MEMS Timing Solutions for
Aerospace-DefenseEndura? Ruggedized Timing Solutions
? Lower acceleration sensitivity? High shock and vibration survivability
? Better dynamic performance in harsh environments? Higher reliability? Up-screening available
Engineered for the world’s toughest
applications
Endura Timing Solutions for Ruggedized Environments
Super-TCXOs
SiT5146 | SiT5147 | SiT5346 | SiT5347 | SiT5348 | SiT5349? Precision timing | ±100 ppb up to 105°C? Vibration resistant | 0.004 ppb/g typical
? Airflow and thermal shock resistant | 1 ppb/°C
AEROSPACE
Differential Oscillators
SiT9345 | SiT9346 | SiT9347 | SiT3541 | SiT3542 | SiT3342 | SiT3343? Low jitter | 0.2 ps RMS (12 kHz to 20 MHz)
? Precise frequency steering | digital tuning to ±5 ppt
? Small industry-standard packages | as small as 3.2 x 2.5 mm
FIELD COMMUNICATIONS
Super-TCXOs
SiT5346 | SiT5347 | SiT5348 | SiT5349 | SiT5146 | SiT5147? High temperature operation | ±500 ppb up to 105°C? Airflow and thermal shock resistant | 1 ppb/°C? Excellent short term stability | ADEV 1.5e-11 at 10s
PRECISION GNSS TIMING
Single Ended Oscillators
SiT8944 | SiT8945 | SiT2044 | SiT2045 | SiT9045
? Vibration resistant | in small industry-standard packages? Wide operating temperature | -55 to 125°C? Resistant to changing ambient pressure
AVIONICS
Super-TCXOs
SiT5346 | SiT5347 | SiT5348 | SiT5349? Best g-sensitivity | 0.004 ppb/g typical? No activity dips | no micro jumps
? Low Allan deviation | ADEV 1.5e-11 at 10s
SATCOM
Endura Timing Solutions for Ruggedized Environments
Outperforms Quartz
MechanicalShock30,000 g 1500 gConforms to MIL Specifications
Single-ended XODifferential XO/VCXO/DCXOMIL-PRF-55310TestAccelerationSensitivity0.004 ppb/g0.3 ppb/g3.6.40.14.8.18.3.13.6.34.13.6.17.1Shockg-SensitivityFrequency agingg-sensitivity, constant accelerationPhase noise under vibrationFrequency-temperature stability with hysteresisAmbient pressureAllan deviationFrequency-temperature stability with hysteresis and trim effectRetraceModulation frequency responseAcceleration survivabilityFrequency warm upQuality<1 dppm50 dppm3.6.38.33.6.10.23.6.45.23.6.16.5???????n/an/an/an/a???????n/a Reliability(FIT Rate)<1 Failure>30 Failures3.6.10.43.6.153.6.30.73.6.41.1?n/aSiTimeQuartz?n/a??n/a3.6.7Best-in-Class Aging
SiTime SpecQuartz Spec25°CLower Acceleration (g) Sensitivity
Total Gamma Over 3 Axes, SiT5346 Super-TCXO10Frequency Stability (ppm)3.532.521.510.50-0.5-1-1.5-2.5-3-3.5-4Total Gamma (ppt/g)987654321010SiTime is 6x BetterMIL-PRF-55310, Section 4.8.18.3.1ppb/gtypical0.004MAXSiT5346 Super-TCXO Measured/Extrapolated Data21010085°C10 years15 years20 years1 year5 years1k10k1001000Aging Time (Days)Vibration Frequency (Hz)TCXO????? ????????MEMS Timing Solutions for Aerospace & Defense
SiTime Base Part No.Output FrequencyFrequency Stability (ppm)Supply Volt. (V)Supply Current (Typical)Packages (mm x mm)Output LogicFeaturesTCXOs | ±6.25 to ±3200 ppm pull range | 5 ppt resolution frequency control | Better reliability | 0.004 ppb/g acceleration sensitivitySiT5348/491 MHz to 220 MHzSiT5346/47SiT5146/471 MHz to 220 MHz±0.1, ±0.2, ±0.25±0.5, ±1, ±2.52.5, 2.8, 3.0, 3.340 to 45 mA±0.055.0 x 3.2 7.0 x 5.0 9.0 x 7.0 14.0 x 9.0LVCMOS, Clipped SinewaveI2C programmable,±1 ppb/°C slope,0.2 ps/mv PSNR,Field ProgrammableI2C programmable,±1 ppb/°C slope,0.2 ps/mv PSNR, -40 to +105°C,Field Programmable0.21 ps RMS phase jitter,-40 to +105°CDIFFERENTIAL LOW-JITTER OSCILLATORS | Better reliability | 0.2 ps/mV power supply noise rejection (PSNR)SiT9346/471 MHz to 725 MHz±10, ±20, ±25, ±502.5 to 3.376 to 84 mA3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0LVPECL, LVDS, HCSLSINGLE-ENDED OSCILLATORS | Better reliability | Pin-compatible footprintsSiT8944SiT89451 MHz to 110 MHz±20, ±25, ±50115 MHz to 137 MHz1.8, 2.5 to 3.34.9 to 6 mA3.5 to 4.5 mA2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0LVCMOS1.3 ps RMS phase jitter, -55 to +125°C,Field Programmable40 spread options, up to ±2.0%, down to -4.0%,-55 to +125°C, Smallest,Field Programmable8 output drive strength options,-55 to +125°C, Field ProgrammableSiT90451 MHz to 150 MHz±20, ±25, ±501.8, 2.5 to 3.3 6.6 to 8.0 mA 2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5LVCMOSSiT2044SiT20451 MHz to 110 MHz±20, ±25, ±30, ±50115 MHz to 137 MHz1.8, 2.5 to 3.33.8 to 4.5 mA 4.9 to 6 mA SOT23-5: 2.9 x 2.8LVCMOSVCXOs | ±25 to ±3200 ppm pull range, <1% linearity | Better reliabilitySiT3342/431 MHz to 725 MHz±15, ±25, ±30, ±502.5 to 3.376 to 84 mA3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0LVPECL, LVDS, HCSL0.21 ps RMS phase jitterDCXOs (In-System Programmable) | Digital pull for lowest noise | Up to ±1600 ppm pull range, 5 ppt pull resolution, <1% linearitySiT3541/421 MHz to 725 MHz±20, ±25, ±502.5 to 3.370 to 82 mA 5.0 x 3.2LVPECL, LVDS, HCSLI2C programmable,0.21 ps RMS phase jitter,-40 to +105°CUp-screening and Customization Services Available
Custom value-added services include:
100% burn-in to screen for infant mortality 100% test at extreme temperatures
Quality conformance inspection (QCI), sample testing for high reliability Customer-generated drawings Custom test flows
SiTime MEMS硅晶振航空航天解决方案 - 图文
