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GP2021 Datasheet(PDF) 1 Page - Mitel Networks Corporation |
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GP2021 Datasheet(HTML) 1 Page - Mitel Networks Corporation |
1 / 62 page The GP2021 is a 12 channel C/A code baseband correlator for use in NAVSTAR GPS and GLONASS satellite navigation receivers. The GP2021 complements the GP2015 and GP2010 C/A code RF downconverters available from Mitel Semiconductor. The GP2021 is compatible with most 16 bit and 32 bit microprocessors, especially those from Motorola and Intel, with additional on–chip support for the ARM60 32 bit RISC processor. When the ARM60 is used, the on–chip memory management functions allow implementation of a full GPS receiver with minimal external logic. The GP2021 allows individual channel de–activation, for systems not requiring full 12 channel operation, to save power and processor loading. Receiver power may be further conserved by reducing the supply voltage to 2.2V under battery backup. Although all system functions are disabled, the 32.768kHz oscillator and Real Time Clock are maintained for the microprocessor to estimate satellite visibility at power on to reduce signal acquisition time. A development system called the GPS Architect is available as a basis for receiver design using the GP2021 and associated products. FEATURES s 12 Fully Independent Correlation Channels s 1PPS UTC Aligned Timing Output s On–Chip Dual UART and Real Time Clock s Compatible with most 16 and 32 bit Microprocessors s Memory Control Logic for ARM60 Microprocessor s Low Voltage, Low Current Power–Down Mode s Power Dissipation 150mW Typical s Compatible with GP2015 and GP2010 RF Front Ends s Battery Backup Voltage 2.2V (min) APPLICATIONS s GPS Navigation Systems s High Integrity Combined GPS–GLONASS Receivers s GPS Geodetic Receivers s Time Transfer Receivers ORDERING INFORMATION GP2021/IG/GQ1R Fig.1 Pin connections - top view GQ80 GP2021 PIN 1 PIN 1 IDENT PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DESCRIPTION MULTI_FN_IO POWER _GOOD NRESET_OP NARMSYS XIN XOUT TXA TXB RXA RXB NROM / NC NEEPROM / NC NSPARE_CS / NC V DD V SS NRAM / BC NW0 / NC NW1 / NC NW2 / NC NW3 / NC NRD / NC ARM_ALE / NC DBE / NC ACCUM_INT MEAS_INT NBW / WRPROG NMREQ / DISCIP2 NOPC / NINTELMOT NRW / DISCIP3 MCLK / NC ABORT / MICRO_CLK DISCIO A22 / READ VDD VSS A21 / NCS A20 / WREN A9 A8 A7 DESCRIPTION A6 A5 A4 A3 A2 A1 / ALE_IP A0 / NRESET_IP D0 D1 D2 D3 D4 D5 D6 V DD V SS D7 D8 D9 D10 D11 D12 D13 D14 D15 PLL_LOCK VDD DISCOP V SS CLK_T CLK_I V SS SAMPCLK V DD NBRAM / DISCIP4 SIGN0 MAG1 SIGN1 MAG1 DISCIP1 PIN 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 DS4077 - 2.6 July 1996 GP2021 GPS 12 channel Correlator Advance Information RELATED PRODUCTS PART DESCRIPTION DATASHEET REFERENCE GP2015 GPS Receiver RF Front End DS4374 – TQFP 48 package GP2010 GlPS Receiver RF Front End DS4056 – PQFP 44 package DW9255 35.42MHz SAW Filter DS3861 P60ARM 32 bit RISC Microprocessor DS3553 GPS Architect GPS 12 Channel DS4004 Receiver Development System |
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Similar Description - GP2021 |
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