sc3018b - RF Monolithics Inc

sc3018b Quartz SAW Frequency Stability

SC3018B • • • • • Quartz SAW Frequency Stability Fundamental Fixed Frequency Very Low Jitter and Power Consumption Rugged, Miniature, Surface-Mount Case Low-Voltage Power Supply (3.3 VDC) This digital clock is designed for use with high-speed CPUs and communication equipment. Fundamentalmode oscillation is made possible by surface-acoustic-wave (SAW) techno.

Features

(Disabled) No Noise on VCC 200 mVP-P from 1 MHz to ½ fO on Amplitude into 50 Ω VIH VIL IIH IIL tPD VCC ICC TA 1, 3 1, 3 +3.13 0 +3.30 20 RFM SC3018B 250.00 MHz YYWW 3, 9 Sym fO ∆fO VO Notes 1, 2 1, 3 3, 4, 5 3, 4, 6 3, 4, 6, 7 3, 4, 7, 8 3, 9 3 50 VCC-0.1 0.0 3 VCC VCC+0.1 0.20 5 -1 1 +3.47 40 +70 15 Minimum 249.950 0.60 49 Typical Maximum 250.050 ±200 1.1 2:1 51 -30 -60 30 35 75 Units MHz ppm VP-P % dBc dBc psP-P psP-P mVP-P KΩ V V mA mA ms VDC mA °C Output DC Resistance (between Q & Q) ENABLE (Terminal 14) Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Propagation.