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Maestro A2200-A User Manual - 3 Quick Start

Summary of A2200-A

  • Page 1

    Gps receivers a2200-a a description of maestro ’s gps receiver module a2200-a user manual version 1.0

  • Page 2: Revision History

    V1.0 – feb-12 user’s manual page 2 of 35 revision history rev. Date description 0.1 07-11-11 first draft, based on a2200 1.0 12-12-11 updated photo ,pin out information,packing mm-dd-yy name date signature written by happy wen 12-12-11 h w checked by sam law, wallace lee 12-12-11 s l,w l approval by...

  • Page 3: Disclaimer

    V1.0 – feb-12 user’s manual page 3 of 35 disclaimer this document contains proprietary information of maestro wireless solutions limited. It may not be copied or transmitted by any means, passed to others, or stored in any retrieval system or media, without prior consent of maestro or its authorized...

  • Page 4: Table Of Contents

    V1.0 – feb-12 user’s manual page 4 of 35 table of contents 1 introduction ........................................................................................................ 6 1.1 feature overview .............................................................................................. 6 1...

  • Page 5

    V1.0 – feb-12 user’s manual page 5 of 35 9.2 product qualification ....................................................................................... 27 9.3 production test ............................................................................................... 27 10 applications and hin...

  • Page 6: 1 Introduction

    V1.0 – feb-12 user’s manual page 6 of 35 1 introduction the gps module a2200-a is maestro ’s first implementation of csr’s sirfstariv rom chip on gps module. This is highly integrated gps receivers that can be used as smt components. A very easy implementation (power, serial, on_off, and antenna) al...

  • Page 7

    V1.0 – feb-12 user’s manual page 7 of 35 1.2 characteristics overview the module’s most important characteristics are: a2200-a o operable at 3.3v / 41ma @ 1 fix per second o uart interface at 3.3v cmos level o prepared for spi slave support at 3.3v cmos direct passive antenna support switched antenn...

  • Page 8

    V1.0 – feb-12 user’s manual page 8 of 35 1.4 label the a2200-a labels hold the following information: figure 1: a2200-a label the label is placed on the shield of the module. The data matrix code holds the product type, part number, software release, hardware release, factory code, year & week of as...

  • Page 9

    V1.0 – feb-12 user’s manual page 9 of 35 1.5 characteristics the module are characterized by the following parameters. 1.5.1 gps characteristics channels 48, parallel tracking correlators ~ 400,000 frequency l1 (= 1,575 mhz) tracking sensitivity (1) -163 dbm horizontal position accuracy stand alone ...

  • Page 10: 2 Ordering Information

    V1.0 – feb-12 user’s manual page 10 of 35 2 ordering information 2.1 gps receivers a2200-a the order number is built as follows: a2200-axxxx a2200-a is the model name. The “xxxx” refers to the current part number on the module. 2.2 packing of the a2200-a the a2200-a gps module come in a tape and ree...

  • Page 11

    V1.0 – feb-12 user’s manual page 11 of 35 figure 3: a2200-a tape specifications (2) figure 4: a2200-a tape specifications (3) one complete reel holds 1300 pcs a2200-a modules. There are 2 kinds of packaging for shipment: a: one box holds 1 reel reel diameter: 33 cm inner box dimensions: 36(w) x 36(l...

  • Page 12

    V1.0 – feb-12 user’s manual page 12 of 35 inner box dimensions: 36 (w) x 36 (l) x 4.5 (h) cm outer box dimensions: 38 (w) x 38 (l) x 16 (h) cm gross weight: 4.92 kg net weight: 2.34 kg.

  • Page 13

    V1.0 – feb-12 user’s manual page 13 of 35 2.3 additional equipment eva2200-a evaluation kit (including one module a2200-a) table 3: additional equipment a detailed description of the eva2200-a evaluation kit can be found in the appro- priate manual..

  • Page 14: 3 Quick Start

    V1.0 – feb-12 user’s manual page 14 of 35 3 quick start in order to allow an easy and quick start with the a2200-a module, this chapter pro- vides a short overview on the important steps to be taken to receive nmea mes- sages with position information on a serial port (uart). Note 1 : the a2200-a ne...

  • Page 15

    V1.0 – feb-12 user’s manual page 15 of 35 note : it is recommended to supply vcc continuously! Use sirfaware tm or other low power modes to reduce power consumption of the module while no position information is required. Gnd 1 2 3 4 5 6 7 8 9 c1 0 .1 µ f c2 0 .1 µ f c3 0 .1 µ f c4 0 .1 µ f c5 0 .1 ...

  • Page 16

    V1.0 – feb-12 user’s manual page 16 of 35 antenna input of the module) should not exceed 30 db. The noise figure should be ≤ 1.5db. 3.3 serial port settings in uart operation (defined by the external pull-up resistor as outlined in minimum configuration) the default settings are: nmea, 4800 baud, 8 ...

  • Page 17: 4 Mechanical Outline

    V1.0 – feb-12 user’s manual page 17 of 35 4 mechanical outline 4.1 details component side a2200-a all dimensions in [mm, (inch)] figure 7: mechanical outline component side a2200-a.

  • Page 18

    V1.0 – feb-12 user’s manual page 18 of 35 4.2 details solder side a2200-a solder pad size (outer pads): 1.0 x 0.8 solder pad size (inner pads): 1.2 x 1.2 all dimensions in [mm] figure 8: mechanical outline solder side a2200-a.

