Home | | | VCOs for Space Low Phase Noise VCOs

Low Phase Noise VCOs

API Technologies' Voltage Controlled Oscillators (VCOs) are rugged, high performance, customizable varactor diode-based designs. Key features include:

  • Use of thermistors on all VCO designs for added temperature stability.
  • Gold substrate film yields lower loss and enhances phase noise performance.
  • MIL PRF 38534 screening is available.
  • Ceramic and metal construction provides low junction temperatures.
  • Use of bipolar transistors to achieve low phase noise and high output power.
  • Integrate unique low pass filtering for superior harmonic performance.

Model #Frequency
(MHz)
Tuning
Voltage
(Volts)
Phase
Noise
(-dBc/Hz)
Output
Power
(dBm)
Harmonics
(dBc)
Supply
(Volts/mA)
TOM9301 40 to 80 0 to 20 125 (100 kHz offset) 13 -13 15 / 14
TOM9302 50 to 100 0 to 20 130 (100 kHz offset) 12 -15 15 / 14
TOM9114 60 to 120 0 to 20 120 (100 kHz offset) 12 -11 15 / 14
TOM9008 70 to 100 1 to 20 115 (100 kHz offset) 10 -12 10 / 9.5
HV27T-11 100 to 200 0 to 20 125 (50 kHz offset) 15 -12 15 / 25
TOM9303 100 to 200 0 to 20 125 (100 kHz offset) 13 -13 15 / 15
TOM9009 100 to 150 1 to 15 125 (100 kHz offset) 10 -12 10 / 9.5
TOM9304 150 to 300 0 to 20 120 (100 kHz offset) 13 -15 15 / 16
HV37T-8 150 to 300 0 to 20 110 (50 kHz offset) 14 -10 15 / 30
TOM9338 180 to 220 0 to 12 120 (100 kHz offset) 17.5 -20 15 / 26
HV37T-11 200 to 400 0 to 20 123 (50 kHz offset) 16 -12 15 / 15
TOM9305 200 to 400 0 to 20 120 (100 kHz offset) 12.5 -30 15 / 14
TOM9306 250 to 500 0 to 20 120 (100 kHz offset) 12 -17 15 / 15
HV37T-7 300 to 600 0 to 25 110 (50 kHz offset) 12 -15 15 / 30
TOM9308 350 to 400 0 to 5 120 (100 kHz offset) 6 -15 5 / 12
HV47T-1 400 to 800 0 to 25 105 (50 kHz offset) 15 -12 15 / 30
TOM9310 470 to 570 0 to 15 110 (100 kHz offset) 12 -17 9 / 16
TOM9311 550 to 850 0 to 12 100 (100 kHz offset) 12 -20 12 / 35
TOM9052 600 to 900 0 to 15 118 (100 kHz offset) 15 -20 15 / 20
TOM9335 750 to 940 0 to 5 102 (100 kHz offset) 3 -11 5 / 8
