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MEMS OSCILLATORS FOR VERSATILE USE MEMS OSCILLATORS AEC-Q100 QUALIFIED MEMS OCXOS & TCXOS MEMS SPREAD SPECTRUM XOS MEMS DIFFERENTIAL OSCILLATORS

MEMS RUGGEDIZED OSCILLATORS

The ruggedized SiTime Endura™ oscillators are designed for aerospace, defence and industrial automation applications that require extremely high resistance to a wide range of harsh environmental conditions.

Based on proven silicon MEMS technology, they offer a high shock immunity up to 30,000 G. At the same time they offer the lowest acceleration sensitivity, best shock and vibration resistance, a high reliability (> 2.2 x 109 hours MTBF), and superior dynamic performance under airflow, thermal gradients, pressure, and power supply noise.

Endura products can be factory-configured to any combination of frequency, stability, and voltage within a wide range of parameters, eliminating long lead times and customization costs. All Endura oscillators are 100 % screened through the SiTime Endura process flow to provide high reliability.

Description

This oscillator is designed for harsh environments and is characterised by an extremely low acceleration sensitivity of 0.1 ppb/G, a shock resistance of 10,000 G and a vibration resistance of 70 G.

Endura products can be factory programmed to any combination of frequency (1 to 137 MHz), stability (±20 ppm) and voltage within a wide rane of parameter, eliminating the usual long lead times and customisation costs.

All Endura oscillators are 100 % screened by the SiTime Endura process flow to ensure high reliability.

A configuration option "FlexEdge™" for higher capacitive loads or configurable rise/fall time for EMI reduction is available.

Technical information

Features

  • Silicon MEMS resonator based oscillators
  • Frequency range 1 MHz ~ 137 MHz
  • Best temperature stability ±20 ppm
  • Widest temperature range -55 °C ~ +125 °C
  • Supply voltage range 1.8 Volt ~ 3.3 Volt
  • Compatible to all standard oscillator packages and pad layouts
  • Low acceleration sensitivity, 0.1 ppb/g
  • 10,000 G shock and 70 G vibration resistance
  • Extremely high reliability
  • FlexEdge™ configurable rise / fall time for EMI reduction
  • AEC-Q100 qualified

Drop-in replacement for the following package dimensions

  • 2016 (2.0 x 1.6 x 0.75 mm)
  • 2520 (2.5 x 2.0 x 0.75 mm)
  • 3225 (3.2 x 2.5 x 0.75 mm)
  • 5032 (5.0 x 3.2 x 0.75 mm)
  • 7050 (7.5 x 5.0 x 0.90 mm)

Additional package type

  • SOT23 (2.9 x 2.8 x 1.27 mm)

Additional services

  • Technical support by our engineers
  • Free samples on request

 

Type
Fre­quency range
Size
Supply Volt­age
Widest Temp­erature Range
Freq­uency Stab­ility
Data Sheet
SiT8944
1.0 MHz – 110.0 MHz
2016 – 7050
1.8 V / 2.5 V / 3.3 V
-55 °C – +125 °C
±20 ppm – ±50 ppm
Type
SiT8944
Fre­quency range
1.0 MHz – 110.0 MHz
Size
2016 – 7050
Supply Volt­age
1.8 V / 2.5 V / 3.3 V
Widest Temp­erature Range
-55 °C – +125 °C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
SiT8945
115.0 MHz – 137.0 MHz
2016 – 7050
1.8 V / 2.5 V / 3.3 V
-55 °C – +125 °C
±20 ppm – ±50 ppm
Type
SiT8945
Fre­quency range
115.0 MHz – 137.0 MHz
Size
2016 – 7050
Supply Volt­age
1.8 V / 2.5 V / 3.3 V
Widest Temp­erature Range
-55 °C – +125 °C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
SiT2044
1.0 MHz – 110.0 MHz
SOT23
1.8 V / 2.5 V / 3.3 V
-55 °C – + 125°C
±20 ppm – ±50 ppm
Type
SiT2044
Fre­quency range
1.0 MHz – 110.0 MHz
Size
SOT23
Supply Volt­age
1.8 V / 2.5 V / 3.3 V
Widest Temp­erature Range
-55 °C – + 125°C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
SiT2045
115.0 MHz – 137.0 MHz
SOT23
1.8 V / 2.5 V / 3.3 V
-55 °C – +125 °C
±20 ppm – ±50 ppm
Type
SiT2045
Fre­quency range
115.0 MHz – 137.0 MHz
Size
SOT23
Supply Volt­age
1.8 V / 2.5 V / 3.3 V
Widest Temp­erature Range
-55 °C – +125 °C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
Description

