NXP AN11103: Externally-matched 900 MHz LNA using BGU7005
Application note for a 900 MHz ISM band LNA design using the NXP BGU7005, featuring circuit simulations, PCB layout, bill of materials, and performance test results.
Overview
This application note details the design of an externally-matched Low Noise Amplifier (LNA) for the 900 MHz ISM band using the NXP BGU7005. Originally intended for GPS applications, the BGU7005 is reconfigured here to provide high gain and low noise in the 900 MHz range. The document provides a complete evaluation board design including schematics, bill of materials, and PCB layout. It features Agilent Design System (ADS) circuit simulations and provides typical performance data measured at 1.8 V, such as a 18.97 dB power gain, 1.38 dB noise figure, and -5.0 dBm input IP3.
Use Cases
- 900 MHz ISM band receivers
- RF front-end modules
- GPS receiver applications
- Cellular handset co-habitation systems
- Wireless telemetry
Topics
Referenced Parts
CON-2PIN
Molex
3 1 J1 90120-0762 Molex CON-2PIN
CON-3PIN
Molex
4 1 J2 90120-0763 Molex CON-3PIN
| 901-10110 | Amphenol | 901-10110 Amphenol CON-SMA-1 |
| 90120-0762 | Molex | 90120-0762 Molex CON-2PIN |
| 90120-0763 | Molex | 90120-0763 Molex CON-3PIN |
| GRM1555C1H102JA01_ | Murata | GRM1555C1H102 JA01 Murata 1000 pF |
| GRM1555C1H2R4CZ01D | Murata | GRM1555C1H2R4 CZ01D Murata 2.4 pF |
| BGU7005 | NXP | The BGU7005 is a Low Noise Amplifier (LNA) for Global Positioning Systems (GPS) |
| CRCW04020000Z0ED | Vishay | CRCW04020000Z 0ED Vishay/Dale 0 Ω |
| BGU7005 | NXP | 9 1 U1 BGU7005 NXP |
| 0402CS-15NX | Coilcraft | 0402CS-15NX Coilcraft 15 nH |
| 0402CS-20NX_LU | Coilcraft | 0402CS-20NX_LU Coilcraft 20 nH |
| CON-2PIN | Molex | 3 1 J1 90120-0762 Molex CON-2PIN |
| CON-3PIN | Molex | 4 1 J2 90120-0763 Molex CON-3PIN |