LTC6908IS6-1#PBF

LINEAR TECHNOLOGY  LTC6908IS6-1#PBF  芯片, 振荡器, 互补输出, SMD, TSOT236

The is a dual Output Oscillator with spread spectrum modulation that provides 2-outputs, shifted by either 180 or 90°. The oscillator frequency is programmed by a single external resistor RSET and spread spectrum frequency modulation SSFM can be activated for improved electromagnetic compatibility EMC performance. The LTC6908 operates with a single 2.7 to 5.5V supply and provides rail-to-rail, 50% duty cycle square wave outputs. A single resistor from 10k to 2M is used to select an oscillator frequency from 50kHz to 10MHz 5V supply. The LTC6908"s SSFM capability modulates the output frequency by a pseudorandom noise PRN signal to decrease the peak electromagnetic radiation level and improve EMC performance. The amount of frequency spreading is fixed at ±10% of the centre frequency. When SSFM is enabled, the rate of modulation is selected by the user. The three possible modulation rates are fOUT/16, fOUT/32 and fOUT/64.

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Complementary outputs 0/180°

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50kHz to 10MHz Frequency range

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One external resistor sets the frequency

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Optional spread spectrum frequency modulation for improved EMC performance

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±10% Frequency spreading

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400µA Supply current typical V+ = 5V, 50kHz

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* ±40ppm/°C Temperature stability

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Fast start-up time 260µs typical, 1MHz

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Outputs muted until stable

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Operates from a single-supply