The Endura Family of high-performance differential oscillators offers popular output drivers for LVPECL, LVDS, HCSL and low-power HCS and are designed for high reliability aerospace and defense applications. These ruggedized devices are available from 1 MHz up to 920 MHz with best available jitter performance option of 70 fs RMS jitter (typ.), and high temperature operation up to 125 °C in different QFN package’s down to 2.0 x 1.6 mm.

They provide low jitter and power supply noise rejection (PSNR) in the presence of environmental hazards, such as shock, vibration, noisy power supply, or EMI.
Ideal for FPGA clocking and other high-speed military applications requiring ultra-low jitter, low power, and small size.

Technical information

Features

  • Silicon MEMS resonator based oscillators
  • Frequency range 1 MHz ~ 920 MHz
  • Best temperature stability ±10 ppm
  • Widest temperature range -40 °C ~ +125 °C
  • Supply voltage range 1.8 Volt ~ 3.3 Volt
  • Compatible to all standard oscillator packages and pad layouts
  • 10,000 G shock and 70 G vibration resistance
  • LVPECL, LVDS, HCSL, Low-power HCSL, FlexSwing
  • Best phase jitter 70fs RMS (typ.)
  • Extremely high reliability
  • AEC-Q100 qualified

Drop-in replacement for the following package dimensions

  • 2016 (2.0 x 1.6 x 0.75 mm)
  • 2520 (2.5 x 2.0 x 0.85 mm)
  • 3225 (3.2 x 2.5 x 0.85 mm)
  • 5032 (5.0 x 3.2 x 0.85 mm)
  • 7050 (7.5 x 5.0 x 0.80 mm)

Additional services

  • Technical support by our engineers
  • Free samples on request

 

Type
Fre­quency range
Size
Supply Volt­age
Widest Temp­erature Range
Freq­uency Stab­ility
Data Sheet
SiT9346
1.0 MHz – 220.0 MHz
3225 –7050
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±10 ppm – ±50 ppm
Type
SiT9346
Fre­quency range
1.0 MHz – 220.0 MHz
Size
3225 –7050
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±10 ppm – ±50 ppm
Data Sheet
SiT9347
220.0 MHz – 725.0 MHz
3225 – 7050
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±10 ppm – ±50 ppm
Type
SiT9347
Fre­quency range
220.0 MHz – 725.0 MHz
Size
3225 – 7050
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±10 ppm – ±50 ppm
Data Sheet
SiT9356
1.0 MHz – 220.0 MHz
2016 – 3225
1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V
-55 °C – +125 °C
±20 ppm – ±50 ppm
Type
SiT9356
Fre­quency range
1.0 MHz – 220.0 MHz
Size
2016 – 3225
Supply Volt­age
1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-55 °C – +125 °C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
SiT9357
220.0 MHz – 900.0 MHz
2016 – 3225
1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V
-55 °C – +125 °C
±20 ppm – ±50 ppm
Type
SiT9357
Fre­quency range
220.0 MHz – 900.0 MHz
Size
2016 – 3225
Supply Volt­age
1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-55 °C – +125 °C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
SiT9551
25.0 MHz – 644.0 MHz
2016 – 3225
1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V
-55 °C – +125 °C
±20 ppm – ±50 ppm
Type
SiT9551
Fre­quency range
25.0 MHz – 644.0 MHz
Size
2016 – 3225
Supply Volt­age
1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-55 °C – +125 °C
Freq­uency Stab­ility
±20 ppm – ±50 ppm
Data Sheet
Description

Utilising SiTime's unique DualMEMS™ temperature sensing and TurboCompensation™ technology, the Endura family of Super TCXO precision oscillators deliver highly stable timing in the presence of environmental stressors such as airflow, temperature fluctuations, vibration, shock and electromagnetic interference (EMI). Ideal for high-reliability aerospace and defense applications.

