NOT RECOMMENDED FOR NEW DESIGNS
Micrel ULTRA PRECISION 8:1 MUX WITH
INTERNAL TERMINATION AND 1:2
400mV LVPECL FANOUT BUFFER Precision Edgeв„ў
SY58039U Precision Edgeв„ў
SY58039U FEATURES
-Selects between 1 of 8 inputs, and provides 2
precision, low skew LVPECL output copies
-Ultra-low jitter design: 80fsrms phase jitter (typ)
-Guaranteed AC performance over temperature and
voltage: DC to 5Gbps throughput 100mV) 100mV (SEL-to-Q)
О”tpd Tempco Output-to-Output Skew
Part-to-Part Skew Max GHz
500 ps 600 ps 220 fs/В°C Note 9 15 ps Note 10 150 ps tJITTER RMS Phase Jitter Output = 622MHz
Integration Range: 12kHz -20MHz tr, tf Output Rise/Fall Time At full output swing, 20% to 80%. 80
25 60 fsrms
85 Notes:
8. High-frequency AC-parameters are guaranteed by design and characterization.
9. Output-to-output skew is measured between two different outputs under identical input transitions.
10. Part-to-part skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the
respective inputs. PHASE NOISE Noise Power (dBc/Hz) RMS PHase Jitter (Random)
12kHz to 20MHz = 80fs (Typical) OFFSET FREQUENCY (Hz) Phase Noise Plot: 622MHz @ 3.3V
M9999-102711 …
