NXP Semiconductors BGA7210, Руководство пользователя

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UM10480 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
User manual Rev. 2 — 26 July 2011 9 of 13
NXP Semiconductors
UM10480
Variable gain amplifier BGA7210
6.4 Noise
The Noise Figure (NF) is measured using a calibrated noise source with a specified
Excess Noise Ratio (ENR), and a spectrum analyzer with a noise measurement option.
The system is calibrated with this noise source in order to measure accurate noise figures;
see
Figure 7 .
Fig 7. Noise figure measurement set-up
019aac411
POWER
SUPPLY
MMIC
DUT
NOISE
SOURCE
SPECTRUM
ANALYZER
including
NOISE OPTION