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Product Data Sheet

Model 805-M Ultra-Agile Frequency Synthesizer

A small, flange-mount module that generates accurate, stable CW and pulse signals from 100 kHz to 22 GHz. Fast 5 µs switching, low phase noise, and phase-coherent master-slave cascading make it suited to multi-channel radar, beamforming, and electronic warfare work. The module weighs under 0.5 kg, draws barely 17 W, and is passively cooled.

Data Sheet · Model 805-M · 100 kHz to 22 GHz · V1.13 (dc-11013202)
Berkeley Nucleonics Model 805-M ultra-agile synthesizer

1Overview

The Model 805-M is a compact-size frequency synthesizer for the generation of accurate and stable frequency signal in both CW and pulse form, covering a frequency range of 100 kHz to 22 GHz, with a fast-switching time of 5 µs, the output power of -40 to 25 dBm depending on the frequency. The phase noise at 1 GHz and 20 kHz offset is -132 dBc/Hz, and the subharmonics and spurious lower than -55 dBc. The frequency setting resolution is 10 mHz and for the power 0.5 dB.

The synthesizer is excellently shielded and in a very compact flange-mountable form of 134 x 95 x 25 mm, weighs lighter than 0.5 kg, and consumes barely 17 W and therefore passively cooled. It features ETHERNET communication port for local and remote connection to a PC for control over GUI software or SCPI commands.

The module features external reference support of 100 MHz and 1 GHz. Multiple units can be connected, with one unit acting as the master and the others as slaves, to implement multi-channel phase-coherent sources. The Master reference frequency of 1 GHz is generated once in the master unit and looped through all the slave units. The phase coherence reached is about +/- 0.5 degree over 10 hours when all the channels are set to 5 GHz.

The product is suitable for many applications: as system clock source, in the multi-channel phase-coherent configurations for radar, beamforming, quantum computing, etc. The feature combination of phase coherence and fast switching allows also for applications in Electronic Warfare field.

Definitions. Specifications describe the warranted performance of the instrument for 23 ±5 °C after a 30-minute warm-up period, unless otherwise stated. Min/Max: parameter range guaranteed by product design and/or production tested, including guard-bands for statistical distribution, measurement uncertainties, and environmental conditions. Typical: expected mean values, not warranted performance.

2Key Features & Applications

Features

  • Small size flange-mount module
  • CW and pulse modulation
  • Low phase noise
  • Multi-channel configurable / cascadable: master-slave connection through 1 GHz reference loop-through
  • Phase coherent

Applications

  • System clock source
  • Beamforming, MIMO receiver R&D
  • Electronic Warfare
  • Multi-channel phase-coherent configurations for radar signal generation and testing
  • Spectroscopy

3Signal & Frequency Reference

Signal Specifications

ParameterMinTypicalMaxNote
Frequency Range100 kHz22 GHz
Resolution0.01 HzGUI SW setting resolution
Phase resolution0.1 deg0 to 360 deg
Switching speed in sweep mode500 µs
5 µs		10 µsOption FS

Frequency Reference

ParameterMinTypicalMaxNote
Reference frequency input100 MHz, 1 GHz
Reference input level
100 MHz
1 GHz
-3 dBm
-5 dBm
+10 dBm
+10 dBm
Reference input impedance50 Ω
Reference frequency output
Power2 dBm8 dBm1 GHz
Calibrated accuracy of int. reference±30 ppbcalibrated at 23 ± 3 °C
Temperature stability (0 to 50 °C)±100 ppb
Aging 1st year0.5 ppm
Aging per day5 ppbAfter 30 days operation
Warm-up time5 min
Reference output impedance50 Ω

4Level Performance & Uncertainty

Level Performance

Typical maximum output power versus frequency, 805-M
Figure 1: Typical Maximum Output Power.
ParameterMinTypicalMaxNote
Output Power LevelSee plot
Range
0.1 – 1 GHz
1 – 10 GHz
10 – 18 GHz
18 – 20 GHz
> 20 GHz
-20 dBm
-30 dBm
-20 dBm
-30 dBm
-30 dBm
+25 dBm
+26 dBm
+23 dBm
+21 dBm
+16 dBm
Resolution0.5 dB

Level Uncertainty

Frequency response: level error versus frequency across power settings, 805-M
Figure 2: Frequency Response.
ParameterMinTypicalMaxNote
Power Level uncertainty
0.1 GHz to 20 GHz
< 0.1 GHz or > 20 GHz
±1.5 dB
±1.5 dB

±2 dB		-20 dBm to +20 dBm

Reverse Power Protection and VSWR

ParameterMinTypicalMaxNote
Output impedance50 Ω
VSWR1.7
Reverse power protection
DC voltage7 V
RF power23 dBm

5Phase Noise & Spectral Purity

Phase Noise

SSB phase noise versus offset frequency at 1 GHz and 10 GHz carriers, 805-M
Figure 3: SSB Phase Noise Performance.
ParameterMinTypicalMaxNote
SSB Phase noise at 1 GHzSee also plots
at 10 Hz from carrier-83 dBc/Hz-78 dBc/Hz
at 1 kHz from carrier-120 dBc/Hz-115 dBc/Hz
at 20 kHz from carrier-131 dBc/Hz-126 dBc/Hz
at 10 MHz from carrier-154 dBc/Hz-149 dBc/Hz
SSB Phase noise at 10 GHz
at 10 Hz from carrier-70 dBc/Hz-65 dBc/Hz
at 1 kHz from carrier-102 dBc/Hz-98 dBc/Hz
at 20 kHz from carrier-112 dBc/Hz-107 dBc/Hz
at 10 MHz from carrier-140 dBc/Hz-135 dBc/Hz