  • Page 19: 5 Pin-Out Information

    V1.0 – feb-12 user’s manual page 19 of 35 5 pin-out information 5.1 layout a2200-a “pin 1” marker figure 9: pin-out information (bottom view) a2200-a center ground pins are for shock / vibration resistance purpose..

  • Page 20

    V1.0 – feb-12 user’s manual page 20 of 35 5.2 description a2200-a signals pin symbol function description 1 gpio2 input/output leave open 2 vout voltage output permanent 1.8v voltage output for up to 20ma current max. 3 tx0 spi do output serial output 0, nmea out if configured for uart spi data out ...

  • Page 21

    V1.0 – feb-12 user’s manual page 21 of 35 6 electrical characteristics 6.1 operating conditions pin description min typical max 3 vcc 3.0v 3.3v 3.6v full power mode (searching) peak current (1) 69ma full power mode (searching) average current (2) 52 ma full power mode (tracking) average current (3) ...

  • Page 22

    V1.0 – feb-12 user’s manual page 22 of 35 6.3 dc electrical characteristics symbol parameter min max unit tx0, wakeup voh @ 4ma 2.6 vcc v vol @ 4ma 0.45 v rx0 vih 2.0 vcc v vil 0.8 v nrst for safe reset 0.2 v on_off vih 1.35 vcc v vil -0.3 0.45 v bootsel vih 1.35 2.2 v table 7: dc electrical charact...

  • Page 23: 7 Mounting

    V1.0 – feb-12 user’s manual page 23 of 35 7 mounting this chapter describes the suggested mounting process for the a2200-a receiver module. In a rohs compliant product with a rohs compliant process it is recom- mended to use chemical tin as the counter- part to the module’s pins. This will guarantee...

  • Page 24: 8 Use Of Gps Antennas

    V1.0 – feb-12 user’s manual page 24 of 35 8 use of gps antennas 8.1 connecting a gps antenna to the gps receiver the ant pin is used to connect a gps antenna to the receiver. The design of the antenna connection has to be done strictly according to rf design rules. A 50 pcb strip line is required. T...

  • Page 25

    V1.0 – feb-12 user’s manual page 25 of 35 in this case, the width should be about 1.8 times the height of the pcb: w = 1.8 x h in the example, one would get a width of w = 1.8 x 0.8 mm = 1.44 mm..

  • Page 26

    V1.0 – feb-12 user’s manual page 26 of 35 8.2 antenna connections 8.2.1 passive antennas a passive antenna connected to ant_in input (pin 11) should be placed as close as possible to the gps receiver. The signal power lost by the antenna cable or lost by the strip line on the pcb can not be recovere...

  • Page 27: 9 Quality And Reliability

    V1.0 – feb-12 user’s manual page 27 of 35 9 quality and reliability 9.1 environmental conditions operating temperature - 40 … +85 c operating humidity max. 85% r. H., non-condensing, at 85 c msl jedec (moisture sensitivity level) 3 storage 6 months in original package. Table 6: environmental conditi...

  • Page 28: 10 Applications and Hints

    V1.0 – feb-12 user’s manual page 28 of 35 10 applications and hints 10.1 initial module start after initially applying power to the module, it is necessary to start the internal firm- ware by toggling the on_off pin. Toggling is done by pulling the signal to high for about 100ms. This first toggling...

  • Page 29

    V1.0 – feb-12 user’s manual page 29 of 35 duty cycles, it is necessary to toggle the on_off pin. Toggling is done by pulling the signal to high for about 100ms. 10.5 hibernate mode in order to enter hibernate mode it is necessary to send a shutdown command or to toggle to on_off pin by pulling the s...

  • Page 30

    V1.0 – feb-12 user’s manual page 30 of 35 10.7 antenna status adaptation this chapter shall give assistance in designing a circuit for detecting if an active antenna is connected to the module. The information about the antenna status can be derived from the antstat signal generated by this circuit....

  • Page 31

    V1.0 – feb-12 user’s manual page 31 of 35 10.7.2 antenna sensor with current limiter this proposal is similar to the first one, but includes a current limiter. Comments and notes as above apply. We strongly recommend simulating and testing the gps receiver integrated in your product design before im...

  • Page 32

    V1.0 – feb-12 user’s manual page 32 of 35 10.8 vant pin the vant pin is an input pin. The supply voltage for an active gps antenna on the ant input has to be fed into the vant pin. The easiest way to do that is to connect vcc to vant. The maximum cur- rent is 50 ma. Note: shortcut between ant and gn...

  • Page 33

    V1.0 – feb-12 user’s manual page 33 of 35 11 evaluation kit eva2200-a for demonstration and easy evaluation of gps performance maestro offers an evaluation kit (including one gps a2200-a module). It contains a usb interface with according drivers to connect easily to a pc. The usb interface is an ex...

  • Page 34: 12 Related Information

    V1.0 – feb-12 user’s manual page 34 of 35 12 related information 12.1 contact this manual is created with due diligence. We hope that it will be helpful to the user to get the most out of the gps module. Inputs regarding errors or mistaken verbalizations and comments or proposals to maestro, hongkon...

  • Page 35

    V1.0 – feb-12 user’s manual page 35 of 35 13 list of figures figure 1: a2200-a label ........................................................................................... 8 figure 2: a2200-a tape specifications (1) ...............................................................10 figure 3: a22...