May 2018 FOCUS TELECOM SyncSmart SEMINAR 30 MAY 2018 CSAC & MAC update May 2018 FOCUS TELECOM SyncSmart SEMINAR 30 MAY 2018

The Chip Scale Atomic Clock (CSAC) The Microsemi SA.45s Chip Scale Atomic Clock brings the accuracy and stability of an atomic clock to portable applications Key Specifications: <120 mW Power Consumption <17 cc in Volume ±5.0E-10 Tempco <9.0E-10 month aging rate, typical Operating Range: -10 to +70 deg C 180s warm-up time 1PPS disciplining Low acceleration sensitivity

CSAC Update: RoHS 6/6 compliant New CSAC full RoHS 6/6 version Available since May 1 from the price list Lead time 8 weeks for small sample quantities New part numbers: 090-03240-001 10MHz 090-03240-003 16.384MHz No other changes to the CSAC specs or performance or price aside from Phase Noise relaxation for 16.384MHz version (at 100Hz) Continue to manufacture and sell standard non-RoHS CSAC Targeted at customers in America, APAC and non-EU countries in volume Continue to deliver very good reliability and performance Strong demand in Oil/gas geophysical survey and Defense markets Plan to converge both CSAC parts on a common platform in future Till such time, will carry two sets of CSAC parts in price list Marketing collaterals Datasheets, White Papers, User Guide

Space CSAC New Identical performance to CSAC TCXO replaced and electronics radiation lot screened Radiation Tolerance: 20Krad The Space CSAC design has been qualified: Total Ionizing Dose and SEE to simulate Low Earth Orbit ( LEO) Shock and Vibration Steady State Life Thermal Vacuum Radiation lot acceptance testing for commercial device susceptibility EAR-99 component ( commercial – no restrictions) Initial units flying on space missions First customer contract received for government program “New Space” type of product that leverage commercial state of the Art technology for missions

Low Noise CSAC New CSAC has relatively modest Phase Noise and short term stability due to the TCXO used as the Local Oscillator LNCSAC uses a low power OCXO within the control loop to significantly improve RF output performance Total Power consumption of less than 300 mW Footprint is 51 mm x 51 mm Functionality equivalent to CSAC   CSAC -10 MHz LNCSAC - 10 MHz Power < 120 mW <295 mW Temperature Stability -10 to 70 °C ± 5 x 10-10 Allan Deviation @ 1 sec. @ 10 sec. < 3 x 10-10 < 1 x 10-10 < 2 x 10-11 < 5 x 10-11 Phase Noise @ 1 Hz @ 10 Hz @ 100 Hz @ 1 kHz @ 10 kHz @ 100 kHz - 50 dBc/Hz - 70 dBc/Hz - 113 dBc/Hz - 128 dBc/Hz - 135 dBc/Hz - 140 dBc/Hz - 85 dBc/Hz - 120 dBc/Hz - 145 dBc/Hz - 150 dBc/Hz - 155 dBc/Hz

CSAC-B release planned mid 2019 Increase of Temperature Range from -40 to 80ºC (from current -10 to +70 deg C) Storage Temperature of -50 to 105ºC Prototypes delivered to Test Customers Engineering Qualification Lot in Process Further process optimization and higher heater power capacity will extend lifetime above 10 years. Improvement anticipated for: Warm-up time Phase Noise Allan Deviation Drift Temperature Stability Same form, fit and function as current CSAC

The Miniature Atomic Clock (MAC) The Microsemi SA.3Xm Miniature Atomic Clock (MAC) Brings Rubidium Atomic Clock performance in an OCXO sized package Key Specifications: <1.0E-10 Temperature Stability (Tempco) <1.0E-10 month aging rate 5 W Power Consumption 47 cc in Volume Temperature Range: -10 to +75C Key Applications: MAC is the Rb of choice for Microsemi FTD Sync products MAC is deployed as holdover Rb for communications infrastructure

MAC Rb Applications Market Precision Frequency Reference Hold-over Cellular Infrastructure X Wired Communications Mission Critical Defense Infrastructure Aerospace Test & Measurement Medical & Scientific

