NXP SiGe:C GPS LNAs BGU700x/BGU800x The best reception of GNSS signals with the smallest footprint By dynamically suppressing strong cellular and WLAN transmit signals, an industry first, these LNAs offer the best reception of weak GPS signals. Linearity improves with a 10 dB better IP3 under -40 to -20 dBm jamming conditions, while NF remains below 1 dB. Requiring only two external components, they save up to 50% in PCB size and 10% in component cost, offering the smallest footprint in the market. Key features Low noise figure: 0.60 dB System-optimized gain of 16.5 or 19 dB Adaptive biasing dynamically suppresses strong cellular and WLAN transmit signals, resulting in improved linearity of 10 dB better IP3 under -40 to -20 dBm jamming conditions and effective GPS output with jammer powers up to -15 dBm. AEC-Q100 qualified (BGU7004, BGU7008) for highest reliability in harsh conditions Only two external components required Small 6-pin leadless package: 1.45 x 1.0 x 0.5 mm or WL-CSP package: 0.65 x 0.44 x 0.2 mm Key benefits Maintains optimal GPS signal reception for as long as possible Significant PCB size savings (50%) Lower component cost (10%) Applications Smart phones, feature phones Tablets Personal Navigation Devices (PNDs) Digital Still Camera (DSCs) Digital Video Camera (DVCs) RF front-end modules (used in phones) Complete GPS chipset modules (used in DSCs) Automotive applications (BGU7004/8) : toll collection, emergency call These SiGe:C low noise amplifiers (LNAs) improve the reception of GPS signals, including GloNass and Compass. Available in extremely small 6-pin packages, they reduce footprint, lower cost, and enhance reception in systems that use an active or patch antenna. GPS has become a standard feature in a very wide range of consumer products, from personal navigation devices to digital video cameras, watches, electric cars, and more. GPS signal power levels are weak and below the noise floor at -155 dBm. In many of these products, especially smart phones, strong transmitters such as WLAN and cellular can drive the GPS LNA into compression. When the GPS LNA is in compression, it has lower gain which causes worse GPS reception. And when in compression, the LNA generates intermodulation products and harmonics from the transmitter signals, which can overpower the weak GPS signals and lead to no GPS reception. solution with a 9.06 mm2 application area. Using BGU8006, designers can save 38% board space compared to the smallest competitor solution. Application diagram external active antenna The NXP BGU700x/BGU8007 series use adaptive biasing to immediately detect any output power from jammers, and compensate by temporarily increasing the current. As a result, optimal GPS signal reception is maintained for as long as possible. LNA BPF Each device in the BGU700x/BGU8007 series requires only one input matching inductor and one supply decoupling capacitor to complete the design. This creates a very compact design and lowers the bill of materials. Designers can save up to 50% in PCB size and 10% in component cost. For example the BGU7005 is in a 1.45 x 1 mm package with application area at only 4.53 mm2. This is 50% smaller than a comparable SPDT embedded antenna LNA BPF BPF GPS RECEIVER IC 001aan955 Smallest footprint Type BGU8006 BGU7005/BGU7005/BGU8007 Competitor Competitor Competitor Competitor Competitor Competitor MMIC * Package size Package Wafer level package Thin small leadless package Thin small leadless package Wafer level package Thin small leadless package Thin small leadless package Wafer level package Thin small outline non-leaded X Y Pins Pitch Area mm mm mm # mm mm2 0.65 x 0.44 1.45 x 1 1.1 x 0.7 0.86 x 0.86 1.4 x 1.26 2 x 1.3 1.26 x 0.86 1.5 x 1.5 0.9 1.7 1.35 1.1 1.65 2.25 1.5 1.75 0.7 1.25 0.95 1.1 1.5 1.55 1.1 1.75 6 6 6 4 6 6 6 6 0.22 0.5 0.4 0.4 0.48 0.5 0.4 0.5 0.62 2.13 1.28 1.21 2.48 3.49 1.65 3.06 SMD's Appl. SMD size SMD's area Appl. area X Y # mm mm mm2 mm2 2 2 3 4 4 4 6 5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2.4 2.4 3.6 4.8 4.8 4.8 7.2 6 3.02 4.53 4.88 6.01 7.28 8.29 8.85 9.06 * Incl. keep out area on pcb (common used assembly rule) Selection guide Supply current Insertion power gain Noise figure Input power at 1 dB gain compression Input third-order intercept point f1 = 1713 MHz, f2 = 1851 MHz Vcc Icc |s21|2 NF PL(1dB) IP3i (V) (mA) (dB) (dB) (dBm) (dBm) Typ 0.8 0.9 0.9 0.9 0.9 0.75# BGU8006 WL-CSP 1.5 3.1 - 3.5 - - 17.1**** - 0.6# -15 -12 - - Vcc = 2.85 V, Typ 20 - Vcc = 2.85 V, Min Max Vcc = 2.5 V, Icc = 5 mA 18.3 16.5* 16.5* 18.5** 18.5** 19.0*** * = 16.5 dB without jammer / 17.5 dB with jammer ** = 18.5 dB without jammer / 19.5 dB with jammer *** = 19.0 dB without jammer / 20.5 dB with jammer **** = 17.1 dB without jammer / 18.5 dB with jammer Typ Vcc = 2.2 V, Typ 16 - Vcc = 2.2 V, Min 15 - Vcc = 1.8 V, Typ 4.5 4.5 4.8 4.8 4.6 Vcc = 1.8 V, Min Typ Vcc = 1.5 V, Typ 3 - Vcc = 1.5 V, Min Min -14 -14 -15 -15 - - -20 -11 - -11 -8 -11 - -11 -8 -12 - -14 -11 -12 - -14 -11 - -13 -10 - 1 4 5 5 1 1 - 9 9 4 4 - 2 5 0 - 5 5 2 2 - 12 12 5 5 - -10 - - - 2 - - - - 5 - - - - - Vcc = 2.85 V, Typ 2.85 2.85 2.85 2.85 2.85 2.2 Vcc = 2.85 V, Min Max Vcc = 2.2 V, Typ 2.2 1.5 1.5 1.5 1.5 1.5 Vcc = 2.2 V, Min Min Vcc = 1.8 V, Typ Min SOT891 SOT886 SOT886 SOT886 SOT886 SOT886 Vcc = 1.8 V, Min Max BGU7003 BGU7004^ BGU7005 BGU7007 BGU7008^ BGU8007 Vcc = 1.5 V, Min Package Vcc = 2.5 V, Icc = 5 mA Supply voltage Vcc = 1.5 V, Typ Type @ 1.575 GHz -7 ^ = AEC-Q101 qualified (some limitations apply) # = Evaluation board losses excluded www.nxp.com © 2012 NXP Semiconductors N.V. 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