CHO Products:

Mobius Microsystems’ CMOS Harmonic Oscillator™ (CHO) product is an accurate, self-referenced frequency source that is implemented entirely in standard CMOS. The product uses an all-CMOS harmonic (LC) oscillator design that achieves very low frequency drift over all environmental conditions without requiring any type of mechanical resonator structure.

The key innovation that Mobius brings to market is a complex analog control circuitry that compensates for process, voltage and temperature variations to stabilize the oscillating frequency of the CMOS harmonic oscillator with sufficient accuracy in the open-loop configuration. The technology enables CHO to support many common consumer electronics and storage system interfaces, and eliminates crystal oscillators from today’s designs.

CHO frequency sources are easy-to-use and designed to offer accurate clock signals with excellent phase noise and jitter. Mobius offers a broad selection of oscillator options in various output frequencies for many interface standards:

 

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Application	Part #	Frequency [MHz]	# of Outputs	Output Signal	VCC [V]	Operating Temperature [°C]	Frequency Tolerance	Pins	Package	Ev-kit
SSCG*	MM8511	10,12,24,30,66	1	CMOS	3.3	0 - 70	Defined by SSCG profile	8	TSSOP 3x6.4mm	YES
SSCG*	MM8511	10,12,24,30,66	1	CMOS	3.3	0 - 70	Defined by SSCG profile	8	DFN 3x3mm	YES
SSCG*	MM8501	10,12,24,30,66	1	CMOS	3.3	0 - 70	Defined by SSCG profile	6	SMD- 7x5mm	Q308
SSCG*	MM8501	10,12,24,30,66	1	CMOS	3.3	0 - 70	Defined by SSCG profile	6	SMD 5x3.2mm	Q308
USB 2.0 HS	MM8201	12,24,30,48	1	CMOS	3.3	0 - 70	+500ppm	6	DFN 3x3mm	Q308
S-ATA	MM8101	25,30,40,50,75	1	CMOS	3.3	0 - 70	+350ppm	6	DFN 3x3mm	Q308

*Denotes Spread Sprectrum Clock Generator