AN11102 PHILIPS [NXP Semiconductors], AN11102 Datasheet - Page 7

• Manufacturer Part Number: AN11102
• Description: BFU725F/N1 2.4 GHz LNA evaluation board
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
4. Required Equipment
5. Connections and Setup
AN11102
Application note
In order to measure the evaluation board the following is necessary.
The BFU725F/N1 2.4GHz EVB is fully assembled and tested. Please follow the steps
below for a step-by-step guide to operate the EVB and testing the device functions.
1. Connect the DC power supply set to 3V to the V
2. Connect the RF signal generator and the Spectrum Analyzer; to the RF input and the
3. Turn on the DC power supply and it should read approximately 8 mA.
4. Enable the RF output of the generator; the Spectrum analyzer displays a tone of
5. Instead of using a signal generator and spectrum analyzer one can also use a
6. For Noise figure evaluation, either a Noise-figure analyzer or a spectrum analyzer
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RF output of the EVB respectively. Do not turn on the RF output of the Signal
generator yet, set it to -35dBm output power at 2.4GHz, set the spectrum analyzer on
2.4GHz center frequency and a reference level of 0dBm.
2.4GHz at around –20dBm.
Network Analyzer NWA in order to measure Gain as well as in- and output return
loss
with noise option can be used. The use of a 5 dB noise source, like the Agilent 364B
is recommended. When measuring the noise figure of the evaluation board, any kind
of adaptors, cables etc between the noise source and the EVB should be avoided,
since this affects the noise performance.
DC Power Supply up to 30 mA at 3V.
An RF Signal generator capable of generating an RF signal at the operating
frequency of 2.4 GHz.
An RF spectrum analyzer that covers at least the operating frequency of 2.4 GHz
as well as a few of the harmonics, so up to 6 GHz should be sufficient.
”Optional” a version with the capability of measuring noise figure is convenient.
Amp meter to measure the supply current (optional).
A Network analyzer for measuring gain, return loss and reverse Isolation.
Noise figure analyzer.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 28 July 2011
CC
and GND terminals.
BFU725F/N1_2.4GHz LNA EVB
AN11102
© NXP B.V. 2011. All rights reserved.
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