User's Manual
Table Of Contents
- Features:
- Operational:
- RF/Analog Features:
- MAC/Baseband Features:
- Table of Contents
- Most Current Data Sheet
- Errata
- Customer Notification System
- 1.0 Device Overview
- 2.0 Circuit Description
- 3.0 Regulatory Approval
- 4.0 Electrical Characteristics
- Appendix A: Revision History
- INDEX
- The Microchip Web Site
- Customer Change Notification Service
- Customer Support
- Reader Response
- Product Identification System
© 2009 Microchip Technology Inc. Preliminary DS70599B-page 5
MRF24J40MB
1.2 Mounting Details
The MRF24J40MB is a surface mountable module.
Module dimensions are shown in Figure 1-3. The
module Printed Circuit Board (PCB) is 0.032" thick with
castellated mounting points on the edge. Figure 1-4 is
a recommended host PCB footprint for the
MRF24J40MB.
The MRF24J40MB has an integrated PCB antenna.
For the best performance, follow the mounting details
shown in Figure 1-5. It is recommended that the
module be mounted on the edge of the host PCB, and
an area around the antenna, approximately 1.2", be
kept clear of metal objects. A host PCB ground plane
around the MRF24J40MB acts as a counterpoise to the
PCB antenna. It is recommended to extend the ground
plane at least 0.4" around the module.
FIGURE 1-3: MODULE DETAILS
FIGURE 1-4: RECOMMENDED PCB
FOOTPRINT