MAX22193/MAX22195 input signal frequency

Question

Dear Sir, 
 
 Our customer is interesting for our MAX22193/195 solution for new project. Customer would like input 24V 500KHz square signal. After check the datasheet, we can't found this parameter. Could you please help us to check the max input frequency for MAX22193/195? Thanks.

Wei.Shi · Accepted Answer

The MAX22193/5 have a detectable pulse width spec of 220ns min. This spec determines the maximum input signal frequency to be less than 4.5MHz 
 MAX22195 detectable pulse width: 
 
 The MAX22193 detectable pulse width is 200ns, which corresponds to 5MHz maximum input frequency. 
 
 Thanks, 
 Wei)

tridient · Answer

Hello Yenchen, 
 The "detectable pulse width" refers to the shortest/minimum pulse width at input that can be detected by MAX22193/5. 
 In case of MAX22195, tpw has a min of 220ns. It means that pulse width less than 220ns cannot be detected. This means that input freq faster than 1/220ns=4.5MHz cannot be detected. 
 In case of MAX22193, tpw has a max of 200ns. It means that pulse width greater than 200ns can be detected. This means that input freq slower than 1/200ns=5MHz can be detected. 
 Hope it helps explain the subtle differences. 
 Regards, 
 Yucong

Electronic Design Services - PartnerZone

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MAX22193/MAX22195 input signal frequency