Timer, Oscillator & Pulse Generator IC, Resistor Set, 20 MHz, 2.7 V to 5.5 V, MSOP-10


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Product Overview

The LTC6902CMS#PBF is a Multi-phase Oscillator with spread spectrum frequency modulation that is easy to use. The oscillator frequency is set by a single external resistor (RSET). The LTC6902 also provides an optional spread spectrum frequency modulation (SSFM) capability that can be activated and controlled by an additional external resistor (RMOD). The LTC6902's master oscillator is controlled by the RSET resistor and has a range of 100kHz and 20MHz. In order to accommodate a wider output frequency range, a programmable divider (divide by 1, 10 or 100) is included. The integrated programmable multiphase circuit provides either 2, 3 or 4-phase waveforms. The LTC6902's SSFM capability modulates the oscillator's frequency by a pseudorandom noise (PRN) signal to spread the oscillator's energy over a wide frequency band. This spreading decreases the peak electromagnetic radiation level and improves electromagnetic compatibility (EMC) performance.
  • 2, 3 or 4-phase outputs
  • Optional spread spectrum frequency modulation for improved EMC performance
  • 5kHz to 20MHz Frequency range
  • One external resistor sets the frequency
  • One external resistor sets percent frequency spreading
  • 400µA Typical supply current (VS = 3V, 1MHz)
  • <=1.5% Maximum frequency error (5kHz to 10MHz, TA = 25°C)
  • <=2% Maximum frequency error (5kHz to 10MHz, TA = 0 to 70°C)
  • ±40ppm/°C Temperature stability
  • Fast start-up time (50µs to 1.5ms)
  • 100R CMOS output driver
  • Operates from a single-supply


Clock & Timing, Portable Devices, Power Management, Communications & Networking, Consumer Electronics, Signal Processing

Product Information

MSL 1 - Unlimited
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300 will be available for delivery on 15-Oct-2017

200 will be available for delivery on 26-Sep-2017

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