2111 comprehensive drive aurora, illinois 60505 phone: 630- 851- 4722 fax: 630- 851- 5040 www.conwin.com bulletin sg169 page 1 of 2 revision p02 date 30 sept 2011 general instructions 1) insert the unit into the eval board lif sockets ? pin 1 of the unit will be placed in the topmost position of lif receptacle j12. ? pin 1 is indicated on the evaluation board with a large silkscreen 1. ? press the unit down frmly- there should be no metal pins exposed. 2) dip switch manual control using sw1 ? verify that all the dip switches are turned on (rightmost position). ? off position applies a logic low to the unit, on position applies a logic high. switch label function sync1 controls dut pin 19 sync1 control sync2 controls dut pin 20 sync2 control disable controls dut pin 21 (/disable) boot select controls dut pin 8 (/bootsel) - only used for wi125 software updates/revisions reset controls dut pin 10 (/reset) 3) connect the bncs (center positive) ? do not apply voltages higher than indicated or the dut and/or test board could be damaged. ? connect 3.3v to j1 to power the test board. ? connect 3.3v to both j2 and j3 to power the fts125. use separate supplies for j2 dut vcc1 and j3 dut vcc2 otherwise phase noise performance will be degraded. ? connect 3-12v to j4 to power an active antenna through the fts125's mcx antenna connector. if a different antenna is used other than that supplied with the fts125 eval board, consult that antenna's documentation for the required voltage. fts/fr125 eval board quick start guide q u i c k s t a r t g u i d e available at digi-key www.digikey.com
2111 comprehensive drive aurora, illinois 60505 phone: 630- 851- 4722 fax: 630- 851- 5040 www.conwin.com specifcations subject to change without notice. all dimensions in inches. ? copyright 2011 the connor-winfeld corporation us headquarters: 630-851-4722 european headquarters: +353-61-472221 general instructions continued designator/label input / voltage / function output logic type j1: 3.3v input 3.3v +/- 5% eval board power j6: 10mhz ext input lvcmos/lvttl external 10mhz reference signal to dut pin 9 j5: 1pps ext input lvcmos/lvttl external 1pps reference signal to dut pin 12 j4: 3-12v ant input between 3-12v antenna supply voltage for dut pin 14 j2: dut vcc1 input 3.3v +/- 5% supply voltage for dut pin 16 j3: dut vcc2 input 3.3v +/- 5% supply voltage for dut pin 17 j16: 1pps out output lvcmos 1pps signal from dut pin 26 or probe jack j19 j15: 10mhz cmos out output lvcmos 10mhz cmos signal from dut pin 28 or probe jack j18 j14: 10mhz sine out output sine 10mhz sine signal from dut pin 32 or probe jack j17 4) connect the female db9 connector p3 to a computer serial port (optional). ? used to monitor nmea 0183 data stream. ? ns3kview software is recommended for use and can be provided per request. ? baud rate: 38400. ? refer to the wi125 gps receiver user manual for more information on nmea and the proprietary messages and commands. 5) connect a full sky view gps antenna to the duts female mcx connector. 6) power the unit on. 7) led function ? antenna fault status (d7) red led turns on if a fault condition is indicated on dut pin 25. an antenna fault condition is defned as an overcurrent on dut pin 14 (antenna supply voltage). this fault status is self-clearing once the fault condition goes away. ? holdover status (d6) amber led turns on if the unit is in automatic or forced holdover as indicated by dut pin 23 holdover status. ? lock status (d5) green led turns on if the unit is tightly locked to the selected input as indicated by dut pin 24 lock status. available at digi-key www.digikey.com
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