CB-OBS433X-02-0 ConnectBlue, CB-OBS433X-02-0 Datasheet - Page 37

• 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
Figure 21: UART mode selected together with a red LED in a 5V host system. The status of the signal can also be used as input
to a host controller.
Only a pull-down on the RED/Mode pin is needed if UART logic level mode is used but no red LED is required. The RED/Mode pin can
be left unconnected if RS232 (default) is used and no red LED required.
The GREEN/Switch-1 signal is a multiplexed signal:
The signal is internally pulled-up (see
default values.
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. See Figure 22-23 and the
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 because the signal is internally pulled-up (see
Figure 27.
10.2.3.3 GREEN/Switch-1 signal
GREEN - Logic green LED signal (see the
time can be up to 2 seconds (see the Serial Port Adapter AT Commands specification).
Switch-1 - The module reads the status of the signal at startup to decide if the serial interface settings shall be restored (LOW).
The module will restore all factory settings if both the Switch-1 and Switch-0 signals are low during start up. See the Serial Port
Adapter AT Commands specification for more details. The input signal must be stable for the first 700ms after startup (after
reset/power on reset).
NOTE
The internal pull-up is changed compared to previous product generations from connectBlue. See the
Bluetooth cB-OEMSPA3xx to cB-OBS4xx products
Input/Output signals
Operating status
Logic Levels
) to the internal voltage supply (see
section for more information.
section). Becomes valid after the module has started up. The startup
section for buffer selection.
Input/Output signals
). A design that prevents this can be found in
Power supply
) for NOT restoring settings to
Migrating from
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