© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RoHS
CE • ETSI • IC • FCC
Approved & Certified
BLE
Compliance Approved
BLE RF Module
With Built-In ARM Cortex M0 Microcontroller
RFD22302
RFD22301
CE, ETSI, IC, FCC Approved
Optional Configuration
Easy to solder 0.050 Inch SMT pads
CE • ESTI
15mm x 15mm
(0.600 x 0.600 Inch)
Requires Ext. Ant
External Antenna
CE, ETSI, IC, FCC
Approved & Certified
Hi performance, professional grade BLE
compatible radio transceiver with built-in ARM
Cortex M0 microcontroller that can be
programmed using the
Arduino IDE using RFduino extensions.
Built-in user application microcontroller with
ADC, I2C, SPI, UART and GPIO.
Can wirelessly communicate with iOS iPhone,
iPad or Android smartphones or tables.
Requires Ext. Ant
External Antenna
TYPICAL APPLICATIONS
• Active RFID
• Long Range RFID
• Remote Control
• Light Controls
• Home Automation
• Alarm Security
• Keyless Entry
• Perimeter Monitoring
• PC Keyboard Security
• Wireless Keyboard
• Wireless Mouse
• TV Remote
• Home Stereo Remote
• Asset Tracking
• Wireless PTT
• Remote Switches
• Remote Terminals
• Wireless RS232 DB9
• Wireless RS485
• Temperature Control
• HV/AC
• Meter Reading
• Data Acquisition
• Inventory Control
• Keyfob Remotes
• Industrial Controls
• Vending Machines
• Pan-Tilt-Zoom Control
• Camera Flash Control
• Biometrics
• Seismic Monitoring
• IoT, M2M more…
Email your application questions to support@rfdigital.com
1
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 Pinout - Top View
GND pins 1, 2, 8,
9, 10, 18 and 19
are optional.
RFD22301 Pinout - Bottom View
GND pins 1, 2, 8,
9, 10, 18 and 19
are optional.
Email your application questions to support@rfdigital.com
2
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RoHS
CE • ETSI • IC • FCC
Approved & Certified
BLE
Electrical Specifications
Description
VDD - Supply Voltage
Min
2.1 V
Nom
3.0 V
ESD - Human Body Model Class 2
Built-in Crystal Frequency
16 MHz
Crystal Frequency Tolerance
Built-in RC Oscillator Frequency
32.768 kHz
Max
3.6 V
Notes
4 kV
+/- 10ppm
Built-in RC Oscillator Tolerance
Built-in RC Oscillator Tolerance after calibration
+/- 2%
250 ppm
Reset pin time for successful reset
600 ns
Radio Operating Frequencies
2402 MHz
Radio Frequency Deviation @ BLE
+/- 225 kHz
Radio On-Air data rate
250 kbps
2000 kbps
Radio Output Power
-30 dBm
+4 dBm
Receiver Sensitivity @ BLE
2481 MHz
+/- 250 kHz
-93 dBm
Radio RSSI Accuracy
1 MHz channel spacing
+/- 275 kHz
Ideal transmitter
+/- 6 dB
UART Baud Rate
1.2 kbps
921.6 kbps
SPI Bit Rate
0.125 Mbps
8 Mbps
TWI Bit Rate
100 kbps
400 kbps
Analog-to-Digital Converter (ADC) ENIB
10 bit
ADC Internal Reference Voltage
1.182 V
1.20 V
1.218 V
ADC External Reference Voltage
0.83 V
1.20 V
1.30 V
Internal Temperature Sensor Range
-25 °C
75 °C
Internal Temperature Sensor Accuracy
-4 °C
4° C
General Purpose I/O (GPIO) input high voltage
0.7 * VDD
VDD
General Purpose I/O (GPIO) input low voltage
VSS
Output standard drive current
0.3 * VDD
0.5 mA
Output high drive current
5 mA
Max 3 pins
Pull-up resistance
11k
13k
16k
Pull-down resistance
11k
13k
16k
ULP Current with RC OSC Running
4uA
Transmit Current
12mA
Receive Current
12mA
ARM CPU Running Current
4mA
Email your application questions to support@rfdigital.com
3
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 IDE & Programming Tools
The RFD22301 can be programmed using different IDEs, however we recommend using the
Arduino based RFduino IDE.
Download RFduino Quick Start Guide: http://forum.rfduino.com/index.php?topic=14.0
Or go to http://RFduino.com/ and click on Forum.
Using the free Arduino IDE with RFduino extensions, you can instantly load different
pre-written examples and be up and running with your applications quickly and easily.
