Quartz SAW Frequency Stability
SC3018B
• • • • • Quartz SAW Frequency Stability Fundamental Fixed Frequency Very Low Jitter and Power Consumption Rugge...
Description
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) technology. The design results in low jitter, compact size, and low power consumption. Differential outputs provide a sine wave that is capable of driving 50 Ω loads.
250.0 MHz Differential Sine-Wave Clock
Rating Power Supply Voltage (VCC at Terminal 1) Input Voltage (ENABLE at Terminal 8) Case Temperature (Powered or Storage)
Value 0 to +4.0 0 to +4.0 -40 to +85
Units VDC VDC °C
SMC-8 Case
Electrical Characteristics
Output Frequency Q and Q Output Characteristic Absolute Frequency Tolerance from 250.00 MHz Voltage into 50Ω (VSWR ≤ 1.2) Operating Load VSWR Symmetry Harmonic Spurious Nonharmonic Spurious Q and Q Period Jitter Output (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...
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