UM10473 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
User manual Rev. 01. — 29 August 2011 3 of 19
NXP Semiconductors
UM10473
OL2300 Demo board user manual
1. Introduction
OL2300 is a UHF ASK/FSK fractional-N transmitter IC. The device provides a fully
integrated fractional-N PLL frequency synthesizer and a power amplifier to drive an
external antenna.
The purpose of this manual is to provide an introduction to the evaluation board named
"LID1204", which is intended to evaluate the internal functional blocks of the OL2300..
The evaluation board is equipped with a serial RS232 interface to connect the board to a
PC. A Windows GUI provides a means to access the different special function registers of
OL2300. The onboard controller PCF7941 acts as a logical interface between RS232 and
OL2300 and it is programmed accordingly.
The power amplifier output of OL2300 is matched to 50 and can be directly connected
to appropriate measurement devices.
The evaluation board is available in two versions; one for the 315 MHz and one for the
434 MHz ISM frequency bands. Each version has a different mounting for the crystal and
different matching network of the 50 SMA connector output.
An 868 MHz version can be created by using the 434 MHz board, and changing some of
the component values (see Figure 1
).
Section 2 “
Evaluation board schematic” gives details of component placement, usage and
typical measurement results.
