Product Overview
The Si MEMS Oscillator Series 3NM is a surface-mount device featuring an epoxy molding and a 3.2x2.5mm package. Designed for reliable performance, it operates within a wide temperature range and offers LVCMOS output. This oscillator is suitable for various electronic applications requiring stable frequency generation.
Product Attributes
- Brand: SJK
- Series: 3NM
- Packaging: Epoxy Molding, Surface Mount
- Package Size: 3.2x2.5mm
- Output Type: LVCMOS
- Environmental Compliance: RoHS, REACH, HF
- Moisture Sensitivity Level: Level 1
- Minimum Packaging: 3000pcs/reel
Technical Specifications
| Parameter | Symbol | Minimum | Typical | Maximum | Units | Notes |
|---|---|---|---|---|---|---|
| Nominal Frequency | 74.250000 | 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 | 1.62 | 3.3 | 3.63 | V | 10% |
| Input Current | Icc | 10 | mA | |||
| Enable Control | Yes | Pad1 | ||||
| Output Load | CL | 15 | pF | CMOS | ||
| 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 (1st Year at 25) | 3 | ppm/yr. | ||||
| 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
(Units :mm)
Dimensions are not provided in detail in the source text.
# Marking
Marking details are not provided in the source 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. 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 Specification
1. Mechanical Endurance
| Test Item | Test Methods REF. DOC |
|---|---|
| Drop Test | 75 cm height, 3 times on concrete floor. JIS C6701 |
| Mechanical Shock | Device are shocked to half sine wave (1000 G) three mutually perpendicular axes each 3 times. 0.5m sec. duration time 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) MIL-STD-883E |
| Gross Leak | Standard Sample For Automatic Gross Leak Detector, Test Pressure: 2kg / cm2 MIL-STD-883E |
| Fine Leak | Helium Bomging 4.5 kgf / cm 2 for 2Hrs |
| Solderability | Temperature 245 5. Immersing depth 0.5 mm minimum. Immersion time 5 1 seconds. Flux Rosin resin methyl alcohol solvent (1 : 4) MIL-STD-883E |
2. Environmental Endurance
| Test Item | Test Methods REF. DOC |
|---|---|
| Resistance To Soldering Heat | Pre-heat temperature 125 . Pre-heat time 60 ~ 120 sec. Test temperature 260 5 . Test time 10 1 sec. MIL-STD-202F |
| High Temp. Storage | + 125 3 for 1000 12 Hrs MIL-STD-883E |
| Low Temp. Storage | - 40 3 for 1000 12 Hrs |
| Thermal Shock | Total 100 cycles of the following temperature cycle MIL-STD-883E |
| Pressure Cooker Storage | 121 3 , RH100% , 2 bar , 240Hrs JIS C6701 |
| High TempHumidity | 85 3, RH 85% , 1000 Hrs JIS C5023 |
2304131800_SJK-3NM74250C33YC_C668807.pdf
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