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© 2014 Microsemi Corporation. COMPANY PROPRIETARY 1 Power Matters. TM GPSDO and Ruggedized Timing Products Paul R. Gerry Senior Product Manager, Clocks.

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Presentation on theme: "© 2014 Microsemi Corporation. COMPANY PROPRIETARY 1 Power Matters. TM GPSDO and Ruggedized Timing Products Paul R. Gerry Senior Product Manager, Clocks."— Presentation transcript:

1 © 2014 Microsemi Corporation. COMPANY PROPRIETARY 1 Power Matters. TM GPSDO and Ruggedized Timing Products Paul R. Gerry Senior Product Manager, Clocks BU

2 Power Matters. TM 2 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Agenda  GPSDO Background Information  RCM Ultra Low Noise 10MHZ/100MHz Reference  OCXO Based GPSDOs  CSAC Based GPSDOs  Low Cost LTE-Lite GPSDOs

3 Power Matters. TM 3 © 2014 Microsemi Corporation. COMPANY PROPRIETARY What Does a GPSDO Do?  GPS signals carry the Colorado NIST UTC master time- signal to the user. We decode this time signal, and generate a local version of it by controlling a local oscillator:

4 Power Matters. TM 4 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Why Use A GPSDO?  Primary frequency references like Cesium, Rubidium have drift Temperature, g-sensitivity, C-field error, aging, relativistic effects  Free Running Oscillators: Synchronized Frequency-Locked-Loop (poor phase coherence)  GPS Locked Oscillators: Synchronized Phase-Locked-Loop (phase coherence to UTC) Better than 5E-013/24Hrs possible with Quartz

5 Power Matters. TM 5 © 2014 Microsemi Corporation. COMPANY PROPRIETARY In a GPSDO, the GPS Signal Provides…..  1PPS (pulse per second) within ~ ±25ns typ. of UTC Independent of position  WAAS/EGNOS/MSAS error correction  PVT vector  Date/Time, down to the nanosecond level  Health information of Satellites  Major drawback: Large sawtooth type jitter on the 1PPS Outages are frequent, 1PPS missing occasionally Foliage, Shading, Multipath induced errors

6 Power Matters. TM 6 © 2014 Microsemi Corporation. COMPANY PROPRIETARY RCM Ultra Low Noise 100MHz, 10MHz, 1 PPS Reference Module

7 Power Matters. TM 7 © 2014 Microsemi Corporation. COMPANY PROPRIETARY RCM Reference  Holdover <+4us over 24-hrs typ.  Phase Noise of only -100dBc/Hz at 10Hz offset from the 100MHz carrier  Phase noise floor of -172dBc/Hz  Dual Frequency One Ultra-stable 10MHz CMOS output, Two 100 MHz sinewave outputs  Allan Deviation of 1 sec  PPS signals have 2.5ns resolution  Supports external 10MHz or 1PPS signals reference inputs tight phase-lock to internal oscillators  Operating temperature range -40°C to +85°C

8 Power Matters. TM 8 © 2014 Microsemi Corporation. COMPANY PROPRIETARY RCM Reference  Applications Radar Local oscillator for applications requiring ultra-low phase noise Synchronized Radio applications Phase-noise-filter applications for Rubidium or Cesium references

9 Power Matters. TM 9 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Ruggedized SSM >SCM  Application: 24/7 search for any type of Communication to identify its Direction & Location  Key req: Ultra Extreme Sensitive & Accurate timing of the remote sensors to the C&C Center  Multiple remote Sensor units (1-N) which must be within 2 nsec diff from the Master Sync server  Ultra Low Phase Noise of: – 170dBc  Embedded VPX Sensor module  Rugged / MIL- STD

10 Power Matters. TM 10 © 2014 Microsemi Corporation. COMPANY PROPRIETARY The “Standard / Commercial” offering Remote Sync. & 100Mhz Ref. Clk. # 1 10MHz #2 10MHz #N 10MHz GPS Signal Distribution #N 100MHz Sensor Sync. Embedded cards vs. BC635’s #3 10MHz SSM Mhz Ref. board XLi

11 Power Matters. TM 11 © 2014 Microsemi Corporation. COMPANY PROPRIETARY RCM - 100MHz Phase Noise : SSM2650 option dBc is nice …buy not meeting the spec. ! RCM phase noise req.: 1 Hz<= -70 dBc 4 Hz<= -98 dBc 10 Hz<= -103 dBc 100 Hz<= -118 dBc 1 KHz<= -146 dBc 10 KHz<= -158 dBc 100 KHz<= -160 dBc 1 MHz<= -163 dBc 10 MHz<= -170 dBc 100 MHz<= -170 dBc

