(Datasheet) I2779A data sheet PDF





I2779A Datasheet, Low-Cost Notebook EMI Reduction IC

I2779A   I2779A  

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Production February 2003 ® P2779A Lo w-Cost Notebook EMI Reduction IC Featur es • • • • • • Provides up to 15 dB of EMI suppression FCC approve d method of EMI attenuation Generates a 1X low EMI spread spectrum clock of th e input frequency Operates between 20MH z and 38MHz input frequency range Exter nal loop filter for spread percentage a djustment Spreading ranges from ±0.25% to

I2779A Datasheet, Low-Cost Notebook EMI Reduction IC

I2779A   I2779A  
±2.5% • • • • • • • • Ultra low cycle-to-cycle jitter Zero-cy cle slip at small deviations 3.3 V oper ating voltage range 10 mA output drives TTL or CMOS compatible outputs Low pow er CMOS design Available in 8-pin SOIC and TSSOP Available for industrial temp erature operating range (-40º C to 85 C) Block Diagram PD LF VDD XIN XOUT Modulation Crystal oscillator Frequency divid








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