BLE 5, Thread, Zigbee Modules,BT840X/XE
Ver 1.11 April 2019
18
Host Board Design for Low Cost or Long Range
On nRF52 series SoCs, Nordic offers various memory options and protocol supports. Fanstel offers various
antenna and power amplifier options. A host board can be designed to accommodate these nRF52 modules.
Our suggestions for host PCB design:
If your main goal is minimum PCB cost,
•
use a 2-sided PCB.
•
Use library component from EV BT832 Gerber files, can be downloaded from
http://www.fanstel.com/download-document/
.It has 16 castellated pins plus 24 LGA pins. BT840X
library component can be used. However, signal routing can be difficult on a 2-sided PCB.
•
Be sure of no metal contact in the area of 21 additional BT840X pins.
•
BT840X can be mounted on a BT832 pad.
If you main goal is maximum wireless range,
•
use a 4 or more layers PCB.
•
Use library component from EV BT840X V4 or newer Gerber files, can be downloaded from
http://www.fanstel.com/download-document/
.It has 16 castellated pins plus 45 LGA pins.
•
As much ground plane under BT840X, on top side of host PCB as possible. Use EV BT840X V4
Gerber files as an example.
•
If your products may need wireless range of 1350 meters or more, allocate physical space for a
15x28x1.9mm module. This larger module size is required to accommodate Skyworks SKY66112
power amplifier.
•
Don’t use P0.06 (BT840X pin B4), P0.17 (BT840X pin C3), and P0.19 (BT840X pin D2) on the host
board. These pins are used to control SKY66112 power amplifier in BT832X, BT832XE, BT840X and
BT840XE.
