Korg WRRF Users Manual

2.4 GHz antenna all-in-one design RF module

WR RF module

Manual

 Specifications and appearance are subject to change without notice for improvement

KORG INC.

4015-2 Yanokuchi, Inagi-city, Tokyo 206-0812, Japan

1 Introduction

The WR RF module is a 2.4GHz transceiver.
WR RF module operates in 2.400-2.4835GHz ISM frequency band.
To design a radio system with the WR RF module, you simply need an MCU (microcontroller)
and a few external passive components.
You can operate and configure the WR RF module through a Serial Peripheral Interface (SPI).

1.1 Features

Features of the nRF24L01+ include:

• Radio

 Worldwide 2.4GHz ISM band operation
 Common RX and TX interface
 GFSK modulation
 2Mbps air data rate

• Power Management

 Integrated voltage regulator
 1.9 to 3.6V supply range

1.2 Product specification

This module carries RF device nRF24L01P made in NORDIC company.
Please refer to a nRF24L01P data sheet submitted by NORDIC company ab out the details of the
RF device.
The main specifications of this RF module are shown as follows.

Function Item Main specifications

Use device nRF24L01P made in NORDIC company
Frequency band 2405MHz～2480MHｚ
Antenna electricity Max. 0dBm

General specifications

Oscillation

Power supply voltage +1.9V～+3.6V(Normal +3.0V)
External form dimensions 20.5±0.3 x 18.5±0.3 X 4.2±0.3 [mm]
Weight 1.3g
Operating temperature 0℃～40℃
Transmitting power Max. 0dBm

RF transmission part

Frequency deviation 50ppm or less
Modulation method GFSK

RF reception part Frequency deviation 50ppm or less

Built-in Pattern antenna

Antenna

Form Monopole λ/4
Directivity No directivity

User outside interface Serial communication SPI-IF

Crystal oscillation 16MHz are built in it
（A PLL frequency synthesizer method）

a

2 Module specifications

2.1 Partial explanation

Each part of this module is explained.

Proof seal 2.4 GHz monopole antenna User interface connector

Shield cover

Part Explanation

2.4 GHz monopole antenn
Proof seal
User interf ace c onnect or

Attention:

Please do not put the label etc. on the antenna.

When the seal and the label are put on the antenna, the characteristic of the antenna
might be ruined.

It is a built-in antenna of the RF module.
The antenna is made by the copper foil pattern of PCB.
It is the certification label of this module.
It is an interface connector to use in a user.
Please refer to interface specifications for the details.