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Spectrum Microwave offers a complete line of Digitally Tuned Oscillators (DTO). These custom designed assemblies consist of a select number of sub-band VCOs covering customer specific frequency ranges between 2GHz and 18GHz. The sub-band RF outputs are selectively switched to a common RF output port. Sufficient sub-band overlap insures full band coverage. Digital tuning is via a 16 bit, parallel input word. Several bits are used for selecting the desired sub-band and 12 to 14 bits are used for frequency tuning.

Silicon semiconductors are used to provide the best possible phase noise and post tuning drift performance. Hybrid MIC technology reduces overall package size and helps ensure overall system reliability. Fast settling time and excellent spectral purity make Spectrum DTOs ideal for simulators and other EW applications.

特点

Fast settling time (< 1 msec)
Wide frequency range (2-18 GHz)
Low post tuning drift (<4 MHz @ 1 msec)
Low spurious output (< -60 dBc)
Harmonics (-25 dBc max)
Excellent phase noise performance
(<-65 dBc/Hz @ 100 kHz)
Low residual FM (<-20 dBc @ 100 kHz)
RF output power (+10 to +16 dBm)
High reliability for military applications
Output connectors (customer specified)

产品名称：	倍频器


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应用

Spectrum Microwave offers a line of low noise frequency multipliers based on multiple passive doubler/amplifier combinations. These custom designed assemblies cover input frequency ranges of 5 to 500 MHz with output frequencies in the range of 100 to 1000 MHz. Narrowband or broadband devices are available. Additive phase noise testing ensures low phase noise/jitter performance. All internal amplifiers and doublers are contained in rugged TO-8 hermetic packages for excellent performance over military environmental conditions.

特点

● Low additive noise (-146 dBc/Hz 10 KHz offset X8 multiplication)

● Low harmonic and sub harmonic content (-60 dBc)

● Low discrete Spurious (-75 dBc integrated over a 10 MHz Bandwidth)

● High reliability (200,000 hour MTBF Naval Sheltered)

● Output filtering

● Digital ECL outputs (single or differential)

● Built in test power detectors

● Internal voltage regulation

重要技术参数

Typical Performance Characteristics

Input Frequency Range .	5 – 500 MHz
Output Frequency Range	100 – 1000 MHz
Bandwidth	2%
Pin	10 dBm
Pout	0 dBm
ECL Differential Delay	≥ 100 ps
Harmonics	≤ -50 dBc
Sub-Harmonics	≤ -70 dBc
Phase Noise	-146 dBc/Hz@1kHz
	-158 dBc/Hz@10kHz
	-158 dBc/Hz@100kHz
Input Power	+5 VDC and +15 VDC @ 60 mA
Package Size	4" x 4" x 1.5"

产品名称：	GPS低噪声放大器 LNA


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	应用

	Spectrum offers a complete line of Filtered GPS Low Noise Amplifiers, which are ideal for applications where higher reliability is critical. These filtered low noise amplifiers are designed to reduce out-of-band interference while achieving high dynamic range.

	特点

	● Nickel plated package ● Your choice of SMA, N, or TNC connectors ● Coaxial or External Bias Connection ● Bias options include 5 VDC, 5-16 VDC, and 16-32VDC

	重要技术参数



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产品名称：	谐波发生器


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应用

The 310-027023-01 Harmonic Multiplier provides the system designer with a compact, low phase noise building block for Reference Oscillator multiplication applications.

A linear amplifier drives a step recovery diode thereby multiplying an input 100 MHz clock signal by a factor of 26. A pair of 3-pole ceramic Bandpass filters and a pair of linear driver amplifiers improves the spurious response.

This unit exhibits very little degradation of input reference signals, multiplying to the desired output frequency while only degrading the input phase noise performance by 30 dB.

特点

Low Spurious -60 dBc to 6 GHz max
Buffered Input
Low Phase noise floor -130 dBc/Hz at 10 kHz
Lightweight aluminum housing
SMP style connectors
Wide operating temperature range
Integral voltage regulation
Conduction cooled

重要技术参数

Typical Performance Characteristics

Input Frequency	100 MHz
Input Level	+10 dBm +/-0.1 dBm
Output Frequency	2600 MHz
Output Level	+17 dBm +/-2 dBm
VSWR	2.0:1
Spurious	60 dBc (to 6 GHz)
Phase Noise Degradation	1.7 dB (above 28.3 dB ideal)
DC Power	+12V @ 500 mA typ
Temperature Range	-40°C to +85°C
Weight	4.8 oz max
All specifications above measured at 25°C

Performance Charts

Harmonic Multiplier Spectral Purity (Close Spectrum @ 25°C)	Harmonic Multiplier Spectral Purity (Wide Spectrum @ 25°C)


Harmonic Multiplier Spectral Purity (Close Spectrum @ -40°C)	Harmonic Multiplier Spectral Purity (Close Spectrum @ 85°C)

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Dimensions

产品名称：	转换滤波器组


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Spectrum Microwave’s 7-Channel RF Pre-selector filter provides 7 selectable RF filter channels with Ultimate Rejections out to 18 GHz. Modular construction allows customization of band splits to provide continuous overlapping band performance.

Channels 1 thru 6 are Miniature Lumped Element Bandpass Filters while Channel 7 is an Interdigital Cavity Filter. This low-profile Filter Bank provides Excellent Low-Ripple Passband Performance while Suppressing Ultimate Rejections by 70 dB out to 20GHz.