12 Power Matters. TM 12 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Microsemi & Focus’s - New Solution  New RCM design: Dual isolated 100MHz Ultra-Low Phase-Noise floor of -172dBc/Hz with +20.5dBm power. Allows external 10MHz or 1PPS signals to tightly phase-lock  ADEV of 2E-012 with low-g 100MHz osc. - phase-locked to the 10MHz DOCXO disciplined & provides 1PPS signals with 2.5ns resolution  Allowing 1PPS phase-locked to the 100MHz output even in the absence or failure of the external 1PPS or 10MHz references - for stand alone operation This is on the Physics limit !!

13 Power Matters. TM 13 © 2014 Microsemi Corporation. COMPANY PROPRIETARY RCM - Rugged VPX 1.1” Conduction Cooled Embedded Module  This application required the unit to be ruggedized to 167 & 810 MIL STD Embedded VPX module in Conduction cooled ATR Chassis Rugged RCM VPX CC Module product !  Customized packaging design for of the new RCM 100Mhz board Packaged as Rugged VPX module

14 Power Matters. TM 14 © 2014 Microsemi Corporation. COMPANY PROPRIETARY RCM Ultra Low Noise Reference Module  2.0 X 4.0 X 1.0 In, ruggedized  1 PPS input to capture resolution of ±2.5 ns  Dual Frequency outputs 1 10 MHz 5V CMOS output MHz sinewave outputs  Phase Noise (172dBc/Hz floor) 10MHz 100MHz 1Hz <-90dBc/Hz <-70dBc/Hz 10Hz <-125dBc/Hz <-98dBc/Hz 100Hz <-145dBc/Hz <-128dBc/Hz 1KHz <-150dBc/Hz <-153dBc/Hz 10kHz <-150dBc/Hz <-160dBc/Hz 100kHz <-150dBc/Hz <-165dBc/Hz  Ultra-low-g sensitivity (less than 0.3ppb per g per axis)  Operating Temperature range -40°C to +85°C

15 Power Matters. TM 15 © 2014 Microsemi Corporation. COMPANY PROPRIETARY OCXO Based GPSDOs

16 Power Matters. TM 16 © 2014 Microsemi Corporation. COMPANY PROPRIETARY GPS Mhz OCXO-based GPSDO  Small 1.0” x 2.5” x 0.5” package  Holdover of ±11 µs over a 3-hr.  Compatible with GPS, WAAS, EGNOS, MSAS; Galileo-ready  1 PPS Accuracy of ±50 ns to UTC RMS (1-sigma), GPS-locked.  Output – 1 10 MHz output sinewave  Power consumption <1.4W typical  Phase Noise 1Hz -80dBc/Hz 10Hz -110dBc/Hz 100Hz -135dBc/Hz 1kHz -145dBc/Hz 10kHz <-145dBc/Hz  Operating Temperature range of 0° C to +60° C

17 Power Matters. TM 17 © 2014 Microsemi Corporation. COMPANY PROPRIETARY GPS-2500/2550 DOCXO-based GPSDO  Small 1.5” x 3” x 0.8” package.  Holdover ±7 µs over 24-hr.  Compatible with GPS, WAAS, EGNOS, MSAS; Galileo-ready.  1 PPS Accuracy of ±50 ns to UTC RMS (1-sigma), GPS-locked.  Output MHz – 2 LVDS and 3 sinewave.  Phase noise 1Hz -80dBc/Hz 10Hz -110dBc/Hz 100Hz -135dBc/Hz 1kHz -145dBc/Hz 10kHz <-145dBc/Hz  Operating Temperature range of 0°C to +75°C; extended range of 25°C to +75°C available.

18 Power Matters. TM 18 © 2014 Microsemi Corporation. COMPANY PROPRIETARY GPS-2600/2650 DOCXO-based GPSDO  1.5” x 4” x 0.8” package.  Holdover of ±7 µs over a 24-hr.  Compatible with GPS, WAAS, EGNOS, MSAS; Galileo-ready.  1 PPS Accuracy of ±30 ns to UTC RMS (1-sigma), GPS-locked.  Output 7 100Mhz - 2 sine, 4 LVDS, 1 CMOS; 2 10Mhz - 1 sine, 1 LVDS  Phase noise 1Hz -60dBc/Hz 10Hz -95dBc/Hz 100Hz -118dBc/Hz 1kHz -140dBc/Hz 10kHz -155dBc/Hz 100kHz -160dBz/Hz  Operating Temperature range of 0° C to +75° C; 25° C to +75° C available.

