User's Manual

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,
Two W.FL RF connector for testing purpose,
One is for antenna path conductive testing, another is for ATT path
conductive testing.
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