RFM219SW

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high-purity VCO and a low noise fractional-N PLL with an output frequency resolution of 24.8 Hz. See the table below for the

demodulation, frequency and symbol rate information.

Table 9. Modulation, Frequency and Symbol Rate

Parameter

Value

Unit

Demodulation

OOK, FSK and GFSK

-

Frequency

300 to 960

MHz

Frequency Resolution

24.8

Hz

Symbol Rate

OOK: 0.1 to 40

ksps

(G)FSK: 0.1 to 100

ksps

5.3 Embedded EEPROM and RFPDK

The RFPDK is a PC application developed to help the user to configure the HOPERF NextGenRF

intuitional way. The user only needs to connect the USB Programmer between the PC and the device, fill in/select the proper

value of each parameter on the RFPDK, and click the “Burn” button to program the configurations into the device. The

configurations of the device will then remain unchanged until the next programming. No external MCU control is required in the

application program.

The RFPDK also allows the user to save the active configuration into a list by clicking on the “List” button, so that the saved

configuration can be directly reloaded from the list in the future. Furthermore, it supports exporting the configuration into a

hexadecimal file by clicking on the “Export” button. This file can be used to burn the same configuration into a large amount of

devices during the mass production, or used as an HEX file to load into the external MCU program for on-line configuration using

registers. See the figure below for the accessing of the EEPROM.

RFM219SW

RFPDK

EEPROM

Interface

CSB

SCL

SDA

HOPERF USB

Programmer

Figure 11. Accessing Embedded EEPROM

For more details of the HOPERF USB Programmer and the RFPDK, please refer to “AN103 CMT211xA-221xA One-Way RF

Link Development Kits Users Guide”.

5.4 All Configurable Options

Besides the demodulation, frequency and symbol rate, more options can be used to customize the device. The following is a

table of all the configurable options. On the RFPDK, the Basic Mode only contains a few options allowing the user to perform

easy and fast configurations. The Advanced Mode shows all the options that allow the user to customize the device in a deeper

level. The options in “Basic Mode” are a subset of that in the “Advanced Mode”.

All the details of these parameters will be given in the document “AN138 RFM219SW Configuration Guideline”. In this datasheet,