Spectral Purity

2nd and 3rd harmonic level versus frequency at 10 dBm output, 805-M
Figure 4: Harmonics at 10 dBm Output.
ParameterMinTypicalMaxNote
Output harmonics
< 4.0 GHz
4.0 – 14 GHz
> 14.0 GHz
-15 dBc
-27 dBc
-60 dBc
-5 dBc
-20 dBc
-40 dBc		Pout = 10 dBm
Sub-harmonics
< 11.0 GHz
11.0 – 20.0 GHz
> 20.0 GHz
-80 dBc
-70 dBc
-65 dBc

-70 dBc
-60 dBc		Pout = 10 dBm
Non-harmonic spurious-65 dBc-55 dBc> 10 kHz offset
Wideband spectrum at 21 GHz output showing low spurious floor, 805-M
Figure 5: Wideband Spectrum at 21 GHz output.

6Modulation

Modulation Capability

ParameterMinTypicalMaxNote
Pulse modulation
Modulation sourceInternal, ExternalTrigger port can be reconfigured as external modulation port
On/off ratio
< 1 GHz
1 GHz to 10 GHz
10 GHz to 19 GHz
> 19 GHz
75 dB
60 dB
55 dB
50 dB
85 dB
70 dB
65 dB
60 dB		At 10 dBm
Repetition frequencyDC10 MHz
Pulse width30 ns20 s
Pulse rise/fall time9 ns
Pulse train length (pulses)14096
External input voltage range-0.5 V+5.5 VTTL compatible
External input hysteresis60 mV
Delay (to RF)20 ns40 ns

7Sweeping & Trigger

Sweeping Capability

ParameterMinTypicalMaxNote
Sweep parametersFrequency, power, list
Sweep typeLinear, logarithmic, random
Step time500 µs
5 µs		20 s
20 s		Option FS
Timing resolution10 ns
Timing accuracy per point20 ns
Generalized list sweepAllows for individual setting of frequency, power, step-time, for each point

Trigger (TRIG)

ParameterMinTypicalMaxNote
Trigger typesContinuous, Single (point), Gated, Gated direction
Trigger sourceExternal
Trigger modesContinuous free run, Trigger and run, Reset and run
External trigger latency140 ns
External trigger uncertainty20 ns
External trigger delay0 s20 sSettable
External delay resolution10 ns
Trigger modulo1255Execute only on Nth trigger event
Trigger polarityRisingFalling
External trigger input threshold0.85 V0.9 V0.95 VTTL compatible
External trigger input voltage range-0.5 V+5.5 VTTL compatible
External trigger input hysteresis60 mV

8Mechanical & Connectors

Dimensions & Weight

Mechanical outline drawing with mounting hole pattern, 805-M
Mechanical outline and mounting pattern (dimensions in mm).
Dimensions / WeightIncluding Connectors
Size / Weight5.28 x 3.74 x 1.00 in [134 x 95 x 24 mm] / 1.0 lbs [0.45 kg]

Installation Instructions

The module relies on passive cooling. It is mandatory to mount the device on a heatsinking surface. Make sure the synthesizer operates under the conditions specified in this datasheet. Otherwise, the thermal protection will turn off the RF output.

Connectors

Front Panel

Front panel with PWR, REM and RF indicators and SMA RF OUT, 805-M
Front panel layout.
LabelTypeDescription
1. PWRLEDPower ON/OFF indicator
2. REMLEDRemote connection status indicator
3. RFLEDRF output ON/OFF indicator
4. RF OUTSMARF output

Rear Panel

Rear panel with DC IN, Ethernet, REF IN, TRIG, RST and REF OUT, 805-M
Rear panel layout.
LabelTypeDescription
1. DC INKPJX-4S (Kycon)DC input (see also “Power Connector Assembly”)
2. ETHRJ-45Ethernet port
3. REF INSMAReference Signal Input
4. TRIGSMATrigger Signal Input
5. RSTButtonReset Button
6. REF OUTSMAReference Signal output

Power Connector Assembly

PinAssignment
1GND
2DC Supply (see also “Power requirements”)
3GND
4DC Supply (see also “Power requirements”)

The power connector is a 4 pin, snap and look receptacle. BNC recommends Kycon manufactured plugs KPPX-4P from its KPPX series.

Reset Functionality

The reset functionality of the device can be used if the device has a wrong configured IP address and cannot be found in the local area network anymore. While pressing the reset button (>2 s), the device will be reconfigured to auto IP addressing mode (DHCP/Zero-conf) and restarts itself. After the device is up and running again, it gets a new IP address and can be discovered by the BNC Signal Generator UI.

9General Characteristics

ParameterSpecification
Remote Programming InterfacesEthernet
Control languageSCPI Version 1999.0
Power requirements24±6 VDC; 17 W maximum
Mains adapter supplied100-240 VAC in / 24 V, 2.7 A DC out
Storage temperature range–40 to 70 °C
Operating temperature range0 to 45 °C; non-condensing
Operating and storage altitudeup to 15,000 feet
Safety/EMCcomplies with applicable Safety and EMC regulations and directives
Recommended calibration cycle24 months

10Ordering Information

Host ModelProductDescription
805-M805-M22 GHz wideband frequency synthesizer module
805-MOption FSFast switching option
805-MOption NOXONo internal reference

To request a quote, contact Berkeley Nucleonics Corporation · info@berkeleynucleonics.com · 415-453-9955 · berkeleynucleonics.com