FTS125 - Connor

Available at Digi-Key
www.digikey.com
FTS/FR125
Eval Board Quick Start Guide
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
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Revision
Date
SG169
1 of 2
P02
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 firmly- 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
Sync2
Disable
Boot Select
Reset
Controls DUT pin 19 “SYNC1 control”
Controls DUT pin 20 “SYNC2 control”
Controls DUT pin 21 (/Disable)
Controls DUT pin 8 (/Bootsel) - Only used for Wi125 software updates/revisions
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.
General Instructions continued
2111 Comprehensive Drive
Aurora, Illinois 60505
Designator/Label
Input /
Output
J1: “3.3V”
Input
J6: “10MHz Ext”
Input
J5: “1PPS Ext”
Input
J4: “3-12V ANT”
Input
J2: “DUT VCC1”
Input
J3: “DUT VCC2”
Input
J16: “1PPS Out”
Output
or Probe Jack J19
J15: “10MHz CMOS Out” Output
or Probe Jack J18
J14: “10MHz SINE Out” Output
or Probe Jack J17
Voltage /
Logic Type
3.3V +/- 5%
LVCMOS/LVTTL
LVCMOS/LVTTL
Between 3-12V
3.3V +/- 5%
3.3V +/- 5%
LVCMOS
LVCMOS
SINE
Function
Phone: 630- 851- 4722
Fax: 630- 851- 5040
Eval board power
External 10MHz reference signal to DUT Pin 9
External 1PPS reference signal to DUT Pin 12
Antenna supply voltage for DUT Pin 14
Supply voltage for DUT Pin 16
Supply voltage for DUT Pin 17
1PPS signal from DUT Pin 26
10MHz CMOS signal from DUT Pin 28
10MHz SINE signal from DUT Pin 32
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 DUT’s 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 defined 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
Specifications subject to change without notice. All dimensions in inches. © Copyright 2011 The Connor-Winfield Corporation
www.conwin.com
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221