SPBT2532C2.AT2 STMicroelectronics, SPBT2532C2.AT2 Datasheet - Page 20

• Manufacturer Part Number: SPBT2532C2.AT2
• Description: Bluetooth / 802.15.1 Modules Bluetooth V2.1 Mod Class2 SPP AT Rev2
• Manufacturer: STMicroelectronics

Specifications of SPBT2532C2.AT2

• Rohs: yes
• Class: 2
• Frequency Band: 2.4 GHz
• Sensitivity: - 85 dBm
• Data Rate: 2 Mbps
• Operating Supply Voltage: - 0.3 V to + 5 V
• Interface Type: UART
• Maximum Operating Temperature: + 55 C
• Dimensions: 10.5 mm x 13.5 mm

Application information
8
8.1
20/27
Application information
Here below there are some suggestions to better implement the module in the final
application.
●
●
Keep the RF ground separate from the module supply voltage ground; the two grounds are
already connected inside the module in one point, a possible implementation can be seen in
Figure
Figure 9.
Antenna choice
The RF output pin must be connected to an antenna which may be:
●
●
The external antenna connected by means of an SMA connector
Avoid that traces with switching signals are routed on the motherboard below the
module. The best condition would be to have a ground plane underneath the module
Connect the supply voltage ground of the module with the other grounds present on the
motherboard in a star ground configuration.
Antenna directly printed on the PCB
Integrated SMD antenna, including but not limited to the following examples
(Figure
–
–
–
–
–
9.
Johanson Technology 2450T18A100S
Antenova 30-30-A5839-01
Murata ANCV12G44SAA127
Pulse W3008
Yageo CAN4311153002451K.
11):
Example of antenna integration on the STEVAL-SPBT2ATV3
Doc ID 023461 Rev 1
(Figure
10)
(Figure
SPBT2532C2.AT2
12).