Si MEMS Oscillator Series 3NM
Product Overview
The Si MEMS Oscillator Series 3NM is a surface mountable oscillator designed with epoxy molding, featuring a 3.2x2.5mm package. This series offers a nominal frequency of 49.152MHz and operates within a voltage range of 1.8V to 3.3V, with an operating temperature range of -40C to 85C. It utilizes LVCMOS output and is built using AT CUT crystal technology. The oscillator is suitable for applications requiring stable frequency output and is designed for reliability, as evidenced by its extensive testing specifications.
Product Attributes
- Brand: SJK
- Series: 3NM
- Package Type: Surface Mount
- Molding: Epoxy
- Crystal Cutting Type: AT CUT (thickness shear mode)
- Environmental Attributes: RoHS, REACH, HF
- Moisture Sensitivity Level: Level 1
- Minimum Packaging: 3000pcs/reel
Technical Specifications
| Parameter | SYM | MIN | TYPE | MAX | UNITS | Notes |
|---|---|---|---|---|---|---|
| Nominal Frequency | 49.152000 | MHZ | ||||
| Frequency Stability AT 25 | 10 | PPM | ||||
| Frequency Stability Over Operating Temperature range | 15 | PPM | ||||
| Operating Temperature | Topr | -40 | 25 | 85 | ||
| Storage Temperature | Tstg | -55 | 125 | |||
| Supply Voltage | VDD | 3.3 | 10% | V | 1.62~3.63V | |
| Input Current | Icc | 10 | mA | |||
| Enable Control | Yes | Pad1 | ||||
| Output Load : CMOS | CL | 15 | pF | |||
| Output Voltage High | VoH | 90% | Vdd | V | ||
| Output Voltage Low | VoL | 10% | Vdd | V | ||
| Rise Time | Tr | 5 | ns | 10%90%VDD Level | ||
| Fall Time | Tf | 5 | ns | 90%10%VDD Level | ||
| Symmetry (Duty ratio) | TH/T | 45 | 55 | % | ||
| Start-up Time | Tosc | 10 | ms | |||
| Enable Voltage High | Vhi | 70% | Vdd | V | ||
| Disable Voltage Low | Vlo | 30% | Vdd | V | ||
| Aging | 3 | ppm/yr. | 1st. Year at 25 | |||
| Output Disable Delay Time | T off | 150 | us | |||
| Output Enable Delay Time | T on | 150 | us | |||
| Phase Jitter 12KHZ~20MHZ | 0.5 | 1.0 | ps | |||
| Dimensions | 3.2 | x | 2.5 | mm |
Dimensions
3.2x2.5mm
Marking
Information not explicitly detailed in the provided text.
Test Circuit
Control input (output enable/disable): Logic 1 or open on pad 1. Oscillator output. Logic 0 on pad 1: Disable output to high impedance.
Waveform Conditions
Waveform measurement system should have a minimum bandwidth of 5 times the frequency being tested.
Output Enable/Disable Delay
The oscillator timing during normal operation is shown in the timing diagram. When the device is in standby, the oscillator stops. When standby is released, the oscillator starts and stable oscillator output occurs after a short delay.
Suggested Reflow Profile
Total time: 200 sec. Max / Solder melting point: 220
Reliability Test Specifications
Mechanical Endurance
- Drop Test: 75 cm height, 3 times on concrete floor (REF. DOC: JIS C6701)
- Mechanical Shock: Half sine wave (1000 G), 0.5m sec. duration time, three mutually perpendicular axes each 3 times (REF. DOC: MIL-STD-202F)
- Vibration: Frequency range 10 ~ 2000 Hz, Amplitude 1.52 mm/20G, Sweep time 20 minutes, Perpendicular axes each test time 4 Hrs (Total test time 12 Hrs) (REF. DOC: MIL-STD-883E)
- Gross Leak: Standard Sample For Automatic Gross Leak Detector, Test Pressure: 2kg / cm2 (REF. DOC: MIL-STD-883E)
- Fine Leak: Helium Bombing 4.5 kgf / cm 2 for 2 Hrs
- Solderability: Temperature 245 5, Immersing depth 0.5 mm minimum, Immersion time 5 1 seconds, Flux Rosin resin methyl alcohol solvent (1:4) (REF. DOC: MIL-STD-883E)
Environmental Endurance
- Resistance To Soldering Heat: Pre-heat temperature 125 , Pre-heat time 60 ~ 120 sec. Test temperature 260 5 , Test time 10 1 sec. (REF. DOC: MIL-STD-202F)
- High Temp. Storage: +125 3 for 1000 12 Hrs (REF. DOC: MIL-STD-883E)
- Low Temp. Storage: -40 3 for 1000 12Hrs (REF. DOC: MIL-STD-883E)
- Thermal Shock: Total 100 cycles of specified temperature cycle (REF. DOC: MIL-STD-883E)
- Pressure Cooker Storage: 121 3, RH100%, 2 bar, 240Hrs (REF. DOC: JIS C6701)
- High Temp & Humidity: 85 3, RH 85%, 1000 Hrs (REF. DOC: JIS C5023)
2304131800_SJK-3NM49152C33YC_C668801.pdf
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