TOM9328 800 to 1300 0 to 15 118 (100 kHz offset) 13 -20 15 / 22
HV57T-4 800 to 1600 0 to 20 107 (50 kHz offset) 12 -14 15 / 70
TOM9100 900 to 1400 1 to 15 112 (100 kHz offset) 13 -20 12 / 22
HV54T-1 950 to 1350 0 to 15 107 (50 kHz offset) 12 -14 15 / 30
HV67T-1 1000 to 2000 0 to 20 105 (50 kHz offset) 12 -14 15 / 50
TOM9314 1200 to 2000 0 to 20 105 (100 kHz offset) 12 -15 15 / 20
TOM9332 1400 to 1800 0 to 15 108 (100 kHz offset) 12 -18 15 / 20
TOM9211 1500 to 2750 0 to 20 110 (100 kHz offset) 12 -20 15 / 19
TOM9111 1500 to 2750 0 to 20 100 (100 kHz offset) 12 -20 15 / 19
HV66T-1 1500 to 2500 0 to 20 105 (50 kHz offset) 12 -15 15 / 50
TOM9320 1700 to 2300 3 to 15 105 (100 kHz offset) 12 -20 15 / 45
TOM9330 1700 to 2700 0 to 20 101 (100 kHz offset) 12 -20 15 / 19
TOM9331 1725 to 1790 0 to 5 104 (100 kHz offset) 9.5 -30 5 / 30
TOM9329 1875 to 1975 0 to 7.5 105 (100 kHz offset) 7 -30 5 / 24
TOM9250 2000 to 2500 1 to 15 100 (100 kHz offset) 11.5 -20 15 / 30
HV87T-4 2000 to 4000 0 to 20 100 (50 kHz offset) 12 -12 15 / 50
TOM9327 2200 to 2300 0 to 7.5 105 (100 kHz offset) 7 -30 5 / 27
TOM9324 2200 to 2400 1 to 13 105 (100 kHz offset) 14 -25 15 / 27
TOM9325 2200 to 2700 1.5 to 10 105 (100 kHz offset) 12 -18 12 / 33
TOM9326 2255 to 2280 0.5 to 4.5 105 (100 kHz offset) 6 -24 5 / 20
TOM9316 2500 to 4000 0 to 20 100 (100 kHz offset) 9 -15 15 / 25
HVA87T-3 2600 to 5200 0 to 18 92 (50 kHz offset) 18 -12 15 / 100
TOM9340 3200 to 4000 0 to 12 95 (100 kHz offset) 10 -15 12 / 27
HV83T-1 3500 to 4500 0 to 20 93 (50 kHz offset) 11 -14 15 / 50
TOM9317 3500 to 4500 0 to 20 90 (100 kHz offset) 7 -15 15 / 25
TOM9339 3900 to 4100 0 to 12 95 (100 kHz offset) 9.5 -16 12 / 21
HV83T-2 4000 to 5000 0 to 20 92 (50 kHz offset) 12 -14 15 / 50
TOM9318 4000 to 5000 0 to 20 90 (100 kHz offset) 7 -20 15 / 25
HVA107T-1 4000 to 8000 0 to 20 90 (50 kHz offset) 10 -10 15 / 86
HV93T-1 4700 to 6000 0 to 20 90 (50 kHz offset) 10 -14 15 / 50
All values listed are typical at 25°C

