COMPANY CONFIDENTIAL
4. Product Requirements and Characteristic
4.1 Hardware Characteristic
Form factor 26.3X17(mm
2
) module with 2X9 pin board to board connector
Host Interface USB 2.0 (Full Speed)
PCB
4-layer single side
Antenna &RF connector
One printed Antenna,
One W.FL RF connector for testing purpose
4.2 Hardware Architecture
This Bluetooth module design is based on Broadcom BCM20702 chipset, which is a highly integrated
single chip solution for Bluetooth 4.0+EDR.
This Bluetooth device is operating at 2.4 GHz ISM band. For basic rate and EDR, it works with
hopping in 79 1MHz bandwidth channels, the channel center frequency is 2402+kMHz, k=0, 1,
2,……, 78. For Low energy, it uses 40RF channels, which have center frequencies at
2402+K*2MHz, where k=0, …, 39.
The Bluetooth module employs a 512Kbit serial flash and a 26MHz crystal, it use a 18pin board to
board connector to link host interface, power supply, and GPIOs to the Host.
5. Mechanical Drawing
