Designed by Infineon the BGAx25L6 family features the world's smallest GNSS LNAs measuring in at just 1.1mm × 0.7mm. The three products in this family differ in terms of gain and linearity but are pin-to-pin compatible and can be used in the same application circuit, which requires only one external component.
BGA725L6: This is the high-gain (~20dB) member of the family. It is particularly suited to applications where gain is more important than linearity, i.e. where jamming effects are not very critical.
BGA825L6: This device is ideal for applications requiring an optimized balance between gain and linearity.
BGA925L6: This family member is typically used in applications where jamming caused by other wireless signals (e.g. cellular or WLAN) is a critical factor. This product is fine-tuned for very high linearity.
Despite differences in gain and linearity, the three LNAs share a best-in-class noise figure and very low current consumption, which are key parameters for handheld applications like smartphones, cellphones, tablets and PNDs. All three devices are also self-shielded to avoid external interference.
These single-chip LNAs come with integrated biasing, RF choke and output matching. This significantly reduces the design timeframe and makes it a lot easier for system engineers to drop the LNA into the receiver frontend and enhance the wireless system's sensitivity.The LNA also features an on-chip on/off switch which can be easily controlled using a DC level equal to that of the power supply voltage. On-chip ESD protection of 2kV HBM results in a high level of ESD robustness and eliminates the risk of ESD strikes when the receiver is in use.
BGAx25L6 family block diagram
Features
- World’s smallest 6-pin GNSS LNA: 0.77mm2
- Supports all navigation standards (GPS, GLONASS, Beidou, Galileo…)
- Only 1 external SMD required
- Includes self-shielding
Applications
- Smartphones and mobile phones
- GPS, GLONASS, Beidou, Galileo systems
- PNDs
- Laptops
- Digital cameras