Three control pins provide TTL selection of the desired operating channel. The unit is bi-directional with SMA field removvable connectors TBD L x 3.10” W x 0.35” H excluding SMA connectors and control pins. Final length depends upon customer requirements for filter performance.The chassis is machined aluminum with a silver plate finish. Control pins are .030” dia.

特点

Typical specifications

Frequency Range	100 – 7000 MHz
Switching Speed	200 nsec
Input 1 dB Comp	+15 dBm
Amplitude Ripple	0.5 dB
IP3	44 dBm
VSWR	1.8:1 max
Insertion Loss	9 dB
Switching Type	TTL
DC Power	5V @ 50 mA
DC Power	-5V @ 45 mA
Temp Range	-10oC to +65oC

Block diagram

重要技术参数

订货信息

Outline drawing

产品名称：	DDS直接数字频率合成器


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	应用

	Spectrum Microwave’s synthesizers offer wide bandwidth, multiple step size options, fast switching speed, and low phase noise combined with the cost advantages of standardized packages. Frequency control options include Serial/parallel inputs, BCD/Binary format, or traditional thumbwheel switches. Spectrum also offers a several different options for locking to a specific source. The customer may choose internal reference crystal oscillators or low ppm OCXO’s. External reference frequencies can range from 10-100 MHz, depending on the customer’s system. These synthesizers feature rugged construction and the latest circuit techniques which makes them suitable for either military or commercial applications. Spectrum Microwave also designs and manufactures custom Direct Digital Synthesizer signal sources from 10 MHz to 14 GHz. Our designs use an embedded microcontroller which digitizes the analog control voltage (or reads the digital tuning word), then calculates and loads proper control words into the registers of the DDS.

	特点

	● 10 MHz to 14 GHz output ● Exceptional Low phase noise ● Low spurious outputs ● Internal and external reference models ● Step Size typically 1 kHz to 10 MHz ● Parallel and serial control interfaces ● High reliability

	重要技术参数



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产品名称：	FMO倍频振荡器


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	Spectrum Microwave’s line of Master reference oscillators (MROs) is vibration hardened ultra low noise Crystal oscillators intended for an airborne military application. The Frequency Multiplier Oscillator (FMO) is a compact 21 channel synthesized signal generator that provides transmit and LO signals for L-band and S-Band airborne radar systems. This design incorporates a unique isolation system for exceptional phase noise performance during vibration.

	特点

	● 21 Transmit channels ● 21 first LO channels ● 195 MHz fixed second LO. ● 5 MHz fixed third LO ● 5 MHz differential TTL processors clock ● All signals are coherent to an internal reference ● Frequency accuracy +/- 0.3 PPM after an 8 minute warm-up ● Residual FM noise measured 100% ● Biphase modulation on transmit and first LO ● Output Power 27 dBm min ● Output Frequency “L” through “S” Band ● Frequency Switching Time <50 ms

产品名称：	MRO控制基准振荡器


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应用

Spectrum Microwave’s line of Master reference oscillators (MROs) is vibration hardened ultra low noise Crystal oscillators intended for an airborne military application.

特点

● SC cut crystal for stability and low noise.

● Ovenized oscillator has a less than 10-minute warm-up to achieve 0.5 PPM accuracy.

● Integrated doublers (x2 and x4), amplifier, built in power test, and band pass filter circuits.

● TTL oven ready indicator.

● Internal voltage regulation to minimize pushing.

● Low resonance (<10 Hz) vibration isolation system to minimize the effects of vibration on phase noise performance.

重要技术参数

Typical Performance Characteristics

Frequency	60 – 480 MHz
Output power level	+20 dBm
Aging	+/-1PPM per year after 30 days operation
Harmonics	-40 dBc
Spurious	-90 dBc max in a +/-2 MHz B.W. about 160 MHz -75 dBc from +/-2 MHz to +/-20 MHz about 160 MHz
Temperature stability	+/- 0.5 PPM , -20 to +60° C, REF +25° C
Dimensions	6.75" x 5" x 2.688"
Connector RF	SMA female
Connector E-tune	SMA Female
DC and Bits	Male 9 pin D connector
Packaging	Machined aluminum housing Nickel plated per MIL-C-26074
DC power	15 V
DC current	1.5 A during warm up 0.5 A after warm up
VSWR	1.5:1 max @160 MHz into a 50 ohm system

Phase Noise (60 MHz – 120 MHz output frequency)

Offset Freq Hz

Static Noise dBc/Hz

Dynamic Noise dBc/Hz

10

-100

-84

100

-131

-116

1000

-158

-152

10K

-173

-172

20K

-176

-176

1Meg

-176

-176

Phase Noise (120 MHz – 240 MHz output frequency)

Offset Freq Hz

Static Noise dBc/Hz

Dynamic Noise dBc/Hz

10

-95

-78

100

-125

-110

1000

-152

-146

10K

-167

-166

20K

-170

-170

1Meg

-170

-170

Phase Noise (240 MHz – 480 MHz output frequency)

Offset Freq Hz

Static Noise dBc/Hz

Dynamic Noise dBc/Hz

10

-89

-72

100

-119

-104

1000

-146

-140

10K

-161

-160

20K

-164

-164

1Meg

-164

-164

订货信息

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