CB-OBS411X-04-0 ConnectBlue, CB-OBS411X-04-0 Datasheet - Page 38

• 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 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 1kOhm 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 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.
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