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There are several differences between the MAX2870 and MAX2871, outlined below:
 

Specification Condition MAX2870 MAX2871
Reference Input Frequency (MHz) Max. 200 210
Maximum PFD Frequency (MHz) INT mode
FRAC mode
105
50
140
125
3.0 GHZ VCO Open Loop Phase Noise (dBc/Hz) @ 10MHz offset -155.0 -158.0
4.5 GHz VCO Open Loop Phase Noise @ 10MHz offset -151.0 -153.0
6.0 GHz VCO Open Loop Phase Noise @ 10 MHz offset -150.0 -151.0
Integrated RMS Jitter (ps)   0.250 0.200
Normalized In-Band Noise Floor (dBc/Hz)   -266 int -230 int
1/f Noise (dBc/Hz)   -95.0 -122.0
2nd Harmonics (VCO/2) dBc   -20 -25
Temperature Sensor & ADC   NO YES
Temperature Compensation from -40C to +85C   NO YES
Phase Synchronization   NO YES
Cycle-Slip Reduction and Fast Lock   NO YES
Mute Until Lock   NO YES
Muted Output Power   -31.0 -40.0
Total Supply Current at Highest Frequency (mA)   162 182

 


 

 

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