Open Source iOS sample apps for iPhone and iPad are available in the Apple App Store
In the http://www.RFduino.com there is already an Android sample app published, it is the first
of many others to follow which are contributed by the RFduino community.
Download RFduino library: https://github.com/RFduino/RFduino
Or go to http://RFduino.com and click on Download.
Email your application questions to support@rfdigital.com
4
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RoHS
CE • ETSI • IC • FCC
Approved & Certified
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 Programming Interface
RFD22121
USB Programmer
RFD22121
USB Programmer
(Included in dev kits)
(Included in dev kits)
RFD22121
USB Programmer
(Included in dev kits)
For RFduinio items go to: http://RFduino.com
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 Rapid Development & Prototyping Kits
RFD22102
DIP version of RFD22301 for prototyping
Stackable accessories plug into breadbords
Many different Eval and Dev Kits available on http://www.rfduino.com/
Email your application questions to support@rfdigital.com
6
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RoHS
CE • ETSI • IC • FCC
Approved & Certified
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
FCC Compliance Information
The RFD22301 is IC and FCC Modular Approved and Certified, therefore for use of the RFD22301 module in
your product does not require further IC or FCC testing for an intentional radiator for compliance of the
RFD22301. Detail instructions and IC and FCC notices shown later in this data sheet. Any modifications made to
the RFD22301 will void the IC and FCC Approval and Certification. The RFD22301 has an integrated on-board
chip antenna. You simply include the RFD22301 in your product and follow the IC and FCC notices and
information below and place the appropriate label on your product to indicate that it includes an IC and FCC
approved module and no further testing would be required for the module.
The RFD22302 is NOT IC or FCC Approved since the antenna is not integrated as part of the module. However it
is exactly the same as the RFD22301 except it does not have an internal antenna and is built to allow a user to
apply their own antenna of choice. Any type of 2.4 GHz antenna may be used. Once you include the RFD22302
into your product and your chosen antenna is connected, then your whole product is tested by an approved IC or
FCC compliance laboratory and you receive your own grant for your whole product which includes the RFD22302.
This procedure is somewhat costly and time consuming and therefore the RFD22301 is the primary choice by
many engineers. The RFD22302 is typically used if you must have an external antenna.
CE, ETSI Compliance Information
The RFD22301, RFD22302, RFD21742 and RFD21743 are CE (ETSI) Tested. See declaration of conformity
later in this document.
Using CR2032 Batteries
The CR2032 battery is very commonly used for power. The peak current draw for the Modules are about 15mA,
and the background current is 5uA depending on the mode setting of course. Quite often capacitors are used in
parallel with the CR2032 to help limit the amount of peak current the CR2032 is exposed to, so as to help it have
a longer run time, since the CR2032 does not handle peak current very well over long durations of time. We
recommend if you choose to place bypass capacitors tied to the CR2032 for this purpose, then do testing to
compare if they really provide you a benefit or not. Quite often the leakage current of the capacitors are so high
that they will have negative impact on the battery runtime rather then provide an advantage. At least if you have
the room, place the pads, but before you place the caps for production, do testing to make sure they are really
helping and not reducing your runtime.
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
Industry Canada Information
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject
to the following two conditions: (1) this device may not cause interference, and (2) this device
must accept any interference, including interference that may cause undesired operation of the
device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne
doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
IC LABEL
Relating to Model Number R25 (RFD Part Number: RFD22301)
The unit should have a permanently attached label in a conspicuous location with the following
statement:
Contains IC: 6992A-25
NOTES:
1. Industry Canada does not specify the size of the label or the lettering thereon. The only
requirement is that the text be legible.
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
SAMPLE FCC STATEMENT TO BE INCLUDED IN USER'S MANUAL
Relating to Model Number R25 (RFD Part Number: RFD22301)
INSTRUCTION TO THE USER (if device DOES NOT contain a digital device)
The user is cautioned that changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
INSTRUCTION TO THE USER (if device contains a digital device)
This equipment has been tested and found to comply with the limits for a class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
* Reorient or relocate the receiving antenna.
* Increase the separation between the equipment and receiver.
* Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
* Consult the dealer or an experienced radio/TV technician for help.
In order to maintain compliance with FCC regulations, shielded cables must be used with this
equipment. Operation with non-approved equipment or unshielded cables is likely to result in
interference to radio and TV reception. The user is cautioned that changes and modifications
made to the equipment without the approval of manufacturer could void the user's authority to
operate this equipment.