This MEMS-based Endura Super-TCXO can be factory-programmed to any combination of frequency (in a frequency range of 1 to 220 MHz), stability, voltage and pull range. This programmability allows designers to optimize the clock configuration, eliminating long lead times and customization costs. Products are 100 % tested through the SiTime Endura™ process flow to ensure high reliability.

Technical information

Features

  • Silicon MEMS resonator based oscillators
  • Frequency range 1 MHz ~ 220 MHz
  • Best temperature stability ±0.005 ppm (±5 ppb)
  • Widest temperature range -40 °C ~ +105 °C
  • Supply voltage range 2.5 Volt ~ 3.3 Volt
  • Pull range ±6.25 ppm ~ ±3200 ppm
  • Low power noise rejection (PSNR), 0.2 ps/mV
  • LVCMOS or Clipped Sinewave
  • 30,000 G shock and 70 G vibration resistance
  • I2C digital frequency tuning eliminates external DAC
  • Extremely high reliability 2 billion hours MTBF

Package dimensions

  • 5032 (5.0 x 3.2 x 0.95 mm)
  • 7050 (7.0 x 5.0 mm)

Additional services

  • Technical support by our engineers
  • Free samples on request

 

Type
Fre­quency range
Size
Supply Volt­age
Widest Temp­erature Range
Freq­uency Stab­ility
Data Sheet
SiT5146
1.0 MHz – 60.0 MHz
5032
2.5 V / 2.8 V / 3.0 V / 3.3 V
-55 °C – +105 °C
±0.5 ppm – ±2.5 ppm
Type
SiT5146
Fre­quency range
1.0 MHz – 60.0 MHz
Size
5032
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-55 °C – +105 °C
Freq­uency Stab­ility
±0.5 ppm – ±2.5 ppm
Data Sheet
SiT5147
60.0 MHz – 220.0 MHz
5032
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±0.5 ppm – ±2.5 ppm
Type
SiT5147
Fre­quency range
60.0 MHz – 220.0 MHz
Size
5032
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±0.5 ppm – ±2.5 ppm
Data Sheet
SiT5346
1.0 MHz – 60.0 MHz
5032
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±0.1 ppm – ±0.25 ppm
Type
SiT5346
Fre­quency range
1.0 MHz – 60.0 MHz
Size
5032
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±0.1 ppm – ±0.25 ppm
Data Sheet
SiT5347
60.0 MHz – 220.0 MHz
5032
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±0.1 ppm – ±0.25 ppm
Type
SiT5347
Fre­quency range
60.0 MHz – 220.0 MHz
Size
5032
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±0.1 ppm – ±0.25 ppm
Data Sheet
SiT5348
1.0 MHz – 60.0 MHz
5032
2.5 V / 2.8 V / 3.0 V / 3.3 V
0 °C – +70 °C
±0.5 ppm
Type
SiT5348
Fre­quency range
1.0 MHz – 60.0 MHz
Size
5032
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
0 °C – +70 °C
Freq­uency Stab­ility
±0.5 ppm
Data Sheet
SiT5349
60.0 MHz – 220.0 MHz
5032
2.5 V / 2.8 V / 3.0 V / 3.3 V
0 °C – +70 °C
±0.5 ppm
Type
SiT5349
Fre­quency range
60.0 MHz – 220.0 MHz
Size
5032
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
0 °C – +70 °C
Freq­uency Stab­ility
±0.5 ppm
Data Sheet
SiT5541
1.0 MHz – 60.0 MHz
7050
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±0.01 ppm – ±0.02 ppm
Type
SiT5541
Fre­quency range
1.0 MHz – 60.0 MHz
Size
7050
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±0.01 ppm – ±0.02 ppm
Data Sheet
SiT5543
1.0 MHz – 60.0 MHz
7050
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +95° C
±0.005 ppm
Type
SiT5543
Fre­quency range
1.0 MHz – 60.0 MHz
Size
7050
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +95° C
Freq­uency Stab­ility
±0.005 ppm
Data Sheet
Description

