V285ME05 9939 Via Pasar • San Diego, CA 92126 TEL (858) 621-2700 FAX (858) 621-2722 VOLTAGE CONTROLLED OSCILLATOR Rev A1 PHASE NOISE (1 Hz BW, typical) -50 FEATURES 275 - 305 • Frequency Range: • Tuning Voltage: 0.5-4.5 Vdc • MINI-14S-L - Style Package APPLICATIONS • Satellite Modems • Mobile Radios • Earthstations MHz £(f) (dBc/Hz) -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 1.0E+3 10.0E+3 100.0E+3 OFFSET (Hz) VALUE UNITS 275 - 305 MHz -105 dBc/Hz -15 0.5-4.5 20 dBc Vdc MHz/V 4.75±3.75 dBm 50 Ω Input Capacitance (max.) 200 pF Pushing <3 MHz/V Pulling (14 dB Return Loss, Any Phase) <1 MHz -40 to 85 °C PERFORMANCE SPECIFICATIONS Oscillation Frequency Range Phase Noise @ 10 kHz offset (1 Hz BW, typ.) Harmonic Suppression (2nd, typ.) Tuning Voltage Tuning Sensitivity (avg.) Power Output Load Impedance Operating Temperature Range Package Style MINI-14S-L POWER SUPPLY REQUIREMENTS Supply Voltage (Vcc, nom.) 4.5 Vdc Supply Current (Icc, typ.) 20 mA All specifications are typical unless otherwise noted and subject to change without notice. APPLICATION NOTES • AN-100/1 : Mounting and Grounding of VCOs • AN-102 : Proper Output Loading of VCOs • AN-107 : How to Solder Z-COMM VCOs NOTES: © Z-Communications, Inc. Page 1 All rights reserved LOW COST - HIGH PERFORMANCE VOLTAGE CONTROLLED OSCILLATOR V285ME05 PAGE 2 TUNING CURVE, typ. FREQUENCY (MHz) 340 320 300 -40 °c °c °c 25 °c 280 85 260 25 240 220 200 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 TUNING VOLTAGE (Vdc) POWER CURVE, typ. POWER OUTPUT (dBm) 14 12 10 8 6 4 2 0 -2 213 237 253 267 278 289 299 309 318 328 FREQUENCY (MHz) PHYSICAL DIMENSIONS ± © Z-Communications, Inc. Page 2 Printed in the U.S.A.