NXP Semiconductors
UM10491
BGU7004 GPS LNA EVB
UM10491
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 1.0 — 14 June 2011
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Fig 6. O-IIP3 at V
cc
= 1.5 V
Fig 7. O-IIP3 at V
cc
= 1.8 V
Fig 8. O-IIP3 at V
cc
= 2.85 V
6.2 In-band 1dB gain compression due to 850 MHz and 1850 MHz jammers
As already stated before, signal levels in the GPS frequency band of –130 dBm average
will not cause linearity problems in the GPS band itself. This of course is also valid for the
1 dB gain compression in-band. The 1 dB compression point at 1575.42 MHz caused by
cell phone TX jammers however is important. Measurements have been carried out using
the set-up shown in
