shenzhen yixie technologylimited
specification
gpsreceiver
yx-3020-b
v1.4
shenzhen yixie technologylimited
floor 2，36building，the third industrial area，zhongkeng road，bantian town，longgang district，shenzhen,china
tel: +86-755-83297057 fax:+86-755-83647721
web: www.szyxec.com
1.introduction
1.1 overview
yx-3020-bis a gps receiver build-in high performances -165dbmgps chipset. yx-3020-bprovides customer high position, velocity and time accuracyperformances as well as high sensitivity and tracking capabilities.customers benefit from the strength of both companies. thanks tothe low power consumption technology, the gps receiver is ideal formany portable applications such as pda, tablet pc, smart phoneetc.
1.2feature
l buildonhighperformancegpssinglechip
l high sensitivity-165dbm
l low power consumption: max 35ma@3.3v
l integratedlnawithlow-gainmodeforactiveantennaoption
l 66channelsinsearchmodeand22channels"all-in-view"tracking
l upto60,000simultaneoussearchwindowsforfastttffandhighuisitions
l averagecoldstarttimeunder29seconds(opensky)
l supportstandardnmea-0183andmtkbinaryprotocol
l patch antenna size:18.4(w)mmx18.4(d)mmx4(h)mm
l rohs compliant (lead-free)
1.3productapplication
l handheldgpsreceiverapplication
l ideal for pda, pocket pc andother consumer devices regcapability
l geographicsurveying
l sports andrecreation
l marinenavigation, fleet management
l automotiveapplication
l carnavigationandtracking
l avl and location-basedservices
l timingapplication
1.4productpicture
2 technicalspecifications
2.1generalcharacteristics
2.1.1general
frequency
l1, 1575.42mhz
c/acode
1.023mhzchip rate
acquisitionchannel
66
trackingchannel
22
2.1.2accuracy
position
2.5mcep
velocity
0.1m/s
2.1.3datum
2.1.4timeto first fix （ttff）
hotstart
<1sec.,average
warmstart
<28sec.,average
coldstart
<29sec.,average
2.1.5sensitivity
trackingsensitivity
-165dbm,typical
acity
-148dbm,typicalforcoldstart
2.1.6dynamiccondition
altitude
18000m(max)
velocity
515m/s(max)
acceleration
4g
jerk
1g/s
2.2electricalcharacteristics
2.2.1dcpower
voltage
+3.3v-5.0vdc
supplycurrent
under30ma@3.3vdctypical
2.2.2serialport
electricalinterface
twofullduplex serial communication
baudrate
4.8k/9.6k（default）/19.2k/38.4
/57.6k/115.2k
navigationupdaterate
1hz
protocolmessage
nmea-0183ver3.01
2.2.3antenna
type
activepatchantenna
centerfrequency
1575.42+/-1.032mhz
polarization
rhcp
impedance
50 ohm
2.3environmentalcharacteristics
operatingrange
-40°c~ +85°c
storagerange
-40°c~ +150°c
relativehumidity
5%~80%
2.4physicalcharacteristics
length
30mm
width
30mm
height
7.5mm
2.5absolute maximumratings
parameter
min
typ
max
unit
powersupplyvoltage
-0.1
3.3
5
v
3 softwareinterface
3.1nmea v3.01protocol
itsoutputsignallevelisttl:9600bps(default),8bitdata,1stopbitandnoparity.
itsupportsthefollowingnmea-0183
messages:gga,gll,gsa,gsv,rmcandvtg.
nmeaoutputmessages: themoduleboardoutputs thefollowingmessagesas shownin table.
table1nmea-0183outputmessages
nmearecord
description
gga
global positoningsystem fixed data
gll
geogrphic position– latitude / longitude
gsa
gnss dop andactive satellites
gsv
gnss satellites inview
rmc
recommendedminimum specific gnss data
vtg
course over groundand ground speed
3.1.1gga-globalpostioning system fixed data
table2containsthevaluesofthefollowingexample:
$gpgga,161229.487,3723.2475,n,12158.3416,w,1,07,1.0,9.0,m,,,,0000*18
table2ggadataformat
name
example
units
description
messageid
$gpgga
gga protocolheader
utcposition
161229.487
hhmmss.sss
latitude
3723.2475
ddmm.mmmm
n/sindicator
n
n=north ors=south
longitude
12158.3416
dddmm.mmmm
e/windicator
w
e=east orw=west
position fixindicator
1
see table2-1
satellitesused
07
range 0 to12
hdop
1.0
horizontaldilution of precision
mslaltitude
9.0
meters
units
m
meters
geoidseparation
meters
units
m
meters
age of diff.corr.