Email your application questions to support@rfdigital.com
9
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
FCC LABEL
Relating to Model Number R25 (RFD Part Number: RFD22301)
The unit should have a permanently attached label in a conspicuous location with the following
statement:
Contains FCC ID: UYI25
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
NOTES:
1. The FCC does not specify the size of the label or the lettering thereon. The only requirement
is that the text be legible.
2. If the entire label can not be placed on the unit due to space constraint, only FCC ID may be
displayed on the unit. In such cases, the compliance statement will have to be included in the
"user’s manual". NOTE: Device must be smaller than a man’s palm.
** If the unit also interfaces with phone line, it requires additional information on the label - refer
to part 68 information **
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RoHS
Declaration Of Conformity
November 17, 2013
RF Digital declares that part numbers
• RFD22301
• RFD22302
are manufactured with RoHS materials.
Email your application questions to support@rfdigital.com
11
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
DECLARATION OF CONFORMITY
November 17, 2013
RF Digital declares that part numbers
• RFD22301
• RFD22302
comply with ETSI EN 300 440-2 power requirements
as called out in the R&TTE V1.2.1 Directive
Technical documents for the above mentioned part numbers are held at
RF Digital Corporation
1601 Pacific Coast Highway, Suite 290
Hermosa Beach, CA 90254
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
Overall Dimensions • Top View
Overall Dimensions • Side View
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
PCB Layout
Email your application questions to support@rfdigital.com
14
© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
Washing
The RFD22301 and RFD22302 are NOT washable.
Use no-clean flux, leaded or lead-free. If you attempt to wash the modules, water will enter beneath
(inside) the RF shield and get trapped, which may cause device failure or damage once powered on.
There is no way to make sure all water has been removed before powering the module so do NOT wash
the modules.
Potting, Encapsulation and Conformal Coating
Do NOT pot or conformal coat the RFD22301 or RFD22302.
If you plan on encapsulating the RFD22301 or RFD22302 in a potting compound or conformal coating,
you must assure that the compound in liquid or solid form does not enter under the shield where there
are sensitive RF components. Some of the capacitive values are as low as half a picofarad and sensitive
to contacting materials such as potting compounds. There are potting compounds and conformal
coatings which have very good dielectric constants and are suitable for 2.4 GHz potting applications,
however, when you apply any of these, they were accounted for in the circuit design and might reduce
performance of the device or all together cause it not to function.
Applying any compound, conformal coating or potting directly to the module voids any and all
warranty and support service.
If your application requires 100% sealing of the module, there is a way to do this very successfully
without impacting the module performance. Simply place the module on your PCB. Place a plastic
cover over the module (like a hat), make the cover large enough to cover the whole module. Apply glue
around the bottom perimeter of the cover where it sits on the PCB. This allows the module to function in
free airspace while there is a complete seal around it. This information is only for reference and you
should do your own testing with your application to find the best suitable fit for your own design.
Reflow Profile
Use standard lead-free or leaded reflow profile for the RFD22301 and RFD22302. Your CM (Contract
Manufacturer) should profile this module along with your PCB and all other parts on it through their
reflow oven to properly set a profile suitable for all the parts on the board combined.
USE CAUTION: If you are building a double-sided placement board, place this device last so it will not
be subjected to being reflowed upside-down.
As with building any RF devices, you should always build a small quantity through your production
process, test and verify, then increase your quantities to make sure the process is not harmful to the
performance of your RF system. This is true with any RF system, including use of these modules.
Email your application questions to support@rfdigital.com
15
© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 / RFD22302 Tray Packaging
Email your application questions to support@rfdigital.com
16
© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 / RFD21735 Tray Packaging
Email your application questions to support@rfdigital.com
17
© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 / RFD22302 Tray Packaging
Email your application questions to support@rfdigital.com
18
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8/20/2015 4:37 PM
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www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RoHS
CE • ETSI • IC • FCC
Approved & Certified
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
Surface Mounted RF Module Layout Examples
For Part Numbers RFD22301 and RFD22302
Layout Trace Routing and VIAs
When doing your layout for the RFD21733 and RFD21735 avoid placing routs under the module if at all possible.
Having traces under the module as long as they are fully covered by soldermask is typically fine, however placing
VIAs under the module is not at all recommended since soldermask covering VIAs are typically not fully plugged
and protected. Therefore, if there is any exposes soldermask under the module near an area were your board
has an exposed via, there is a chance of a short. There is a slim chance of this ever happening, however if
possible, make effort to avoid having VIAs under the Modules.
RFD22301 CE ETSI, IC, FCC Approved
Built-In Antenna
RFD22301
For use with
External Antenna
RFD22301 / RFD22302
RFD22302
Legend
Please use the legend below to identify the colors, objects and their meanings in this document.
