Avantek Products Extended Temperature Hyperabrupt Varactor-Tuned Oscillators Technical Data Features 900 MHz to 18 GHz Coverage Buffered Fundamental Oscillator Extremely Fast Tuning * Low Tuning Voltage (less than 20V) 10 mW Minimum Output Power * Hermetic Thin-Film Construction ~54C to +85C Temperature Range 5963-3261E Description HP HTO Series hyperabrupt varactor-tuned fundamental oscillators combine a negative- resistance transistor oscillator with a buffer amplifier (in most models) in a compact, hermeti- cally-welded TO-8 or Avanpak package. The frequency of oscilla- tion is determined by a hyper- abrupt varactor diode acting as a voltage-variable capacitor in a thin-film microstripline resonant circuit. As with conventional (or abrupt) varactor-tuned oscllators, this design provides extremely high tuning rates, limited prima- rily by the internal impedance of the user-supplied tuning voltage source. An integral buffer amplifier stage isolates the oscillator from variations in load impedance, minimizing frequency pulling while producing a full +10 dBm minimum output power level. This permits the HTO Series oscillator to be used without external ampli- fiers or isolators. In addition, the combination of lightly-loaded oscillator with matched buffer amplifier produces a clean output signal with low spurious levels. 3-29 HEWLETT Ki PACKARD HTO Series Pin Configuration TO-8V GROUND TUNE OX-2 GROUND (See Section 6 for detailed case drawings. ) Applications HTO Series oscillators have the frequency agility and reliability necessary for EW and ECM systems. They can be screened to high-reliability and military specifications appropriate to thin- film hybrid components. HTO series oscillators are compat- ible with digital to analog convert- ers. Their excellent tuning linearity (particularly for small frequency shifts) may eliminate the require- ment for external linear-izers and support circuits that make tuning slower, increase system costs, and reduce reliability.Electrical and Performance Specifications Guaranteed Specifications @ 54 to +85C Case Temperature Model No. HTO-0900 HTO-1000 HTO-2000 HTO-2600 Frequency Range, Min. 900-1600 MHz 1000-2000 MHz 20001000 MHz 2600-5200 MHz Power Output into 50-ohm Load, Min. 10 mW/+10 dBm 10 mW/+10 dBm 10 mW/+10 d Bm 10 mW/+10 dBm Power Output Variatlon, Max. +2.5 dB +2.5. dB +2.5dB 2.5 dB Operating Case Temperature Range 84 to +85C -64 to +86C ~54 to +85C -84 to +BAC Frequency Drift Over Operating 20 MHz 45 MHz 30 Miz 120 Miz Temperature, Typ. Pulling Figure (12 dB Return Loss), Typ. 25 MHz 25 MHz 10 MHz 15 MHz Pushing Figure, +15 VDC Supply, Typ. 6 MEZ/V 10 MHz/V 15 MH2/V 20 MH2/V Harmonics, Below Carrier,Typ. 8 dB -7 dB ~12 dB -12 dB Spurious Output Below Carrier, Min. -60 dB -60 dB ~60 dB 60 dB Tuning Voltage Low Frequency 34241 VDC 2+1 VDC 14+2/-0.7 VDC 14+2/-0.7 VDC High Frequency 1642 VDC. 154+5/-2 VDC 1444 VDC 1444 VDC Maximum Tuning Voltage +20 VDC. +20 VDC +20 VDC +20 VDC Tuning Port Capacitance, Nom. 190 pF 190 pF 55 pF 55 pF Phase Noise, Single Sideband, 1 Hz Bandwidth, Typ. 50 kHz From Carrier ~100 dBe/Hz -90 dBe/Hz -87 dBe/liz -87 dBce/Hz 100 kHz From Carrier ~108 dBc/Hz ~98 dBe/Hz D5 dBe/llz -95 dBe/Hz Input Power, +1% Regulation Voltage, Nom. +15 VDC +15 VDC +15 VDC +15 VDC Current, Max. 50 mA 50 mA 100 mA 100 mA Case Style TO-8V TO-8V TO-8V TO-8V Model No. HTO-4000 HTO-7500 HTO-8000 HTO-12000 Frequency Range, Min. 4000-8000 MHz 7500-11000 MHz 8000-12400 MHz 12400-18000 MHz Power Output into 