19 Power Matters. TM 19 © 2014 Microsemi Corporation. COMPANY PROPRIETARY CSAC Based OCXOs

20 Power Matters. TM 20 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Benefits of a GPSDO module vs. a CSAC Component  CSAC total errors: ±2ppb (temp/age/gauss/cal etc) GPS: << 0.2ppb within <20min  Module is plug-and-play, CSAC requires design-in (system sale vs. component sale)  Phase Noise improvement: up to 13dB, >80% of spurs removed  Wider range of power supplies -- GPSDO can use vehicle power supply (8V to 36V) or USB; CSAC requires +3.3V.  Handling of common GPS anomalies and optimization for mission profile (Airborne, Vehicle, Manpack)

21 Power Matters. TM 21 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Additional Features -- Software Interface  Well known control interfaces (NMEA, SCPI, GPSCon, NTP etc)  Support for NMEA-0813 ver. 2.3 (Google Earth, etc)  USB Plug and Play, LCD driver built-in  Easy-to-use English commands, examples:  Help?  Syst:status?  GPS?, CSAC?

22 Power Matters. TM 22 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Confidential © Copyright Symmetricom Proprietary GPSDO with CSAC Compared GPSDO with OCXO Holdover?  CSAC Holdover after 20 minutes with GPS: typically better than 2us per day.  OCXO Holdover after 20 minutes with GPS: <13us over 4 hours (state of the art)  OCXO Holdover after 5 days with GPS: typically 1us to 2us per day. (SC-cut)

23 Power Matters. TM 23 © 2014 Microsemi Corporation. COMPANY PROPRIETARY GPSDO Benefits for Targeted Markets  Manpack Systems: Low power extends battery life. Very fast warm-up (legacy products: 15+ min) Very low-g while on move.  Airborne Systems: Low phase noise under vibration Wider temperature range than OCXO Low SWaP and low profile  Stationary Systems: Position and Hold mode Holdover for up to 1 week Long UPS life, independent of temperature

24 Power Matters. TM 24 © 2014 Microsemi Corporation. COMPANY PROPRIETARY GPS 2700/2750  2” X 2.5” X 0.7” package  Holdover of ±1 µs over 24-hrs typ.  Compatible with GPS, WAAS, EGNOS, MSAS  1 PPS Accuracy of ±15 ns to UTC RMS (1-sigma), GPS-locked.  Outputs MHz Sinewave; 1 5MHz CMOS 5V  Power <1.5W, <1W CMOS option  Phase Noise 10Hz -75dBc/Hz 100Hz -115dBc/Hz 1KHz -128dBc/Hz 10kHz -134dBc/Hz 100kHz -140dBc/Hz  Operating Temperature range of -10ºC to +70ºC

25 Power Matters. TM 25 © 2014 Microsemi Corporation. COMPANY PROPRIETARY HD-CSAC  2” X 2.5” X 0.7” package  Holdover of ±1 µs over 24-hrs typ.  Compatible with GPS, WAAS, EGNOS, MSAS  1 PPS Accuracy of ±15 ns to UTC RMS (1-sigma), GPS-locked.  Outputs MHz LVDS and 1 10MHz CMOS 5V  Power <1.25W  Phase Noise 10Hz -75dBc/Hz 100Hz -115dBc/Hz 1KHz -128dBc/Hz 10kHz -134dBc/Hz 100kHz -140dBc/Hz  Operating Temperature range of -10ºC to +70ºC.