The Endura™ ruggedized 32.768 kHz Super-TCXO is designed for pulse-per-second timekeeping is built for ruggedized aerospace, defense applications as hand radios, portable equipment, ground vehicles and airborne environments that operate in harsh environments.
With the best-in-class ±0.1 ppm to ±0.4 ppm frequency stability, this 32.768 kHz reference clock is ideal for GNSS receivers. Die excellent stability enables GNSS signal lock within seconds, provide accurate timing and location data much faster. Performance is further enhanced with low 2 ns RMS phase jitter and a 20-year aging of only ±2.5 ppm.

Technical information

Features

  • Frequency 32.768 kHz TCXO
  • Best temperature stability ±0.1 ppm
  • Widest temperature range -55 °C ~ +105 °C
  • Supply voltage range 1.62 Volt ~ 3.63 Volt
  • 20-year aging ±2.5 ppm
  • Ultra-low power: 6 µA (typ)
  • Low G-sensitivity: 20 ppb/G
  • Extremely high reliability

Package dimensions

  • 2520 (2.5 x 2.0 mm)

Additional services

  • Technical support by our engineers
  • Free samples on request

 

Type
Fre­quency range
Size
Supply Volt­age
Widest Temp­erature Range
Freq­uency Stab­ility
Data Sheet
SiT7910
32.768 kHz
2520
1.8 V / 1.62 V – 3.63 V
-55 °C – +105 °C
±0.1 ppm – ±0.4 ppm
Type
SiT7910
Fre­quency range
32.768 kHz
Size
2520
Supply Volt­age
1.8 V / 1.62 V – 3.63 V
Widest Temp­erature Range
-55 °C – +105 °C
Freq­uency Stab­ility
±0.1 ppm – ±0.4 ppm
Data Sheet
Description

SiTime Endura VCXOs, a family of differential VCXO (voltage controlled oscillator), engineered for harsh environments, provide exceptional performance and high reliability. Ideal for aerospace and defense applications.

This device supports LVPECL, LVDS and HCSL output types with 27 exceptionally linear APR (absolute pull range) options up to ±3200 ppm, 0.21 ps jitter (typ.), ±15 ppm stability, and 0.1 % pull range linearity. The VCXOs were designed to maintain these specs in the presence of common environmental stressors, such as shock, vibration, power supply noise, and EMI.

Technical information

Features

  • Silicon MEMS resonator based oscillators
  • Frequency range 1 MHz ~ 720 MHz
  • Best temperature stability ±15 ppm
  • Widest temperature range -40 °C ~ +105 °C
  • Supply voltage range 2.5 Volt ~ 3.3 Volt
  • Pull range ±6.25 ppm ~ ±3200 ppm
  • Low jitter 0.21 ps RMS (12KHz to 20 MHz)
  • LVPECL, LVDS, HCSL
  • 30,000 G shock and 70 G vibration resistance
  • Extremely high reliability 1 x 109 h MTBF (< 1 FIT)

Package dimensions

  • 3225 (3.2 x 2.5 x 0.85 mm)
  • 5032 (5.0 x 3.2 x 0.85 mm)
  • 7050 (7.0 x 5.0 x 0.85mm)

Additional services

  • Technical support by our engineers
  • Free samples on request

 