Model
Number
Fo (MHz)Tuning Range (MHz)Kvco
(ppM/V)
Tuning Linearity (%)Harm-
onic Spur-
ious (dBc) Max
Non-
harm-
onic Spur-
ious (dBc) Max
SSB Phase Noise (dBc/Hz)Icc
(Typ)
(mA)
Tcase
(Oper-
ating)
°C
1
kHz
10
kHz
100
kHz
1
MHz
10
MHz
MN725-0400 400 700 140 0 +/-5 -30 -60 -109 -132 -152 -160 -160 90 -55 to +85
MN725-0500 500 700 140 0 +/-5 -30 -60 -109 -132 -152 -160 -160 90 -55 to +85
MN725-0625 625 700 140 0 +/-5 -30 -60 -109 -132 -152 -160 -160 90 -55 to +85
MN725-1250 1250 700 140 0 +/-5 -30 -60 -103 -126 -146 -154 -156 120 -55 to +100
MN725-2500 2500 700 140 0 +/-5 -30 -60 -97 -120 -140 -148 -150 120 -55 to +100
Vcc = 5 V +/- 0.25 volts
Output Power = 10 +/- 2 dBm
Typical performance measured at 25°C
Frequency Range
(MHz)
Linearity
(% Max)
Pulling 
(MHz Max)
Frequency
Drift
(MHz Max)
Phase Noise
@ 25°C
Harmonics
(dBc Max)
O/P Power
(dBm Min)
Power SuppliesPackage Style
(100 KHz dBc/Hz Max)(1 MHz dBc/Hz Max)(+15V mA Max)(-15V mA Max)
4000-4500 ±5 2 30 -106 -126 -12 +13 75 75 VCO A
4250-4750 ±5 2 30 -106 -126 -12 +13 75 75 VCO A
4500-4750 ±5 2 30 -106 -126 -12 +13 75 75 VCO A
4750-5250 ±5 2 30 -106 -126 -12 +13 75 75 VCO A
5000-5500 ±5 2 30 -106 -126 -12 +13 75 75 VCO A
5250-5750 ±5 2 30 -106 -126 -12 +13 75 75 VCO A
5500-6000 ±5 5 30 -100 -120 -12 +13 75 75 VCO A
5750-6250 ±5 5 50 -100 -120 -12 +13 75 75 VCO A
5750-6250 ±5 5 50 -100 -120 -12 +20 225 75 VCO B
6000-6500 ±5 5 50 -100 -120 -12 +13 75 75 VCO A
6000-6500 ±5 5 50 -100 -120 -12 +20 225 75 VCO B
6250-6750 ±5 5 50 -100 -120 -12 +13 75 75 VCO A
6250-6750 ±5 5 50 -100 -120 -12 +20 225 75 VCO B
6500-7000 ±5 5 50 -100 -120 -12 +10 75 75 VCO A
6500-7000 ±5 5 50 -98 -118 -12 +20 225 75 VCO B
6750-7250 ±5 5 50 -98 -118 -12 +10 75 75 VCO A
6750-7250 ±5 5 50 -98 -118 -12 +20 225 75 VCO B
7000-7500 ±5 5 50 -98 -118 -12 +10 75 75 VCO A
7000-7500 ±5 5 70 -98 -118 -12 +20 225 75 VCO B
7250-7750 ±5 5 70 -98 -118 -12 +10 75 75 VCO A
7250-7750 ±5 5 70 -98 -118 -12 +20 225 75 VCO B
7500-8000 ±5 5 70 -98 -118 -12 +10 75 75 VCO A
7500-8000 ±5 5 70 -98 -118 -12 +20 225 75 VCO B
7750-8250 ±5 5 70 -98 -118 -12 +10 75 75 VCO A
7750-8250 ±5 5 70 -98 -118 -12 +20 225 75 VCO B
8000-9000 ±10 5 80 -95 -115 -12 +10 75 75 VCO A
8000-9000 ±10 5 80 -95 -115 -12 +20 225 75 VCO B
8500-9500 ±10 5 80 -95 -115 -12 +10 75 75 VCO A
8500-9500 ±10 5 80 -95 -115 -12 +20 225 75 VCO B
9000-10000 ±10 5 80 -95 -115 -12 +10 75 75 VCO A
9000-10000 ±10 5 80 -95 -115 -12 +20 225 75 VCO B
* Specification (guaranteed to -45°C to +85°C unless stated. Load impedance 50 ohm)
1. Frequency Pushing 100 KHz/V for voltages -13 to -18V (max)
2. Spurious Output -60 dBc max
3. Tuning Voltage 0 to +16V
4. Settling Time 1µS from 50% VT to ±3 MHz of final frequency (typical)
5. Output Power Variation ±2.5 dB max (all causes)
6. Operating Temperature Range -55°C to +85°C
7. Storage Temperature Range -55°C to +100°C
8. Pulling is specified into 1.5:1 VSWR and phase
9. Case size (excluding connectors) VCO A 46 x 27 x 10 mm VCO B 46 x 35 x 10 mm
Gold Substrates
  • Gold Substrate Film yields Lower Loss and enhances Phase Noise Performance.
Low Junction Temperatures
  • Ceramic and Metal Construction provides Low Junction Temperatures, Higher MTBF, and Wider Temperature Operating Range.
Added Temperature Stability
  • For an added level of temperature stability, we add Thermistors on all VCO designs.
High Output Power
  • We use Bipolar Transistors to achieve Low Phase Noise and High Output Power.
  • Screening to MIL-STD-883B is available.
Lowpass Filtering
  • We integrate a unique Low Pass Filter for Superior Harmonic Performance.