SE4100L-R

SE4100L GPS Receiver IC Applications Mobile phone & PDA accessories Portable navigation and personal security Security systems Asset tracking Telematics equipment Product Description The SE4100L is an integrated GPS receiver designed to receive the L1 signal at 1575.420 MHz. The receiver has a low IF architecture and integrates all of the amplifier, oscillator, mixer and IF sampling functions. The high level of integration reduces the external component count to just 14 passives in addition to power supply de-coupling and a 16.368 MHz crystal. Furthermore, elimination of the need for an external VCO resonator and RF filter reduces the critical off-chip RF circuitry to just three matching components to achieve optimum noise match at the LNA input. Combined with the 4x4 mm LPCC package, this results in a very small circuit footprint with no need for electrical screening in many applications. The SE4100L’s small size and BOM requirement is complemented by just 35 mW typical operating power consumption. Digitally controlled shutdown modes enable the 16.368 MHz clock signal to the baseband processor to be maintained separately from operation of the rest of the receiver. A switchable gain LNA enables the SE4100L to be used with either a local passive antenna or with a remote active antenna without changing the circuit configuration. An image reject mixer downconverts the RF signal to a 4.092 MHz IF. The integrated IF filter feeds a combiner, limiter and output latch. The output signal is a 1-bit quantized 4.092 MHz digital IF. Features 35mW typical power consumption Single conversion radio with integrated IF filters On-chip, gain switchable LNA Low LNA noise figure, 1.9 dB typ. On chip crystal oscillator can be powered up independently Fully integrated VCO, resonator and PLL Remote antenna current detection 4x4 mm 24 pin QFN - Pb Free and RoHS compliant package Ordering Information Type SE4100L-R Package 24 Pin QFN Remark Shipped in Tape & Reel Functional Block Diagram LowGain LNAOut MixIn RF Amp Mixers IF Filter LNAIn LNA AntOK AntDetP AntDetN Xtal1 Ant current monitor Phase Det. ÷96 I Q ~ ~ ~ +45° / -45° Quadrature ÷2 Phase Shift / Combiner Σ D Clk Q DataOut ~ Xtal2 Xtal Oscillator RxEnb OscEnb Vtune ~ VCO D-type 27-DST-02 Rev 2.4 May-26-2009 ClkOut 1 of 2 SE4100L GPS Receiver IC http://www.sige.com Email: sales@sige.com Customer Service Locations: North America: 1050 Morrison Drive, Suite 100 Ottawa ON K2H 8K7 Canada Phone: +1 613 820 9244 Fax: +1 613 820 4933 Hong Kong Phone: +852 3428 7222 Fax: +852 3579 5450 San Diego Phone: +1 858 668 3541 (ext. 226) Fax: +1 858 668 3546 United Kingdom Phone: +44 1279 464217 Fax: +44 1279 464201 Product Preview The datasheet contains information from the product concept specification. SiGe Semiconductor, Inc. reserves the right to change information at any time without notification. Preliminary Information The datasheet contains information from the design target specification. SiGe Semiconductor, Inc. reserves the right to change information at any time without notification. Production testing may not include testing of all parameters. Information furnished is believed to be accurate and reliable and is provided on an “as is” basis. SiGe Semiconductor, Inc. assumes no responsibility or liability for the direct or indirect consequences of use of such information nor for any infringement of patents or other rights of third parties, which may result from its use. No license or indemnity is granted by implication or otherwise under any patent or other intellectual property rights of SiGe Semiconductor, Inc. or third parties. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SiGe Semiconductor, Inc. products are NOT authorized for use in implantation or life support applications or systems without express written approval from SiGe Semiconductor, Inc. Copyright 2009 SiGe Semiconductor, Inc. All Rights Reserved 27-DST-02 Rev 2.4 May-26-2009 2 of 2