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 Layout Example Pinout
This Layout Examples document only references pins that are common to all RFD22301 and
RFD22302 modules and matter to the layout, which are ground and external antenna connections
where applicable. To keep the file size of this document small, some of the larger images are
outputted in lower resolutions, for full details on pinouts refer to the data sheet for the appropriate
part number, which can all be found at http://www.rfdigital.com.
Pins labels 3,4,5,6,7,14,15,16,17 change based on which part number module is being used, however
that does not matter for this document.
If you have any questions, feel free to contact RF Digital Support anytime, we're always here to help you!
Email your application questions to support@rfdigital.com
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8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 Layout Examples
The following layout examples are for the RFD22301 module which has a built-in chip antenna. Later
in this document there are examples for the RFD22302 module which is for use with external an
antenna.
RFD22301 Antenna Pattern
This is a typical antenna pattern, however does vary based on many factors including surrounding
components and ground planes. It is only provided as a reference. The one inch copper plane
shown helps maintain the balanced antenna pattern and when possible should be used, if not
possible, its not required.
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 Keep Out Area - Example 1
When placing the module info a plastic enclosure, it is highly recommended that you locate the
module in the corner of the enclosure / PCB so it will be as far away from your other components on
the PCB and as close to free airspace as possible. In addition, you want to locate the module in a
position in your product where it will have as much free airspace as possible near the antenna when
in use. For example if it will be placed against a wall, it is preferred to locate the module so it will be
in a location in your product where it will be on the side of the product where it will be further away
from the wall, rather then directly next to it, so the RF signal can have as much free airspace to give
you the best range performance possible. (Note: If you plan on using a metal enclosure, you can not
locate the module inside of the enclosure or it will have very limited range.)
RF Signals in this area.
If you place anything such as components, wires, metal parts of any type in this area, it will block the RF
signals and drastically limit your range. Leave this area open.
Email your application questions to support@rfdigital.com
22
© Copyright, RF Digital
8/20/2015 4:37 PM
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RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 2
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible. Also the signal connections to the
module can be made on either layer. The electrical ground connection to the module is to be made
with a thin trace so the one inch ground plane off to the side can be effective.
RF Signals in this area.
If you place anything such as components, wires, metal parts of any type in this area, it will block the RF
signals and drastically limit your range. Leave this area open.
Email your application questions to support@rfdigital.com
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© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 3
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible.
RF Signals in this area.
If you place anything such as components, wires, metal parts of any type in this area, it will block the RF
signals and drastically limit your range. Leave this area open.
Email your application questions to support@rfdigital.com
24
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 4
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible.
Email your application questions to support@rfdigital.com
25
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 5
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible.
Email your application questions to support@rfdigital.com
26
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 6
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible.
Email your application questions to support@rfdigital.com
27
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 7
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible. Solid blue areas are solder side
ground plane which can be used for user electronics as well as the module. These are all optional
configurations and only for reference.
Email your application questions to support@rfdigital.com
28
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 8
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible. Solid blue areas are solder side
ground plane which can be used for user electronics as well as the module. These are all optional
configurations and only for reference. The two left examples are preferred, but the two right ones
will work as well, but will not have as good of an antenna pattern.
Email your application questions to support@rfdigital.com
29
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 9
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible. Solid blue areas are solder side
ground plane which can be used for user electronics as well as the module. These are all optional
configurations and only for reference. The two left examples are preferred, but the two right ones
will work as well, but will not have as good of an antenna pattern.
Email your application questions to support@rfdigital.com
30
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 10
The gray area shows where to keep free from copper and components. The one-inch length copper
area is optional, however does improve the range if you can add it. Parts can be placed all over the
rest of the board, however if possible keep about a half-inch distance from the one inch length
ground area to the right of the module, again, only if possible. Solid blue areas are solder side
ground plane which can be used for user electronics as well as the module. These are all optional
configurations and only for reference. The space in the ground plane helps provide some RF
discontinuity for the module to have he best antenna pattern possible in this configuration, the
optimal space to have is greater then 1.2 inches, but some space is better then no space.
Email your application questions to support@rfdigital.com
31
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 11
The gray area shows where to keep free from copper and components. These shown are not good
layout locations for the module since they take up most of your board area, it is best to locate the
module similar to the examples shown in other areas of this document where you have more board
space for your parts. These examples are shown as what NOT to do. If you place parts in the gray
area, it will result in very bad range performance.
