MRFIC1504

Freescale Semiconductor, Inc. Order this document by MRFIC1504/D ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 Integrated GPS Downconverter MRFIC1504 2.7 V Operation 28 mA Typical Current Consumption Low–Cost, Low–Profile Plastic LQFP Package www.DataSheet4U.com This integrated circuit is intended for GPS receiver applications. The dual c o n v e r s i o n d e s i g n i s i m p l e m e n t e d i n M o t o r o l a ’s l o w – c o s t , high–performance MOSAIC 5™ silicon bipolar process and is packaged in a low–cost surface mount LQFP–48 package. In addition to the mixers, a VCO, PLL, Crystal Oscillator, A/D converter and a loop filter are integrated on–chip. Output IF is nominally 4.1 MHz. 105 dB Typical Conversion Gain 1.575 GHz GPS DOWNCONVERTER SEMICONDUCTOR TECHNICAL DATA Freescale Semiconductor, Inc... MOSAIC 5 is a trademark of Motorola, Inc. ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 ORDERING INFORMATION Device MRFIC1504R2 Operating Temperature Range TA = –40 to 85°C 48 1 Package LQFP–48 PLASTIC PACKAGE CASE 932 (LQFP–48) Pin Connections and Functional Block Diagram LNA VCC 36 LNA In LNA Gnd 37 LNA 38 23 VCC Mixer 2 Gnd IF 2 Limiter VCC Gnd Limiter Gnd Limiter In B Limiter In A Limiter Bias Limiter Out Enable LNA Gnd 35 LNA Out 34 LNA Gnd 33 Gnd 32 Mixer 1 Mixer 1 VCC Gnd In Mixer 1 31 30 29 IF 1 28 VGA Level 27 VGA In B 26 VGA In A 25 24 Gnd LNA Gnd Vreg VCO Tank 39 40 41 22 21 20 19 18 PD 17 16 15 14 13 5 VCC 6 Crystal 7 Gnd 8 Gnd 9 Crystal ...