Vincotech A1035-H User Manual Download Page 26 | Manualshive

Page: 26 / 37

background image

8.2.2 Switching External Antenna Supply

This schematic is a part of the EVA1035-H (Evaluation Kit) schematics. It shows
how the antenna supply voltage can be switched on and off by RFPWUP.

Figure 14: Switching external antenna supply using RFPWUP

8.2.3 Hints

Unused antenna inputs should be terminated with 50

Ω

±

20%. Do not feed the an-

tenna supply voltage into terminated antenna inputs.

V1.5 – Dec-09

User’s Manual

Page 26 of 37

«
...
24
25
26
27
28
...
»

Summary of Contents for A1035-H

Page 1: ...GPS Receiver A1035 H A Description of Vincotech s GPS Receiver Smart Antenna Module A1035 H User s Manual Version 1 5 Hardware Revision 01...

Page 2: ...cted soldering profile extended temperature range specifica tion with slightly decreased performance below 30 C corrected decreased current draw figures added chapter on antenna supply switch added hi...

Page 3: ...HE EXPRESS WRITTEN APPROVAL OF VINCOTECH THIS DOCUMENT MAY PROVIDE LINKS TO OTHER WORLD WIDE WEB SITES OR RESOURCES BECAUSE VINCOTECH HAS NO CONTROL OVER SUCH SITES AND RESOURCES VINCOTECH SHALL NOT B...

Page 4: ...Pin out Information 17 5 1 Layout A1035 H 17 5 2 Description A1035 H Signals 18 5 3 General Comments 19 6 Electrical Characteristics 20 6 1 Operating Conditions 20 6 2 Absolute Maximum Ratings 20 6 3...

Page 5: ...30 10 5 Reset Signal 31 10 5 1 Internal Reset Circuit 31 10 5 2 External Reset Circuit 31 10 6 Battery Back up 32 10 7 Push to Fix Mode 33 10 8 Hibernate Mode 33 10 8 1 Entering Hibernate Mode with ON...

Page 6: ...t antenna support o On module patch antenna o Antenna input for direct connection of external active antenna o RF switch to select between antennas The receiver smart antenna module is available as an...

Page 7: ...ibrated clock of the receiver has not stopped thus it knows precise time to the s level 2 The receiver has estimates of time date position and valid almanac and ephemeris data 3 The receiver has estim...

Page 8: ...tion products A1035 H for the A1035 H module The xxx reflects the current firmware version If no firmware version is noted in an order the latest version will be provided 2 2 Packing The A1035 H GPS m...

Page 9: ...1035 H tape specifications 2 Figure 4 A1035 H tape specifications 3 One complete reel holds 700 A1035 H modules One box holds two reels so a total of 1400 A1035 H modules V1 5 Dec 09 User s Manual Pag...

Page 10: ...V23993 EVA1035 H Evaluation Kit including one module A1035 H Table 3 Additional equipment A detailed description of the EVA1035 H Evaluation Kit can be found in the appro priate manual V1 5 Dec 09 Use...

Page 11: ...n requires toggling of the ON_OFF pin and continued supply of Vcc With the second version a shutdown command is required then after a further delay Vcc can be switched off completely In both cases the...

Page 12: ...h diode NSR0310 Tx Rx 3 3V GND Shown from top without lid pads shown for better understanding A1035 H GSC3f LPx serial Figure 6 Minimum configuration A1035 H with Vbak Remarks Use separate ground plan...

Page 13: ...MAX3232 Tx Rx GND 1 2 3 4 5 6 7 8 9 C1 0 1 F C2 0 1 F C3 0 1 F C4 0 1 F C5 0 1 F RS232 Level Shifter RS232 Out DB9 female 3 3V Vcc GND T1O R1I R1O T1I T2I R2O C1 V C1 C2 C2 V T2O R2I MAX3232 Tx Rx Fig...

Page 14: ...An active antenna should have a gain 20 dB and a noise figure 1 5 dB which applies to more than 95 of the active antennas avail able in the market 3 3 Serial Port Settings The default configuration wi...

Page 15: ...62 30 6 35 25 5 08 20 3 81 15 2 54 10 1 27 05 16 51 0 65 30 48 1 20 29 845 1 175 12 70 50 11 43 45 10 16 40 8 89 35 7 62 30 6 35 25 5 08 20 3 81 15 2 54 10 1 27 05 0 00 00 0 00 00 29 845 1 175 16 52...

Page 16: ...15 3 81 15 3 81 15 3 81 15 16 51 0 65 30 48 1 2 1 27 05 29 845 1 175 13 97 55 1 27 05 2 54 10 2 54 10 1 27 05 1 0 x 0 8 1 27 x 1 27 3 81 15 3 81 15 3 81 15 Solder pad size outer pads 1 0 x 0 8 Solder...

Page 17: ...5 Pin out Information 5 1 Layout A1035 H Figure 10 Pin out information bottom view A1035 H V1 5 Dec 09 User s Manual Page 17 of 37...

Page 18: ...Mechanical fixture only 11 DNC Do not connect to a signal Mechanical fixture only 12 ANT_SW Input Antenna switch LOW or open internal antenna HIGH external antenna 13 GPIO 0 Output Antenna supply stat...

