CB-OBS411X-04-0 ConnectBlue, CB-OBS411X-04-0 Datasheet - Page 36

• Manufacturer Part Number: CB-OBS411X-04-0
• Description: BLUETOOTH V2.1+EDR MODULE 4DBM
• Manufacturer: ConnectBlue

Specifications of CB-OBS411X-04-0

• Frequency: 2.4GHz
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: Bluetooth v2.1+EDR, Class 2 & 3
• Applications: General Purpose
• Power - Output: 4dBm
• Sensitivity: -84dBm
• Voltage - Supply: 3 V ~ 6 V
• Current - Receiving: 15.5mA
• Current - Transmitting: 25.1mA
• Data Interface: Solder Pads, 2 x 20mm, 1 mm pitch
• Antenna Connector: U.FL
• Operating Temperature: -30°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Other names: 809-1034

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Figure 19: A Low pass filter and a 74HC08 suppresses the flashes when the module is sending and receiving data. The Blue
LED can be removed if not required. The values are not suitable in all applications and need to be verified in a specific
application.
The RED logic LED signal is not multiplexed with any other functionality. See Figure 20 for a 3.3V design.
In a 5V system the high state output 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 and dual gates package (74AHCT1G08 and 74AHCT2G08).
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.
10.2.3.2 RED/Mode Signal
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