03 are produced according to the RoHS (Restriction
of the use of certain Hazardous substances in electrical and electronic equipment) directive
and complies with the directive.
Version 1.1 - 2005-11
43
Appendix A -
Application Notes
Usually only a subset of the available functionality is of interest to the designer. In addition,
depending on the host system, the electrical interface can be designed in many ways. The
designer can use the step-by-step guide in this chapter as an aid in the design process.
A.1 Step-by-Step Guide
Table 20: Step-by-step guide with Yes and No answers.
Question
Yes
No
Are you going to integrate the OEM
Serial Port Adapter in a metal enclosure?
The internal antenna models
cannot be used. Use the OEMSPA311x or OEMSPA331x.
You are free to choose
between the products. The
internal antenna models
are lower cost and are
easier to design-in. However, an external antenna
could give better range.
Do you wish to use logic level when
communicating with the OEM Serial
Port Adapter?
See section A.2.2.1 for electrical
design.
See section A.2.2.2 A.2.2.3 for electrical design.
Are you using a 5V host system?
See section A.2.1, Figure 12 for
electrical design.
See section A.2.1, Figure
11 for electrical design.
Is low power consumption important? The power consumption can be
reduced by enabling the stop
mode, see Table 10. The stop
mode is controlled with the DSR
pin, see section 2.5. The power
consumption is optimized with
3.2-3.3 V supply voltage.
Go on to next point.
Do you wish to connect LEDs to the
OEM Serial Port Adapter?
See section A.2.3 for design
examples for connecting the
LEDs.
Go on to next point.
Do you want to detect the status of
the module with a controller?
See Chapter 3, Table 14 for
Go on to next point.
status detection and section A.2.3
for electrical design.
Do you wish to utilize the restore
switch?
See section A.2.3.3 for electrical
design.
Go on to next point.
Do you wish to utilize the Function
switch (“Connect on external signal”)?
See section A.2.3.4 for electrical
design.
Go on to next point.
Do you want to manually reset the
module?
See section 0 for electrical design. Use a double row connector. See section 5.2.1.2.
Version 1.1 - 2005-11
44
A.2 Design Examples
This section contains design examples for all interfaces on J2, J3, J6, J7 and J8. The connector type that suits a specific application depends on the needed signal and the preferred
interface type (wires, flexfilm, board-to-board or SMD).
A.2.1 Logic Levels
A 3.0/3.3V host system can be connected directly to the logic level pins (BLUE, UART-TxD /
UART-RxD etc). A serial 100Ω resistor shall be used (see Figure 11) for protection, see
Table 12 for logic levels characteristics.
A 5V host system can easily be adjusted to the logic levels. A host system output signal can
use a resistive divider (18k/22k) to adjust the levels. This is applicable for speeds up to
115.2kBits/s. The divider can be adjusted to 1.8k/2.2k and a logic buffer (74HCT08) for
higher speeds (see Figure 12). The host system input pins could require a buffer (see Figure
12) depending on the logic level requirements (see Table 12).
The 74HCT08 gate is also available in a single gate package (74AHCT1G08).
Figure 11: Logic levels interface to a 3/3.3V
system. A protective 100Ω resistor is used.
Figure 12: Interface example with logic levels to a 5V
system.
A 5V system with open collector outputs is designed in Figure 13.
Figure 13: Open collector outputs.
Version 1.1 - 2005-11
45
A.2.2 Serial Interface
The serial interface of the module is Logic Level logic levels and the module can be connected to an external CPU (see section A.2.2.1).
An external driver is needed if the module should be on another physical interface like
RS232 or RS422 (see section A.2.2.2 and A.2.2.3).
CTS (Clear To Send) and RTS (Request To Send) are used for hardware flow control.
DSR (Data Set Ready) can be used to make a connect attempt. See the Serial Port Adapter
AT commands specification.
DTR (Data Terminal Ready) can be used to detect if the module is up and running and ready
to receive data.
Note! The module must be configured to flow control none if hardware flow control is
not used, see the Serial Port Adapter User Manual.
A.2.2.1 Logic level Mode
The serial UART interface can be used in a host controller application with a UART interface.
The design of the interface depends on the power supply voltage of the host system; see
Figure 14 for a 3.0/3.3V host system and Figure 15 for a 5V host system.
Figure 14: A complete UART interface with a
3.0/3.3V host system.
Figure 15: A complete UART interface with a 5V host
system.
Version 1.1 - 2005-11
46
A.2.2.2 External RS232 driver
An external RS232 driver is needed if the module should have a RS232 serial interface. See
Figure 16 for a complete design example that could be connected to the serial port of standard PC. Not used functionality can be left unconnected; see section A.2.2.
Figure 16: A complete RS232 interface.
A.2.2.3 External RS422 driver
An external RS422 driver could be used in a point-to-point (full duplex) application (see
Figure 17).
Figure 17: A complete RS422 interface.
Version 1.1 - 2005-11
47
A.2.3 LED and Switch Design
A.2.3.1 BLUE Signal
The BLUE logic LED signal is not multiplexed with any other functionality, which makes the
design more straightforward (for more information see Figure 18). There are two important
notes:
A blue LED requires about 3.5V forward voltage drop (cannot be used in a 3.3V system).
The BLUE signal can be used to detect if the module is connected or not. The BLUE
signal flashes when the module is sending and receiving data (see Chapter 3, Table
14). See Figure 19 for an example on how to suppress the flashes.
Figure 18: A blue LED can be connected directly to the module if the LED current is below 4mA. A high
state (active low) makes the voltage drop over the LED to 2.2V. This is not enough to light the LED.