Type
Fre­quency range
Size
Supply Volt­age
Widest Temp­erature Range
Freq­uency Stab­ility
Data Sheet
SiT3342
1.0 MHz – 220.0 MHz
3225 – 7050
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±15 ppm – ±50 ppm
Type
SiT3342
Fre­quency range
1.0 MHz – 220.0 MHz
Size
3225 – 7050
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±15 ppm – ±50 ppm
Data Sheet
SiT3343
220.0 MHz – 720.0 MHz
3225 – 7050
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +105 °C
±15 ppm – ±50 ppm
Type
SiT3343
Fre­quency range
220.0 MHz – 720.0 MHz
Size
3225 – 7050
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +105 °C
Freq­uency Stab­ility
±15 ppm – ±50 ppm
Data Sheet
Description

Endura Epoch Platform™ MEMS OCXOs (oven-controlled oscillators) boost the resilience of PNT systems (positioning, navigation & timing) by providing reliable holdover if the system loses the GPS signal.

Leveraging SiTime’s unique temperature sensing technology and advanced CMOS design, it delivers excellent stability in the presence of environmental stressors such as airflow, temperature perturbation, vibration, shock, and EMI. The OCXO comes in a small surface mount package (9.0 mm x 7.0 mm x 3.6 mm) and offers ±1 ppb over-temp stability over -40 °C to 95 °C, ±0.01 ppb/°C typical frequency slope (ΔF/ΔT), and 5E-12 Allen deviation. The products have a large pull range from ±3.125 to ±400 ppm and outstanding 20,000 G shock survivability.

Technical information

Features

  • Silicon MEMS resonator based oscillators
  • Frequency range 10 MHz ~ 220 MHz
  • Best temperature stability ±0.001 ppm (±1 ppb)
  • Widest temperature range -40 °C ~ +95 °C
  • Supply voltage range 2.5 Volt ~ 3.3 Volt
  • 12-Hour holdover in real world conditions
  • ±10 ppt/°C frequency slope, 5x 10 - 12 ADEV at 10 seconds
  • Only 420 mW steady state power consumption
  • Best phase Jitter 0.1ps RMS
  • Frequency Pulling range from ±3.125 to ±400 ppm
  • 1 x 109 h MTBF (< 1 FIT)
  • LVCMOS or Clipped Sinewave

Package dimensions

  • 9070 (9.0 x7.0 x 3.6 mm)

Additional services

  • Technical support by our engineers
  • Free samples on request

 

Type
Fre­quency range
Size
Supply Volt­age
Widest Temp­erature Range
Freq­uency Stab­ility
Data Sheet
SiT7101
10.0 MHz – 60.0 MHz
9.0 x 7.0 x 3.6
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +95 °C
±0.003 ppm – ±0.005 ppm
Type
SiT7101
Fre­quency range
10.0 MHz – 60.0 MHz
Size
9.0 x 7.0 x 3.6
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +95 °C
Freq­uency Stab­ility
±0.003 ppm – ±0.005 ppm
Data Sheet
SiT7102
60.0 MHz – 220.0 MHz
9.0 x 7.0 x 3.7
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +95 °C
±0.003 ppm – ±0.005 ppm
Type
SiT7102
Fre­quency range
60.0 MHz – 220.0 MHz
Size
9.0 x 7.0 x 3.7
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +95 °C
Freq­uency Stab­ility
±0.003 ppm – ±0.005 ppm
Data Sheet
SiT7121
10.0 MHz – 60.0 MHz
9.0 x 7.0 x 3.8
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +95 °C
±0.001 ppm
Type
SiT7121
Fre­quency range
10.0 MHz – 60.0 MHz
Size
9.0 x 7.0 x 3.8
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +95 °C
Freq­uency Stab­ility
±0.001 ppm
Data Sheet
SiT7112
60.0 MHz – 220.0 MHz
9.0 x 7.0 x 3.9
2.5 V / 2.8 V / 3.0 V / 3.3 V
-40 °C – +95 °C
±0.001 ppm
Type
SiT7112
Fre­quency range
60.0 MHz – 220.0 MHz
Size
9.0 x 7.0 x 3.9
Supply Volt­age
2.5 V / 2.8 V / 3.0 V / 3.3 V
Widest Temp­erature Range
-40 °C – +95 °C
Freq­uency Stab­ility
±0.001 ppm
Data Sheet
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