ATZB-RF-233-1-C ZigBit 2.4GHz Wireless Modules [DATASHEET]

42192C

−WIRELESS−08/2015

11

Pin Out

Pin

descriptions

Function

36

SCL

TWI- EEPROM

37

SDA

TWI- EEPROM

38

FEM_CPS

Front end module select for RF_TX_RX

39

CLKM

Master Clock out put

40

IRQ

Interrupt request signal output

41

DVSS

Digital Ground

42

DVSS

Digital Ground

3.4

Antenna Orientation Recommendation

The Antenna in this module is designed to provide the best possible LoS range in the direction indicated in this

illustration.

3.5

Mounting Information

The Figure below shows the PCB layout recommended for a ZigBit module. Neither via-holes nor wires are allowed on

the PCB upper layer in the area occupied by the module. As a critical requirement, RF_GND pins should be grounded

via several via-holes to be located right next to the pins thus minimizing inductance and preventing both mismatch and

losses.