Email your application questions to support@rfdigital.com
32
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 12
The gray area shows where to keep free from copper and components. These shown are not good
layout locations for the module since they take up most of your board area, it is best to locate the
module similar to the examples shown in other areas of this document where you have more board
space for your parts. These examples are shown as what NOT to do. If you place parts in the gray
area, it will result in very bad range performance.
Email your application questions to support@rfdigital.com
33
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301 - Layout Examples 13
The gray area shows where to keep free from copper and components. These are multi-module
configurations. Typical layouts for diversity applications where you will use multiple receivers,
transmitters or transceivers all on the same board to limit multipath impacts and increase effective
communication range or provide a very solid coverage area with limited dead-zones. The distances
shown are not optimal, however just provided as reference.
Email your application questions to support@rfdigital.com
34
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22301- Layout Examples 14
The gray area shows where to keep free from copper and components. These are multi-module
configurations. Typical layouts for diversity applications where you will use multiple receivers,
transmitters or transceivers all on the same board to limit multipath impacts and increase effective
communication range or provide a very solid coverage area with limited dead-zones. The distances
shown are not optimal, however just provided as reference.
Email your application questions to support@rfdigital.com
35
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
RoHS
CE • ETSI • IC • FCC
Approved & Certified
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
RFD22302 - Layout Examples 15
The gray area shows where to keep free from copper and components. The RFD22302 requires the
use of an external antenna and therefore the most common connector used for this is an SMA and
the examples below show a typical SMA connector footprint interface.
PCB thickness is 0.031 inch to 0.062 inch, double sided. The blue color shows ground plane under
the module on the solder side of the board.
If you place ground plane or any traces under the gray area marked no-copper, then you will not
have the option to use the RFD22301 which is the on-board chip antenna version of the RFD22302.
So it is your choice if you choose to flood copper under that area or not. There is no benefit to flood
copper in that area. If you choose to make a dual-mode layout to handle both module options, with
chip antenna or without (which is what we recommend), then also advise with the layout
configurations above for proper application.
Email your application questions to support@rfdigital.com
36
© Copyright, RF Digital
8/20/2015 4:37 PM
Patents Pending
www.RFdigital.com • sales@rfdigital.com
1601 Pacific Coast Hwy • Suite 290
Hermosa Beach • CA • 90254
Tel: 949.610.0008
RoHS
CE • ETSI • IC • FCC
Approved & Certified
RF Module
Model Number: R25
PN: RFD22301
PN: RFD22302
BLE
Important Notice
RF Digital reserves the right to make corrections, modifications, and/or improvements to the product
and/or its specifications at any time without notice.
RF Digital assumes no liability for the user’s product and/or applications.
RF Digital products are not authorized for use in safety-critical applications, including but not limited to
life-support applications.
RF Digital assumes no liability for parts or their application beyond replacement or refunding the original
purchase price.
All trademarks and trade names belong to their respective owners.
Information provided in this document is for reference only. The user must conduct testing and
prototyping on their own for their own application. This document only provides an example of a
possible use for the parts shown in this design and requires actual testing to confirm its accuracy or
validity or proper application. There is NO suggestion that the devices shown in this document should be
used for the implied application. There is no guarantee or warranty of suitability for any specific
application. The information disclosed in this document is AS-IS. By using any information contained in
this document you are assuming all risks and liability associated therewith. RF Digital reserves the right
to make corrections, modifications, changes and/or improvements to specifications or details at any time
without notice or obligation. RF Digital assumes no liability for the user’s product and/or applications. RF
Digital products are not authorized for use in safety-critical applications, including but not limited to lifesupport applications. RF Digital assumes no liability for parts or their application beyond replacement or
refunding the original purchase price paid to RF Digital.
Limited Product Warranty
RF Digital warrants that RF Devices manufactured by RF Digital are free from defects in material and
workmanship, for Ninety (90) Days from date of delivery. RF Devices covered by this warranty and
returned to RF Digital within the Ninety Day Warranty Period will be eligible for replacement, repair, or
credit, limited to the amount RF Digital was paid for the RF Device. To obtain a remedy under this
Warranty, the following conditions must be met: (1) Customer must notify RF Digital in writing promptly
on discovery of the deficiency with reasonable detail within the Warranty Period; (2) Customer must
return the RF Devices to RF Digital promptly upon receipt of an RMA from RF Digital, at Customer’s risk
and expense; and (3) RF Digital confirms the claimed deficiency is present. If all of these conditions are
met, RF Digital, at its sole option, will either replace or repair the RF Device or credit Customer’s account
for the amount the Customer paid to RF Digital for the RF Device.
End of document.
Email your application questions to support@rfdigital.com
37