Low Phase Noise VCXOs
Spectrum Control's low phase noise VCXOs are rugged, high performance, customizable varactor diode-based designs. Key features include:
- Use of thermistors on all VCXO 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 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 |
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| 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 Supplies | Package 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 |
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E52-19422
080-10117-0001
080-22675
E52-1501
FP4
H1
H1L
H2
H2L
H3
H4
H91
HF1
HF2
HF3
HCP1
HCP2
080-22749
SG4
SM3
SM11
SM19
TO-8
TO8
TO-39
MS3C
N
G
L1
MS3AL
MS3BL
MS2TA
MS2TB
L
SG2
SG-1
SM4
DP5
DP8
DP11
H6
T5
T2 TO-5
DP3
FP7
FP11
T9
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.