second
null fields whendgps is not used
diff. ref. stationid
0000
checksum
*18
＜cr＞＜lf＞
end of messagetermination
table2-1positionfixindicator
value
description
0
fix not availableor invalid
1
gps sps mode,fixvalid
2
differentialgps,sps mode,fix valid
3
gps pps mode,fixvalid
3.1.2 gll-geographicposition-latitude/longitude
table3containsthevaluesofthefollowingexample:
$gpgll, 3723.2475,n, 12158.3416,w, 161229.487,a*2c
table3 glldataformat
name
example
units
description
message id
$gpgga
gll protocol header
latitude
3723.2475
ddmm.mmmm
n/s indicator
n
n=north or s=south
longitude
12158.3416
dddmm.mmmm
e/w indicator
w
n=north or s=south
utc position
161229.487
hhmmss.ss
status
a
a=data valid or v=data not valid
checksum
*2c
＜cr＞＜lf＞
end of message termination
3.1.3gsa-gnss dopand active satallites
table4containsthevaluesofthefollowingexample:
$gpgsa,a, 3, 07, 02, 26,27,09, 04,15,,,,,, 1.8,1.0,1.5*33
table4 gsadataformat
name
example
units
description
message id
$gpgsa
gsa protocol header
mode 1
a
see table 4-2
mode 2
3
see table 4-1
satellite used
07
sv on channel 1
satellite used
02
sv on channel 2
…
…
satellite used
sv on channel 12
pdop
1.8
position dilution of precision
hdop
1.0
horizontal dilution of precision
vdop
1.5
vertical dilution of precision
checksum
*33
＜cr＞＜lf＞
end of message termination
table4-1mode1
value
description
1
fix not available
2
2d
3
3d
table4-2mode2
value
description
m
manual-forced tooperate in 2d or 3d mode
a
automatic-allowedto automatically switch 2d/3d
3.1.4gsv-gnsssatallites in view
table5containsthevaluesofthefollowingexample:
$gpgsv,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138, 42*71
$gpgsv, 2, 2, 07, 09,23, 313, 42,04, 19,159, 41, 15, 12,041, 42*41
table5 ggadataformat
name
example
units
description
message id
$gpgsv
gsv protocol header
number ofmessages1
2
range 1 to 3
messages number1
1
range 1 to 3
satellites in view
07
satellite id
07
channel 1 ( range 1 to 32 )
elevation
79
degrees
channel 1 ( maximum 90 )
azimuth
048
degrees
channel 1 ( ture,range 0 to 359 )
snr(c/no)
42
dbhz
range 0 to 99,null when not tracking
…
…
satellite id
27
channel 4 ( range 1 to 32 )
azimuth
27
degrees
channel 4 ( maximum 90 )
elevation
138
degrees
channel 4 ( ture,range 0 to 359 )
snr(c/no)
42
dbhz
range 0 to 99,null when not tracking
checksum
*71
＜cr＞＜lf＞
end of message termination
1dependingonthenumberofsatellitestrackedmultiplemessagesofuired.
3.1.5rmc-recommended minimumspecific gnss data
table6containsthevaluesofthefollowingexample:
$gprmc, 161229.487, a, 3723.2475, n, 12158.3416, w, 0.13, 309.62,120598,,*10
table 6 gga dataformat
name
example
units
description
message id
$gprmc
rmc protocol header
utc position
161229.487
hhmmss.sss
status
a
a=data valid or v=data not valid
latitude
3723.2475
ddmm.mmmm
n/s indicator
n
n=north or s=south
longitude
12158.3416
ddmm.mmmm
e/w indicator
w
e=east or w=west
speed over ground
0.13
knots
course over ground
309.62
degrees
ture
date
120598
dbhz
ddmmyy
magnetic varation
e=east or w=west
checksum
*10
＜cr＞＜lf＞
end of message termination
3.1.6 vtg-course over ground andground speed
table7containsthevaluesofthefollowingexample:
$gpvtg, 309.62,t,,m, 0.13,n,0.2,k*6e
table7vtgdataformat
name
example
units
description
message id
$gpvtg
vtg protocol header
course
309.62
degrees
measured heading
reference
t
ture
course
degrees
measured heading
reference
m
magnetic
speed
0.13
knots
measured horizontal speed
units
n
knots
speed
0.2
km/hr
measured horizontal speed
units
k
kilometer per hour
checksum
*6e
＜cr＞＜lf＞
end of message termination
4 hardwareinterface
theyx-3020-bincludes an antenna in a unique style waterproof gadget. we canmanufacture variable connector cable to suit your demands. likeusb, phr(jst), ghr(jst), molex, ps2, rj11, d-sub 9..etc. youprovide me specification, we manufacture the cable andconnector.
definition of pinassignment
pin no.
pinname
i/o
description
remark
1
vcc
p
powersupply
3-5v
2
en
i/o
3
gnd
g
ground
4
txd
o
uartserial data output
5
rxd
i
uart serial datainput
6
v_bat
p
backupvoltage supply
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