NXP Consolidates GPS Signal Reception with Extraordinarily Tiny LNAs

NXP Semiconductors has unveiled the BGU8006 low-noise amplifier – the tiniest GPS LNA on the market designed for very small portable devices. Available in an extraordinarily tiny WLCSP (wafer-level chip-scale package), the latest GPS LNAs have a footprint of just 0.65 x 0.44 x 0.2 mm and require only two external components, saving 38 percent in PCB space compared to the smallest solution on the market today.  Also featuring an extremely low noise figure of 0.60 dB, the LNAs offer the best reception for weak GPS signals by dynamically suppressing strong cellular and WLAN transmit signals. NXP is showing the BGU800x series LNAs on request at the IEEE MTT-S International Microwave Symposium (IMS2012) in Montreal this week (booth 607).

The new BGU8006 LNA uses adaptive biasing techniques – enabled by NXP’s state-of-the-art QuBIC4Xi SiGe:C BiCMOS process technology – to instantly detect any output power from jammers, and compensate by temporarily increasing the current. Adaptive biasing dynamically suppresses strong cellular, WLAN and Bluetooth signals, which can drive typical GPS LNAs into compression, lowering gain, generating intermodulation and harmonics that can overpower weak signals, and causing poor GPS reception. With the BGU8006, adaptive biasing improves linearity with a 10 dB better IP3 under -40 to -20 dBm jamming conditions and provides effective GPS output with jammer power up to -15 dBm.

The BGU8006 LNA uses wafer-level chip-scale package (WLCSP) technology, which is ideal for space-constrained applications. WLCSP minimizes parasitic inductance because there are no leads, bond wires or interposer connections, and optimizes package size, cost and thermal characteristics.

NXP’s BGU800x series LNAs are ideally suited for a wide range of applications using GPS technology, including smartphones, feature phones, tablets, personal navigation devices (PNDs), digital still cameras (DSCs), digital video cameras (DVCs), RF front-end modules for phones, and complete GPS chipset modules. For automotive telematics applications such as emergency call (eCall) and toll collection systems, NXP also offers the BGU7004 and BGU7008, which are AEC-Q100 qualified.

12-Jul-2012 09:44:25