June, 2026
【New Product】Significantly Reduces EMI Noise! Development of a Spread Spectrum Type Crystal Oscillator
Kyushu Dentsu Co., Ltd. (KDK) has developed a new series of crystal oscillators with built-in spread spectrum functionality.
As electronic devices continue to become more sophisticated and compact, EMI noise suppression has become a major design challenge.
When EMI noise caused by clock signals becomes an issue, this innovative device slightly varies (modulates) the output frequency to disperse energy concentrated at specific frequencies over a wider bandwidth, thereby significantly reducing peak noise levels.
Features
-
High EMI Noise Reduction Performance
With a wide range of modulation settings, optimal EMI noise suppression can be achieved to meet various system requirements.
Both Center Spread (±0.0625% to ±2.0%) and Down Spread (-0.25% to -2.0%) options are available for flexible selection. -
Available in Various Package Sizes
To support everything from the latest compact devices to general-purpose equipment, industry-standard package sizes are available in a broad lineup.
Available sizes: 2016 / 2520 / 3225 / 5032 / 7050 -
Excellent Operating Conditions and Reliability
Ensures stable operation even in harsh environments such as industrial applications.
・Frequency Range: 0.25MHz to 160MHz
・Supply Voltage: +1.8V ±10% / +3.3V ±10% (+2.5V is also available)
・Operating Temperature: -40°C to +85°C (Support for environments up to +125°C available upon consultation)
New Products
| Series | SPF | SPE | SPD | SPC | SPB |
|---|---|---|---|---|---|
| Size |
2.05x1.65mm |
2.5x2.0mm |
3.2x2.5mm |
 5.0x3.2mm |
 7.0x5.0mm |
| Frequency Range | 0.250MHz ～ 160.000MHz | ||||
| Modulation Rate | Center Spread：±0.0625%, ±0.125%, ±0.25%, ±0.5%, ±1.0%, ±1.5%, ±2.0%
Down Spread：-0.25%, -0.5%, -1.0%, -1.5%, -2.0% |
||||
| Output | CMOS | ||||
| Supply Voltage | +3.3V / +1.8V | ||||
| Operating Temperature | -40 ～ +85℃ | ||||
| Applications | Industrial equipment, FA equipment, printers, interfaces, network devices, etc. | ||||
| Development Schedule ＊As of May 2026 |
Sample：Available Mass Production：September 2026 |
||||
Reference Data
■Spread Spectrum ON / OFF
By enabling Spread Spectrum ON, the output spectrum peaks of the fundamental frequency and harmonic frequencies can be suppressed.
| Product | SPD 100.000MHz |
|---|---|
| SS OFF |  Fundamental：10.43dBc 3rd Harmonic：-0.34dBc |
| SS ON |  Fundamental：-1.72dBc 3rd Harmonic：-17.19dBc |
■Output Spectrum
| Product | SPD 100.000MHz |
|---|---|
| Modulation Rate ±0.25% |  |
| Modulation Rate ±0.50% |  |
| Modulation Rate -0.50% |  |
| Modulation Rate -2.00% |  |
Contact Information
■KDK Global Sales：KDK Headquarter
- Address
- 340 Fukushige, Omura Nagasaki 856-0006, Japan
- TEL
- +81-957-55-1313
- FAX
- +81-957-27-4018
- Click here
■KDK Japan Sales：KDK Tokyo Sales Office
- Address
- 1-2-5-6F, Wakamatsu-cho, Fuchu-city, Tokyo 183-0005 Japan
- TEL
- +81-42-367-8010
- FAX
- +81-42-367-8014
- Click here