RC220x

©2005 Radiocrafts AS

RC220x Data Sheet (rev. 1.0)

Page 13 of 17

PCB Layout Recommendations

The recommended layout pads for the module are shown in the figure below (top view, pin 1

is in upper left corner, see pin assignment at page 4). All dimensions are in thousands of an

inch (mil). The circle in upper left corner is an orientation mark only, and should not be a part

of the copper pattern.

The area underneath the module should be covered with solder resist in order to prevent

short circuiting the test pads on the back side of the module. A solid ground plane is

preferred. Unconnected pins should be soldered to the pads, and the pads should be left

floating. For the module version with integrated antenna or MMCX connector, the RF pad (pin

31) can be soldered, but the pad should not be connected further. The two ground pads (pin

30 and 32 on the right side) should be grounded for all variants.

Mechanical Drawing

Mechanical Dimensions

The module size is 0.65” x 1.15” x 0.14” (16.5 x 29.2 x 3.5 mm) without the antenna / MMCX

connector. The length is 1.4” (35.6 mm) with the optional antenna / MMCX RF connector.

Carrier Tape and Reel Specification

Carrier tape and reel is in accordance with EIA Specification 481.

Tape width Component

pitch

Hole pitch

Reel

diameter

Units per

reel

56 mm

20 mm

4 mm

13”

Max 800