AN11656: BGS8H2 LTE LNA with Bypass Switch Evaluation Board
Application note for the BGS8H2 LTE LNA evaluation board (2300–2690 MHz). Covers circuit design, BOM, PCB layout, and testing for low noise figure and bypass mode performance.
Overview
This document describes the evaluation board (OM17007) for NXP’s BGS8H2, a low-noise amplifier with an integrated bypass switch designed for LTE receiver applications in the 2300 MHz to 2690 MHz range. The BGS8H2 features a 1.1 dB noise figure and 12.5 dB gain in a leadless SOT1232 package. The application note provides a complete circuit diagram, a bill of materials featuring Murata capacitors and inductors, and detailed PCB layout guidelines. It also outlines experimental setups for characterizing RF performance, including gain, noise figure, IIP3, and power consumption across gain and bypass modes.
Use Cases
- Evaluating BGS8H2 RF performance in LTE high-band applications
- Designing RF front-end modules for mobile devices and tablets
- Optimizing LNA input matching and PCB layout for LTE receivers
- Testing receiver sensitivity and linearity enhancement with bypass functionality
Topics
Referenced Parts
GRM1555
Murata
Capacitor 0402 1μF Murata GRM1555
LQG 15H
Murata
Multilayer Non-Magnetic Core LQG 15H
LQP 03T
Murata
Film LQP 03T
LQW 15A
Murata
Wirewound Non-Magnetic Core LQW 15A
LQW 18A
Murata
Wirewound Non-Magnetic Core 18A
GRM1555
Murata
C1 Capacitor 0402 1μF Murata GRM1555 Decoupling
364B
Agilent
use of a 5 dB noise source, like the Agilent 364B is recommended
2.7nH
Murata
L1 Inductor 0402 2.7nH Murata LQW15 Input matching
| 90120-0763 | Molex | JUMPER Stage Molex, PCB header, Vertical, 1 row, 3 way 90120-0763 |
| 90121-0763 | Molex | DC header Molex, PCB header, Right Angle, 1 row, 3 way 90121-0763 |
| 8473B | Agilent | SCHOTTKY DETECTOR (AGILENT 8473B) |
| 142-0701-841 | Johnson | SMA RD connector Johnson, End launch SMA 142-0701-841 |
| LQW15 | Murata | Inductor 0402 2.7nH Murata LQW15 |
| BGS8H2 | NXP | NXP Semiconductors’ BGS8H2 LTE Low Noise Amplifier |
| BGS8L2 | NXP | BGS8x2 LTE LNA evaluation board (used for BGS8L2, BGS8M2 and BGS8H2) |
| BGS8M2 | NXP | BGS8x2 LTE LNA evaluation board (used for BGS8L2, BGS8M2 and BGS8H2) |
| LQW15 | Murata | L1 Inductor 0402 2.7nH Murata LQW15 Input matching |
| LQW15 | Murata | The evaluation board is supplied with Murata LQW15 series inductor of 2.7 nH. This is a |
| SOT1232 | NXP | NXP SOT1232 |
| GRM1555 | Murata | Capacitor 0402 1μF Murata GRM1555 |
| LQG 15H | Murata | Multilayer Non-Magnetic Core LQG 15H |
| LQP 03T | Murata | Film LQP 03T |
| LQW 15A | Murata | Wirewound Non-Magnetic Core LQW 15A |
| LQW 18A | Murata | Wirewound Non-Magnetic Core 18A |
| GRM1555 | Murata | C1 Capacitor 0402 1μF Murata GRM1555 Decoupling |
| 364B | Agilent | use of a 5 dB noise source, like the Agilent 364B is recommended |
| 2.7nH | Murata | L1 Inductor 0402 2.7nH Murata LQW15 Input matching |