ADF4355

Question

Please explain what is the difference between ADF4355 and ADF4355-3?

john-lazzaro · Accepted Answer

Comparing the "Features" block on the first page 
 of the two data sheets reveals the following lines 
 that are different: 
 
 ADF4355: 
 RF output frequency range: 54 MHz to 6800 MHz 
 Analog and digital power supplies: 3.3 V 
 Charge pump and VCO power supplies: 5.0 V typical 
 
 ADF4355-3: 
 RF output frequency range: 51.5625 MHz to 6600 MHz 
 All power supplies: 3.3 V 
 
 The "General Description" block on the right-hand side 
 of the data sheet reveals the following sentences that are 
 different (and also add new information): 
 
 ADF4355: 
 The ADF4355 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. 
 The ADF4355 operates with analog and digital power supplies ranging from 3.15 V to 3.45 V, with charge pump and VCO supplies from 4.75 V to 5.25 V 
 
 ADF4355-3: 
 The ADF4355-3 has an integrated VCO with a fundamental output frequency ranging from 3300 MHz to 6600 MHz 
 The ADF4355-3 operates with analog, digital, charge pump, and VCO power supplies ranging from 3.1515 V to 3.4485 V