CRO3950D/CRO3950S BOWEI Low phase Noise VCO With Ceramic Coaxial Resonator BOWEI INTEGRATED CIRCUITS CO.,LTD. Typical Performance Frequency vs Tuning Voltage Frequency(MHz) 4000 Features ●Coaxial ceramic resonator ●Ultra low phase noise High stability ●Built-in buffer amplifier Low frequency pulling ●Thin film hybrid construction Small size ●Hermetic package (DIP-22C ; SP-22) ●Operating Temperature Range：-55℃～+85℃ Ta=+25℃ Ta=+85℃ Ta= - 55℃ 3980 3960 3940 3920 3900 0 MHz Current ICC Tuning Port Capacitance CT mA pF - 20 ｆＬ－Ｈ：３９２０～３９８０ＭＨｚ - 106 7 70 VT=6V,fm=10KHz – – Absolute Ratings DIP-22C 1 2 Application Notes CRO3950S Lot No 4 3 4 2 CRO 2,5,6 Case GND 4.VCC 3 5 2,5,6 SP-22 DIP-22C 1.VT 3.PO 衰 减 器 Attenuator Attenuator 4 3 3 6 9 12 15 Tuning Voltage(V) Tuning Sensitivity vs Tuning Voltage 5 4 3 2 0 3 6 12 9 15 Tuning Voltage(V) Phase Noise vs Offset Frequency 3.DIP-22C is for CRO3950D；SP-22 is for CRO3950S. CRO 0 SP-22 2.ESD observe handling precautions 1 10 5 1.See assembly section for mounting information 衰 减 器 12 VT=6V,TA:-55～+85℃ 50 Maximum DC Voltage : +15V Maximum Tuning Voltage : +30V Minimum Tuning Voltage : -0.7V Maximum Storage Temp:＋125℃ Ta=+25℃ Ta=+85℃ Ta= - 55℃ 14 Tuning Sensitivity(MHz/V) △f – – – – – 1.N/C 4.VCC 2.VT 3.PO 5.Case GND Phase Noise(dBc/Hz) SФ dBc dBc/Hz 15 Power Output vs Tuning Voltage Output Power(dBm) Symbol Unit Guaranteed Typical Test Condition Parameter VT:0～15V Frequency Range fL～fH MHz 3920～3980 – PO dBm VT=6V Power Output ≥10 12.0 Power Output ｆ ：３９２０～３９８０ＭＨｚ △PO dB ≤±1 .0 ±0.5 Ｌ－Ｈ Variation Tuning Voltage – – VT 0～15 V – Pushing 0.3 VCC=11～13V,VT=6V KVC MHz/V Spurious – ｆＬ－Ｈ：３９２０～３９８０ＭＨｚ ≤-75 Rfs dBc Rfn 12 9 Tuning Voltage(V) Specifications( TA=25℃,VCC=+12V) Harmonics SSB Phase Noise Frequency Drift 6 3 -60 -80 -100 -120 -140 -160 1K 10K 100K 1M Offset (Hz) ● TEL:+86-311-87091891 87091887 ● FAX:+86-311-87091282 ● http://www.cn-bowei.com ● E-mail:[email protected] 48