50-ohm Load, Min. 10 mW/+10 dBm 10 mW/+10 dBm 10 mW/+10 dBm 10 mW/+10 dBm Power Output Variation, Max. +2.5 dB +2.5 dB 2.5 AB t2.5dB Operating Case Temperature Range 54 to +86C: 54 to +85C -h4" to +85C Ad to +85C Frequency Drift Over Operating 130 MHz 250 MHz 250 MHz 350 MHz Temperature, Typ. Pulling Figure (12 dB Return Loss), Typ. 12 MHz 50 MHz 40 MHz 40 MHz Pushing Figure, +15 VDC Supply, Typ. 35 MH7/V 45 MH2/V 1MH2vV 5 MHA Harmonics, Below Carrier, Typ. -12 dB ~15 dB 20 AB -20 dB Spurious Output Below Carrier, Min. -60 dB -60 dB -60 dB -60 dB Tuning Voltage Low Frequency 14+2/-0.5 VDC 1+2/-0.5 VDC 2.5+1.5 VDC 2.5415 VDC High Frequency 1444 VDC 1444 VDC. 1743 VDC 1748 VDC Maximum Tuning Voltage +20 VDC +20 VDC +20 VDC +20 VDC Tuning Port Capacitance, Nom. 55 pF 50 pF 50 pF 50 pF Phase Noise, Single Sideband, 1 Hz Bandwidth, Typ, 50 kHz From Carrier -80 dBc/Hz -60 dBe/Hz ~50 dBe/tiz 48 dBc/Hz 100 kHz From Carrier -90 dBc/Hz -70 dBc/iz. ~60 dBe/Hz -57 dBe/Ha Input Power, +1% Regulation Voltage, Nom. +15 VDC +15 VDC +10 to +45 VDC +10 to +15 VDC Current,Max. 100 mA 100 mA 150 mA 150 mA Case Style TO-8V TO-8V OX-2 OX-2 3-30Schematic Output Matching Varactor V Tune Tuning Port Capacitor Resonator O RF Output Typical Performance @ -54 to +85C Case Temperature Key: +25'C 45C ~ $C HTO-0900 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage Ee 16 a 15 50 14 5 3 13[ Power Output a2 42 eu x 16 200 8 GS $5 14 Tuning Curve 150 2 2 o = & 1.2 100 3 2 5 Modulation Sensitivity so 2 1.0 50 a a 0.8 0 2 4 6 8 10 12 14 16 18 20 Tuning Voltage, VOC HTO-2000 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage & 16 go 14 = 212 Power Output 6 10 500 #40 400 3 & ss = 3.5 Tuning Curve 300 = = Q 1 & 3.0 Modulation Sensitivity 4 200 3 2 E #3 2.5 100 N ) 0 12 14 16 18 20 0 24 6 8 Tuning Voltage, VDC 10 Power 3-31 HTO-1000 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage E a so 5 # Power Output 250 218 200 2 S T Curve Se B16 150 2 $1.4 Modulation Sensitivity ~| 100 3 = 1.2 50 =e co 8 1.0 0 2 4 6 8 10 12 14 16 18 20 Tuning Voltage, VDC HTO-2600 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage & 18 a 3 16 - a = a = P 3 sate ~ Power Output 3 12 i i L 500 25.5 400 3 oO . o= > 4.5 Tuning Curve 300 3 Qo = > 5 535 Modulation Sensitivity 4 200 3 2 a c & 2.5 100 8 1.5 0 0 2 4 6 8 10 12 14 16 18 20 Tuning Voltage, VDCTypical Performance (continued) Key: +28C 88C - -$4C HTO-4000 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage 16 53 44 - z a z 12 Power Output 6 10 500 we 7 400 5 = 6 300 2 3 5 200 8 z 4 = ue Modulation Sensitivity 100 3 0 0 2 4 6 B 10 12 14 16 18 20 Tuning Voltage, VDC HTO-8000 Power Output, Frequency and e Modulation Sensitivity vs. Tuning Voltage Q 13 ge OH =t 1 a 3 19 Power 6 12.5 500 Tuning Curve Bais 400 o 10.8 300 & J 9.5 200 8 = a 8.5 Modulation Sensitivity 0 0 2 4 6 8 10 12 14 16 18 20 Tuning Voltage, VDC 7.8 Sensitivity, MHz/V Sensitivity, MHz/V Power Power HTO-7500 Power Output, Frequency and Modulation Sensitivity vs. Tuning Voltage 15 o 3 43 2 1 Power Output a 9 500 #14 Curve 400 3 = 10 300 2 > as 3 g 9 200 Be & =e zc & Modulation 100g 7 0 0 2 4 6 8 10 12 14 16 18 20 Tuning Voltage, VDC HTO-12000 Power Output, Frequency and E Modulation Sensitivity vs. Tuning Voltage 14 B13 : 12 3 " 2 10 8 500 = ~ > a eo ~ wo yw 8 8 Modulation Sensitivity, MHz/V Frequency, MHz =~ a Modulation Sensitivity 4 6 8 10 12 14 16 18 20 Tuning Voltage, VDC 50 ~ 024 Noise Comparison Single Sideband Phase Noise 1k 10k 100k 1M 10M Fourier Frequency, Hz 3-32