CB-OBS433X-02-0 ConnectBlue, CB-OBS433X-02-0 Datasheet - Page 30

• Manufacturer Part Number: CB-OBS433X-02-0
• Description: SERIAL PORT ADAPTER U.FL
• Manufacturer: ConnectBlue

Specifications of CB-OBS433X-02-0

• Frequency: 2.402GHz ~ 2.48GHz
• Modulation Or Protocol: Bluetoothv2.1+EDR
• Applications: General Purpose
• Power - Output: 17dBm
• Sensitivity: -94dBm
• Voltage - Supply: 3.3 V ~ 6 V
• Current - Receiving: 200mA
• Current - Transmitting: 200mA
• Data Interface: Connector, 2 x 10 Header, 2 mm Pitch
• Antenna Connector: U.FL
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 809-1039

connectBlue
Copyright © 2010 connectBlue AB
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.
Table 12: Step-by-step guide with Yes and No answers.
This section contains design examples for all interfaces on J1, J2, J3, and J6. The connector type that suits a specific application
depends on the needed signal and the preferred interface type (board-to-board or SMD).
A 3.0/3.3V host system can be connected directly to the logic level pins (BLUE, UART-TxD / UART-RxD etc).
A 5V host system can easily be adjusted to the logic levels.
A voltage level translation circuit can be used which is available by most of the logic circuit manufacturers. This circuits usually requires to
be supplied with both voltage domains. The cB-0939 module has a voltage output pin available that could be used to supply the module
side (see
that the input pins not is connected directly to 5V output pins to be compatible with other or future connectBlue modules (connectBlue
does not guarantee that modules in the future are 5V tolerant).
The module input signals can use a resistive divider (2.2kOhm/3.3kOhm) to adjust the levels (See Figure 13). This is applicable for
speeds up to 115.2kBits/s.
The divider can be improved by adding a logic buffer (74HCT08) for higher speeds (see Figure 13). The resistor dividers consume current
and a better solution could be to use the 5V input tolerant gates in the LVC family. The LVC gates are available in singel, dual and quad
gates packages (e.g. 74LVC1G08, 74LVC2G08 and 74LVC08). The LVC gates need to be power supplied with the module signal voltage
10 Application Notes
10.1 Step-by-Step Guide
10.2 Design Examples
Question
Are you going to integrate the OEM
Serial Port Adapter in a metal
enclosure?
Do you wish to use logic level when
communicating with the OEM Serial
Port Adapter?
Do you want to use RS485 or RS422
as the physical serial interface?
Do you wish to connect LEDs to the
OEM Serial Port Adapter?
Do you want to detect the status of the
module with a controller?
Do you wish to utilize the restore
switch?
Do you wish to utilize the Function
switch ("Connect on external signal")?
Do you want to manually reset the
module?
10.2.1 Logic Levels
10.2.1.1 3.0/3.3 voltage host system
10.2.1.2 5 voltage host system
10.2.1.2.1 Module input signals in a 5V host system
[Pin Description]
). All input signals pins are CMOS and TTL compliant (max input voltage 5.5V) but connectBlue recommend
Yes
Use one of the OEM Serial Ports Adapters with
antenna connector for external antenna
(cB-OBS411x).
See section
design.
See section
External RS422/RS485 transceiver
design.
See section
examples for connecting the LEDs.
See section
detection and section
for electrical design.
See section
design.
See section
design.
See section
double row connector. See section
connectors
.
Logic level Mode
External RS422 transceiver
LED and Switch Design
Operating status
GREEN/Switch-1
Switch-0 Signal
Reset
for electrical design. Use a
LED and Switch Design
for electrical
for status
for electrical
for electrical
Double row
for electrical
for design
and
No
Go on to next point.
See section
and
electrical design.
Go on to next point.
Go on to next point.
Go on to next point.
Go on to next point.
Go on to next point.
External RS422 transceiver
Internal RS232 transceiver
Page 30 of 42
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