26 Power Matters. TM 26 © 2014 Microsemi Corporation. COMPANY PROPRIETARY LP-CSAC  2” X 2.5” X 0.7” package  Holdover of ±1 µs over 24-hrs typ.  Compatible with GPS, WAAS, EGNOS, MSAS  1 PPS Accuracy of ±15 ns to UTC RMS (1-sigma), GPS-locked.  Outputs MHz LVDS and 1 10MHz CMOS 3.3V  Power - <0.55 W  Phase noise 10Hz -75dBc/Hz 100Hz -115dBc/Hz 1KHz -128dBc/Hz 10kHz -134dBc/Hz 100kHz -140dBc/Hz  Operating Temperature range of 10° C to +70° C

27 Power Matters. TM 27 © 2014 Microsemi Corporation. COMPANY PROPRIETARY LTE-Lite TCXO Based GPSDOs Low-cost Small-Cell Frequency and Timing Reference

28 Power Matters. TM 28 © 2014 Microsemi Corporation. COMPANY PROPRIETARY LTE-Lite 19.2 MHz  0.7” x 1.18” x 0.09” package.  <±50us over 3 Hour Period (25°C)  Compatible with, QZSS, SBAS WAAS, EGNOS, MSAS  Outputs MHz CMOS; 1 PLL synthesized configurable 76.8/38.4/25.6/15.36/12.8/9.6/4.8 MHz  Phase Noise (noise floor <155dBc/Hz) 1Hz -65dBc/Hz 10Hz -92dBc/Hz 100Hz -116dBc/Hz 1kHz -136dBc/Hz 10kHz -148dBc/Hz 100KHz <-155dBc/Hz  Operating Temperature -10°C to +70°C, -40°C to +85°C optional

29 Power Matters. TM 29 © 2014 Microsemi Corporation. COMPANY PROPRIETARY LTE-Lite 20 MHz  0.7” x 1.18” x 0.09” package.  <±50us over 3 Hour Period (25°C)  Compatible with, QZSS, SBAS WAAS, EGNOS, MSAS  Outputs MHz CMOS; 1 PLL synthesized configurable 80/40/26.666/16/13.333/10/5 MHz  Phase Noise (noise floor <155dBc/Hz) 1Hz -65dBc/Hz 10Hz -92dBc/Hz 100Hz -116dBc/Hz 1kHz -136dBc/Hz 10kHz -148dBc/Hz 100KHz <-155dBc/Hz  Operating Temperature -10°C to +70°C, -40°C to +85°C optional

30 Power Matters. TM 30 © 2014 Microsemi Corporation. COMPANY PROPRIETARY  The GPSDO demo kit allows you to easily demonstrate the usefulness of a board-level GPSDO to your customer base. TCXO-based to hold down costs, so not “state of the art” holdover performance! USB interface for demo convenience.  Demo Kit Contents: Board with USB interface & cable Antenna with cable Documentation: CDROM, Read-me sheet The GPSDO Demo Kit

31 Power Matters. TM 31 © 2014 Microsemi Corporation. COMPANY PROPRIETARY GPSDO Comparison ProductGPS-1000GPS-2000GPS-2500 GPS-2550 GPS-2600 GPS-2650 GPS-2700 GPS-2750 CSAC-LP Technology OCXO CSAC Size 1.0 x 2.5 x 0.5 in1.5 x 3 x 0.65 in1.5 x 3 x 0.8 in1.5 x 4 x 0.8 in2.5 x 3 x 0.7 in2.0 X 2.5 X 0.7 in Temp range 0°C to 60°C0°C to 75°C-25°C to 75°C0°C to 75°C-10°C to 70°C-10ºC to 70ºC Power 25°C <1.4W<3.2W<4W <1.4W<0.55W ADEV 1s 1.0E-11 with GPS Lock <6.0E-11 with GPS Lock <1.0E-11 with GPS Lock <1.0E-11 with GPS Lock <1.0E-10 with GPS Lock <1E-10 with GPS Lock Phase Noise 10Hz -110dBc/Hz-120dBc/Hz -95dBc/Hz-75dBc/Hz Holdover <+ 11 uS 3 hours <+ 60 uS 24 hours <+ 7 uS 24 hours <+7 uS 24 hours <+ 2 uS 24 hour <+ 2 uS 24 hour Outputs 1 PPS 10 MHz 1 PPS 2 & 10 MHz 1 GHZ 1 PPS 10 MHZ 1 PPS 10 MHz 100 MHz 1 PPS 10 MHz 1 PPS 10 MHz GPSL1 C/A 1574 MHz L1 C/A 1574 MHz L1 C/A 1574 MHz L1 C/A 1574 MHz L1 C/A 1574 MHz L1 C/A 1574MHz

32 Power Matters. TM 32 © 2014 Microsemi Corporation. COMPANY PROPRIETARY Ramki Ramakrishnan Director of Marketing, Clocks BU Thank You Paul R. Gerry Senior Product Manager, Clocks BU Steve Fossi VP and General Manager, Clocks BU


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