Honeycomb Technologies HRF24A13AN RF 2.4G module User Manual manual

HRF24A13AN

Data Sheet

2.4 GHz IEEE Std. 802.15.4™

RF Transceiver Module

HRF24A13AN

Note the label artwork for Products

Warning: Changes or modifications to this unit not expressly approved by the party

responsible for compliance could void the user’s authority to operate the equipment.

NOTE: 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.

HRF24A13AN

Note: This 2.4G RF Module is designed to be used internally only in Controls

products which with RF shielding. It is not intended to be sold as an end item by

itself to external customers.

FCC Caution: Any changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to operate this

equipment.

This module and its antenna(s) must not be co-located with any other transmitters

except in accordance with FCC multi-transmitter product procedures.

The module is intended only for OEM integrator. And it should not be marketed

and sold in a way that has to be end-user accessible / replaceable. The host

product is required to comply with all applicable FCC equipment authorizations

regulations, requirements and equipment functions not associated with the

transmitter module portion. The host manufacturer is responsible for ensuring

compliance with the module(s) installed and fully operational.

Label of the end product:

The final end product must be labeled in a visible area with the following “Contains

Transmitter Module FCC ID: 2AAUWHRF24A13AN” or “Contains FCC ID:

2AAUWHRF24A13AN”. If the size of the end product is larger than 8*10cm, then

the following FCC Part 15.19 statement has to also be available on the label: 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.

User manual of the end product:

In the user manual of the end product, the end user has to be informed that:

Warning: Changes or modifications to this unit not expressly approved by the party

responsible for compliance could void the user’s authority to operate the equipment.

NOTE: 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:

HRF24A13AN





 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.

If the size of the end product is smaller than 8*10cm, then additional FCC Part

15.19 statement is required to be available in the user manual: 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.

HRF24A13AN

2.4 GHz IEEE Std. 802.15.4™ RF Transceiver Module

Features:

 IEEE 802.15.4-2006 Compliant RF Transceiver

 Small Size: 25mm*11.8mm Surface Mountable

 Integrated Crystal, Internal Voltage Regulator, Matching Circuitry and

PCB Antenna.

 Radio Regulation Certification for United States (FCC ID)

 Up to 300m Range (outdoor, line-of-sight)

Operational:

 Operating Voltage: 2.4V-3.6V(3.3V typical)

 Temperature Range: -20°C to +70°C

 Simple, Four-Wire SPI Interface

RF/Analog

 ISM band 2.405~2.475 GHz operation

 Integrated low phase noise VCO, frequency synthesizer and PLL loop

filter

 Integrated 32 MHz oscillator drive

 Integrated internal oscillator circuit

 Single End RF input/output

 32 MHz reference clock output

HRF24A13AN

 Digital VCO and filter calibration

 High receiver and RSSI dynamic range

 1M/2M bps turbo mode supported

Mac/Baseband

 IEEE 802.15.4-2006 specification compliance

 Hardware CSMA-CA mechanism, automatic ACK response and FCS

check

 Programmable ‘Superframe’ construction

 Functionally independent TX FIFOs, including beacon FIFO, transmit

FIFO and GTS FIFOs

 Dual RX FIFOs

 Hardware security engine

 Various power saving modes

 Support all CCA modes and RSSI/LQI

FIGURE 1: PIN DIAGRAM

HRF24A13AN

Device Overview

HRF24A13AN is a solution that complies with IEEE 802.15.4-2006 specifications. It

integrates a 2.4 GHz RF transceiver with an IEEE802.15.4 compliant Baseband/MAC

block within a single chip. The HRF24A13AN can be controlled by a microprocessor

(e.g. 8051) for low-data-rate applications such as home automation, industrial

automation, consumer electronics, PC peripheral …etc. For medium-data-rate

applications like wireless voice and image transmission, the HRF24A13AN provides

1M/2M bps turbo mode.

FIGURE 2: BLOCK DIAGRAM

TABLE 1-1: PIN DESCRIPTION

FIGURE 3: MICROCONTROLLER TO HRF24A13AN INTERFACE

HRF24A13AN

Mounting Details

The HRF24A13AN is a surface mountable module. Module dimensions are shown in

Figure 4. The module Printed Circuit Board (PCB) is 0.032" thick with castellated

mounting holes on the edge. Figure 5 is a recommended host PCB footprint for the

HRF24A13AN. The HRF24A13AN has an integrated PCB antenna. For the best

performance, follow the mounting details shown in Figure 6. 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 HRF24A13AN acts as a counterpoise to the PCB antenna. It is

recommended to extend the ground plane at least 0.4" around the module.

FIGURE 4: MODULE DETAILS

FIGURE 5 RECOMMENDED PCB FOOTPRINT

HRF24A13AN

FIGURE 6 MOUNTING DETAILS

CIRCUIT DESCRIPTION

HRF24A13AN

The HRF24A13AN is a complete 2.4 GHz IEEE 802.15.4-2006 compliant surface mount

module with integrated crystal, internal voltage regulator, matching circuitry and PCB

antenna. The HRF24A13AN module interfaces to many popular micro-controllers via

a 4-wire serial SPI interface, interrupt, wake, Reset, power and ground.

SCHEMATIC

A schematic diagram of the module is shown in Figure 7 and the Bill of Materials

(BOM) is shown in Table 2. The HRF24A13AN module is based on the Ubec

Technology US2400 IEEE 802.15.4-2006 GHz RF Transceiver IC. The serial I/O (SCK,

SDI, SDO and CS), RESET, WAKE, INT and CLKOUT pins are brought out to the module

pins. The SDO signal is tri-state buffered by IC2 to solve a silicon errata where the

SDO signal does not release to a high-impedance state after the CS pin returns to its

inactive state. Crystal Y1 is a 32 MHz crystal with a frequency tolerance of ±20 ppm

@ 25°C to meet the IEEE 802.15.4-2006 symbol rate tolerance of ±40 ppm. A balun is

formed by components: C21,C2 and R1. C5 is a DC block capacitor.

FIGURE 7 HRF24A13AN SCHEMATIC

TABLE 2

HRF24A13AN BILL OF MATERIALS

HRF24A13AN

Printed Circuit Board

The HRF24A13AN module printed circuit board is con-structed with FR4 material,

two layers and 0.8mm thick. The layers are shown in Figure 8 through Figure 9. The

stack up of the PCB is shown in Figure10

FIGURE 8 TOP COPPER

FIGURE 9 BOTTOM COPPER

HRF24A13AN

FIGURE 10 PCB LAYER STACK UP

PCB Antenna

The PCB antenna is fabricated on the top copper trace. Figure 11 shows the trace

dimensions. The layers below the antenna have no copper traces. The ground and

power planes under the components serve as a counterpoise to the PCB antenna.

Additional ground plane on the host PCB will substantially enhance the performance

of the module.

FIGURE 11 PCB LAYER STACK UP

HRF24A13AN

Honeycomb Technologies HRF24A13AN RF 2.4G module User Manual manual

Shenzhen Honeycomb Technologies Company Limited RF 2.4G module manual

User Manual

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