MAC Rb versus Traditional Lamp-Rb oscillator Product  MICROSEMI MAC Rb (SA.35m) Lamp base Rb Size (mm) Volume (cc) 51 x 51 x 18 47 cc 77 x 77 x 25.4 151 cc Monthly Aging ±1E-10 5E-11 TempCo (Temp Range) <1E-10 (-10⁰C to 75⁰C) ±3E-10 (-40⁰C to 70⁰C) Power @25°C (@ Warm-up) 5 W (14 W) 8.25 W (18 W) 1PPS disciplining no yes Phase Noise @ 1Hz 10 Hz 100 Hz 1 kHz 10 kHz <-70 dBc/Hz <-87 dBc/Hz <-114 dBc/Hz <-130 dBc/Hz <-140 dBc/Hz N/S <-118 dBc/Hz <-145 dBc/Hz <-155 dBc/Hz <-159 dBc/Hz ADEV τ = 1s τ = 10s τ = 100s <3E-11 <1.6E-11 <8E-12 N/A <5E-12 Warm-up Time 15 minutes (Typical) 4 minutes Operating Range -10⁰C to 75⁰C -40⁰C to 74⁰C Key competitive attributes for MAC: SWaP compared to traditional Rb MTBF and reliability Proven performance and installed base

MAC Rb for Holdover (time error) Tempco and Aging are paramount in achieving the best holdover performance MAC-SA.35m model Holdover, published in White Paper <1.5us time error over 1 day, Temperature varies -10 to +75C. Three SA35 samples shown.

Time error of various oscillators Long term predicted performance (24 months) is shown below for various oscillators (static temperature environment) MAC accumulates ~ 0.03s/yr of time error 5071A: Cesium Primary Frquency Standatrd, no frequency ageing (primary), very small time drift (few ns/ day)

Next Generation MAC – SA5X release planned mid 2019 The Microsemi SA5X Miniature Atomic Clock (MAC) brings improved atomic clock performance in the legacy OCXO sized package Key Projected SA5X Specifications: <5.0E-11 Tempco (Current MAC SA3X: 1E-10) <5.0E-11 month aging rate (SA3X: 1E-10) Better Aging and Tempco improve holdover performance 7 W Power Consumption (SA3X: 5W) Higher power improves cold temperature operation 47 cc in Volume (No change) Temperature Range: -40 to +75C (SA3X: -10 to +75C) 1PPS in/out (SA3X: N/A) 1PPS functionality allows easier design options Drop-In compatibility with current MAC SA3Xm (same pin-out, dimensions)

CSAC and Rb products Summary LN-CSAC CSAC (SA.45s) MAC (SA.35m) XPRO Size (mm) Volume (cc) 51 x 51 x 18 47 cc 40.6 x 35.3 x 11.4 17 cc 38 x 127 x 94 455 cc Monthly Aging <9E-10 ±1E-10 ±1E-11 TempCo (Temp Range) ±5E-10 (-10⁰C to 70⁰C) <1E-10 (-10⁰C to 75⁰C) <6E-10 (-25⁰C to 70⁰C) Power @25°C (@ Warm-up) 295 mW (775 mW) 120 mW (140 mW) 5 W (14 W) 14.4 W (38 W) Phase Noise @ 1Hz 10 Hz 100 Hz 1 kHz 10 kHz >100 kHz <-85 dBc/Hz <-120 dBc/Hz <-140 dBc/Hz <-145 dBc/Hz <-150 dBc/Hz <-155 dBc/Hz <-50 dBc/Hz <-70 dBc/Hz <-113 dBc/Hz <-128 dBc/Hz <-135 dBc/Hz N/S <-87 dBc/Hz <-114 dBc/Hz <-130 dBc/Hz <-80 dBc/Hz <-90 dBc/Hz ADEV τ = 1s τ = 10s τ = 100s <3E-11 <5E-11 <3E-10 <1.6E-11 <8E-12 <1E-11 <3.2E-12 <1E-12 Warm-up Time 4 minutes 180 seconds 15 minutes 6 minutes Operating Range -10⁰C to 70⁰C -10⁰C to 75⁰C -25⁰C to 70⁰C

Thank You! jp.devos@microsemi.com