Figure 19: A Low pass filter and a 74HC08 suppress the flashes when the module is sending and receiving
data. The Blue LED can be removed if not required. The values are not suited in all applications and need to
be verified in a specific application.
Version 1.1 - 2005-11
48
A.2.3.2 RED
The RED logic LED signal is not multiplexed with any other functionality, which makes the
design more straightforward. See Figure 20 for a 3.3V design.
In a 5V system the high state output (2.8V) from the module is not enough to turn off the
LED so a 74HCT08 buffer can be used to raise the high level to 5V (see Figure 21).
The 74HCT08 gate is available in a single gate package (74AHCT1G08).
Figure 20: A red LED in a 3.3V host system. The
status of the signal can also be used as input to a
host controller.
Figure 21: A red LED in a 5V host system. The
status of the signal can also be used as input
to a host controller.
The RED signal pin is also used to select Logic Level mode (instead of RS232) for connectBlue product with internal RS232 driver. The mode functionality is not applicable on cB0901 because there is no internal RS232 driver available. To be compatible with these products check the datasheet about this signal.
Version 1.1 - 2005-11
49
A.2.3.3 GREEN/Switch-1 signal
The GREEN/Switch-1 signal is a multiplexed signal:
GREEN - Logic green LED signal (see Chapter 3, Table 14). Becomes valid 500ms after start up.
Switch-1 - The module reads the status of the signal at startup to decide if the serial interface settings shall be restored (LOW) (see the Serial Port Adapter User Manual for
more details). The input signal must be stable for the first 500ms after startup (after reset/power on reset).
The signal is internally pulled-up (50kΩ) to 3.0V for NOT restoring settings to default.
If a LED is used and a switch is required to be able to restore the settings, a high impendence buffer need to prevent the signal from being pulled-up via the LED. A 74HC08 logic
gate can be used in a 3/3.3V system (see Figure 22) and a 74HCT08 logic gate in a 5V system (see Figure 23).
Both gates are available in a single gate package (74AHC1G08/74AHCT1G08).
Sometimes, over time, switch contacts can get an oxide layer. This may cause the closed
switch resistance to become too high to sink the signal to logic LOW (the signal is internally
pulled-up to 50kΩ). A design that prevents this can be found in Figure 27.
Figure 22: Switch-1 used together with a
green LED in a 3.3V host system. The status
of the signal can also be used as input to a
host controller. Notice the 10kΩ serial resistor.
Figure 23: Switch-1 used together with a green
LED in a 5V host system. The status of the
signal can also be used as input to a host
controller. Notice the 10kΩ serial resistor.
The buffer can be removed in a 3.3V system if no restore switch is required (see Figure 24).
In a 5V system the high state output (2.8V) from the module is not enough to turn off the
LED, so a 74HCT08 buffer can be used to raise the high level to 5V (see Figure 25).
The 74HCT08 gate is also available in a single gate package (74AHCT1G08).
Figure 24: No restore switch used but a green
LED in a 3.3V host system. The status of the
signal can also be used as input to a host controller.
Figure 25: No restore switch used but a green
LED in a 5V host system. The status of the
signal can also be used as input to a host
controller.
Version 1.1 - 2005-11
50
A serial resistor to the restore switch must be used to prevent a short circuit when the
GREEN/Switch-1 pin is in output HIGH state and the switch is pressed (see Figure 26).
Sometimes, over time, switch contacts can get an oxide layer. This may cause the closed
switch resistance to become too high to sink the signal to logic LOW (the signal is internally
pulled-up to 50kΩ). A design that prevents this can be found in Figure 27.
The GREEN/Switch-1 pin can be left unconnected if none of its functionality is required.
Figure 26: A low resistance restore
switch used. Notice the 10kΩ serial
resistor.
Figure 27: If the resistance in the switch is not
guaranteed to be low enough, a safer design can
be used. Notice the 10kΩ serial resistor.
A.2.3.4 Switch-0 Signal
Switch-0 is not multiplexed with other functionality and a switch is easily implemented (see
Figure 28).
Sometimes, over time, switch contacts can get an oxide layer. This may cause the closed
switch resistance to become too high to sink the signal to logic LOW (the signal is internally
pulled-up to 50kΩ). A design that prevents this can be found in Figure 29.
The Switch-0 pin can be left unconnected if its functionality is not used.
Figure 28: A low resistance function switch
used.
Figure 29: If the resistance in the switch is not
guaranteed to be low enough, a safer design
can be used.
Version 1.1 - 2005-11
51
A.2.4 Reset
The RESET pin can be connected to an external reset source, see Figure 30 for a switch example.
If the reset signal is connected to an output signal it must be an open drain collector, see
Figure 31. Notice the capacitive load on the RESET pin in Table 12, section 2.3.
The RESET pin can be left unconnected if not used.
Figure 30: A reset switch.
Figure 31: Design of an open collector reset
from an active high output.
Version 1.1 - 2005-11
52
A.2.5 A Complete 5V Host System Interface
This is a complete 5V host system interface example with an RGB LED and two switches
(except the serial interface, see section A.2.2 for information). The design is based on the
LM339 Quad OP-amp instead of logic gates.
Figure 32: A complete 5V host interface with operational amplifier
Version 1.1 - 2005-11
53

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 53
Creator                         : E  M Datasheet OEMSPA cB-0901.doc - Microsoft Word
Create Date                     : 2005:11:08 13:42:36
Title                           : E  M Datasheet OEMSPA cB-0901.PDF
Author                          : markus.wejrot
Producer                        : Acrobat PDFWriter 4.05 for Windows NT

EXIF Metadata provided by EXIF.tools