Page 19: ...the module Standard configuration of serial port standard GPS software Serial 0 NMEA 4800 baud 8 data bits no parity 1 stop bit no flow control External antenna Antenna connected to Antenna Pin Use g...

Page 20: ...off 6 2 Absolute Maximum Ratings Symbol Parameter Min Max Unit Vcc Power supply 0 3 3 6 V Vin Voltage to any pin 0 3 3 6 V Iov Input current on any pin 10 10 mA Itdv Absolute sum of all input current...

Page 21: ...TX0 RFPWUP nWAKEUP GPIO 0 Voh 2 6 Vcc V Vol 0 2 V RX1 RX0 Vih 2 0 Vcc V Vil 0 8 V nRST for safe reset 0 2 V ON_OFF Vih 0 84 1 5 V Vil 0 3 0 36 V BOOTSEL Vih 2 3 Vcc V ANT_SW Vih 2 0 V Vil 0 2 V Table...

Page 22: ...e final footprint has to be evaluated and qualified by the manufacturer according to the specific processes 7 2 Recommended Profile for Reflow Soldering Typical values for reflow soldering of the modu...

Page 23: ...ent soldering systems and types of solder and depend on additional factors like density and types of components on board the values above should be considered as a starting point for further optimi za...

Page 24: ...plane of the PCB the ground plane is on a lower PCB layer by vias as demonstrated in the drawing Figure 12 Antenna connector strip line A1035 H In order to achieve the impedance of 50 the width of th...

Page 25: ...apply to the majority of active antennas that can be found in the market The quality and suitability of the GPS antenna chosen is of paramount impor tance to the overall sensitivity of the GPS system...

Page 26: ...t shows how the antenna supply voltage can be switched on and off by RFPWUP Figure 14 Switching external antenna supply using RFPWUP 8 2 3 Hints Unused antenna inputs should be terminated with 50 20 D...

Page 27: ...22 A113 B Level 3 Basic qualification tests MSL Classification according to J STD 020C MSL3 245 C MSL Rework Compatibility according to J STD 020C Temperature Cycling 40 C 85 C Temperature Humidity Bi...

Page 28: ...sult in the following ANTSTAT output Logic low when Iant 9mA Logic high when 9mA Iant 16mA Logic low when Iant 16mA 10 2 1 External Antenna Sensor The following circuit is a proposal on how you can fe...

Page 29: ...apply We strongly recommend simulating and testing the GPS receiver integrated in your product design before implementing the finalized product in the appropriate market ap plication In any case it i...

Page 30: ...rent date and time is transmitted in NMEA sentences UTC an exact and accurate timing signal is pro vided via the 1PPS pin of the A1035 H GPS receiver Under good signal conditions the 1PPS signal comes...

Page 31: ...riate threshold and delay Additionally it ad dresses the brown out protection issue Usually there is no need to deal with the reset input externally therefore the general advice is to leave this pin o...

Page 32: ...ercap While the Supercap is charged through the module during normal operation the battery primary cell is decoupled thru a diode Figure 18 Application note Module back up An alternative to this solut...

Page 33: ...firmware support for ON_OFF has been included hence a rising pulse on the ON_OFF pin will put the A1084 GPS receiver into hi bernate state if it is on and wake it up if it is in sleep state During sl...

Page 34: ...an extension of the serial port 0 therefore sending NMEA sentences and accepting commands At the same time it provides power to the module Accompanied by an antenna it offers a ready to go set For the...

Page 35: ...008 Unterhaching Munich Germany Tel 49 89 8780 67 0 Fax 49 89 8780 67 398 gps vincotech com www vincotech com gps 12 2 Related Documents GPS Firmware GSC3 Vincotech GPS Evaluation Kit EVA1035 H Vincot...

Page 36: ...nical outline solder side A1035 H 16 Figure 10 Pin out information bottom view A1035 H 17 Figure 11 Soldering footprint proposal A1035 H 22 Figure 12 Antenna connector strip line A1035 H 24 Figure 13...

Page 37: ...d weight 7 Table 3 Additional equipment 10 Table 4 Pin description A1035 H 18 Table 5 A1035 H electrical characteristics 20 Table 6 Absolute maximum ratings 20 Table 7 DC electrical characteristics 21...

Reviews:

No comments

Related manuals for A1035-H

Brand: Lathem Pages: 16

Brand: RC Electronics Pages: 67

Vertex Plus Survey

Brand: Vectronic Aerospace Pages: 24

Brand: Ubisense Pages: 7

Brand: Teltonika Pages: 20

Brand: TAKARA Pages: 169

RoadMate Pro 5190T

Brand: Magellan Pages: 65

Brand: Navico Pages: 80

eTrex Venture - Hiking GPS Receiver

Brand: Garmin Pages: 2

Brand: Seiwa Pages: 5

Brand: Raytheon Pages: 10

Brand: BITREK Pages: 23

Brand: Garmin Pages: 14

GlobalMap 7000C

Brand: Lowrance Pages: 128

Brand: Radio Terminal Pages: 15

Earthmate GPS PN-20

Brand: DeLorme Pages: 98

StarFinder Lite

Brand: Laipac Pages: 43

Brand: PawTrax Pages: 16

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands