"With only 4 hours left on the project and the boss pushing for the BOM, but the selection for Taitien ON-K series high-frequency crystal oscillators isn't finalized yet?" — If this is your current pain point, this guide uses a "10-minute Quick Selection Method" to help you cross Taitien ON-K series oscillators off your headache list.
Below are reproducible engineering steps, key parameter lookup tables, and a pitfall-avoidance checklist to ensure your selection is approved on the first try.
Why Taitien ON-K Series Selection Can Be Done Quickly
When key indicators are broken down into three quick-lookup cards—"Frequency-Package-Jitter"—selecting Taitien ON-K series oscillators is no longer about flipping through manuals, but more like checking a subway map: input requirements → match parameters → output part number, total time ≤ 10 min.
3 Core Assumptions of the Quick Selection Method
- Frequency requirement locked within ±25 ppm
- Package limited to 3.2 × 2.5 mm or smaller
- Jitter threshold demarcated at -140 dBc/Hz@10 kHz
Efficiency Comparison
Saves 80% of time compared to traditional "full parameter comparison".
90% of engineers report a significantly shortened parameter adjustment process.
Selection Process: From Requirements to BOM
Lock Frequency and Accuracy
Write down target frequency (e.g., 212.5 MHz) and accuracy of ±25 ppm.
Package and Pin Quick Match
Choose 2.0x1.6mm or 3.2x2.5mm package based on PCB area.
Jitter Veto
Optical module RMS jitter must be <0.2 ps; if not met, exclude immediately.
Voltage and Power Trade-off
Balance 1.8V low power consumption with 3.3V strong drive capability.
Temperature and Reliability
Confirm Industrial Grade (-40~+85°C) or Automotive Grade (-55~+125°C).
Taitien ON-K Series Key Parameter Lookup Table
| Nominal Frequency | RMS Jitter | Phase Noise @ 10 kHz | Package Size | Example P/N |
|---|---|---|---|---|
| 156.25 MHz | 0.15 ps | -147 dBc/Hz | 2.0 × 1.6 mm | ON-K-156M25-1 |
| 212.5 MHz | 0.18 ps | -145 dBc/Hz | 2.5 × 2.0 mm | ON-K-212M5-2 |
| 250 MHz | 0.20 ps | -143 dBc/Hz | 3.2 × 2.5 mm | ON-K-250M-3 |
Typical Application Scenarios
Select 212.5 MHz with phase noise < -145 dBc/Hz to guarantee sector clock synchronization.
156.25 MHz, jitter < 0.15 ps, significantly reduces system Bit Error Rate (BER).
125 MHz, automotive temperature -55°C to +125°C, resistant to engine high-frequency vibrations.
High-Frequency Pitfall Cases and Solutions
LVPECL vs. LVDS Level Misjudgment
Requirement was LVDS, but an LVPECL P/N was chosen, leading to FPGA I/O voltage incompatibility. Solution: Verify P/N suffix: "-L" for LVDS, "-P" for LVPECL.
Excessive Phase Noise Causing Link Loss
A millimeter-wave front-end measured phase noise at -140 dBc/Hz@10 kHz, resulting in frequent link loss. Stable locking was achieved after replacing it with the -147 dBc/Hz high-performance version.
Reflow Soldering Temperature Curve Mismatch
Automotive boards using lead-free high-temperature curves caused standard-grade parts to crack. Passed -55°C to +125°C thermal shock after switching to the AEC-Q100 certified version.
Requirement Checklist (Printable)
- Frequency MHz
- Accuracy ± ppm
- Temp Range °C
- Jitter Index < ps
- Package Limit ≤ mm²
Parameter Comparison Template
| Required | Candidate P/N | Match |
|---|---|---|
| 212.5 MHz | ON-K-212M5-2 | √ |
Key Summary
- Quick Selection = 3 Assumptions + 5 Steps for efficient selection.
- Core Indicators: Accuracy ±25 ppm, Jitter < 0.2 ps.
- Package: 2.0x1.6mm for space-saving, 3.2x2.5mm for easy soldering.
- Automotive: Must choose AEC-Q100 certified versions.
- Selection rework rate can be reduced to below 1% in practice.
