NJW4203 Series

Spread Spectrum Modulation (SSFM) Oscillator IC with External Synchronization for Switching Regulators

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Description
The NJW4203 is an oscillator with spread spectrum frequency modulation (SSFM) that outputs two types of antiphase shifted by 0° or 180°. The SSFM reduces the peak noise level of EMI. The output clock spreads the frequency at ±4.4% of the center frequency, and the modulation rate can be selected from f_CLK/2048, f_CLK/512, or f_CLK/128. In addition, a PLL control system improves the stability of the output clock. The NJW4203 operates from 120 kHz to 2.4 MHz, and is suitable for the external synchronization signal application of the switching regulators.

Applications
- External synchronization signal of switching regulator

Spec

	Consumer
Supply Voltage	2.7V to 5.5V
Frequency Range	120kHz to 2400kHz
Frequency Spreading	±4.4%
Number of Outputs	2
Structure	Bi-CMOS Technology
Wide Operating Temperature	-40℃ to +125℃
Junction Temp.	+150℃
Package	MSOP8(VSP8)
Anti-phase outputs to reduce ripple current	0° , 180°
Selectable modulation rate	f_CLK/2048, f_CLK/512, f_CLK/128
Note	SSFM for improved EMI performance Frequency spreading (±4.4%) Standby function

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Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJW4203R-A1		MSOP8(VSP8)	-	NJW-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.