FUNCTIONAL

682XXB/683XXB

DESCRIPTION

MAJOR SUBSYSTEMS

used to fine tune and phase lock the YIG-tuned oscillator. The A11 PCB also contains circuitry for frequency modulation of the YIG-tuned os- cillator RF output.

 

The CPU sends control data to the A3 Reference

 

Loop PCB, the A4 Coarse Loop PCB, and the A5

 

Fine Loop PCB via the A16 PCB as serial data

 

words. The CPU controls the A11 FM PCB via the

 

dedicated data and address bus. Refer to paragraph

 

2-3 for a functional overview of the frequency syn-

 

thesis subsystem.

Analog

The A12 Analog Instruction PCB provides the fre-

Instruction

quency tuning voltages and frequency band select

 

signals to the A13 YIG Driver PCB. For models with

 

a frequency range greater than 20 GHz, it supplies

 

frequency band select signals to the A14 SDM, SQM

 

Driver PCB. In addition, it provides a 0V to +10V

 

ramp signal to the rear panel HORIZ OUT connector,

 

a V/GHz signal to the rear panel V/GHz OUT connec-

 

tor, and a SLOPE signal to the A10 ALC PCB for

 

slope-vs-frequency correction of the RF output

 

power. The CPU controls the A12 Analog Instruc-

 

tion PCB via the dedicated data and address bus.

NOTE

When Option 6 (phase modulation) is installed, the A8 Function Gen- erator uses its internal FM genera- tor to provide the available wave- forms for both frequency and phase modulation.

YIG Driver The A13 YIG Driver PCB supplies the main tuning current and bias voltages for the 2 to 20 GHz YIG- tuned oscillator. It also provides bias voltages for the Down Converter assembly and the amplifiers lo- cated in the Switched Filter assembly.

The A12 Analog Instruction PCB provides (1) fre- quency tuning voltages for the main tuning coil driver of the YIG-tuned oscillator and (2) frequency band select signals to activate the appropriate bias voltage supply.

Function The A8 Function Generator PCB provides internally

Generator generated waveforms for amplitude and frequency modulation. The waveforms available are sine wave, square wave, triangle wave, positive ramp, negative ramp, Gaussian noise, and uniform noise. The AM waveforms are supplied to the A10 ALC PCB and the rear panel AM OUT connector; the FM wave- forms are provided to the A11 FM PCB and the rear panel FM OUT connector. The CPU controls the A8 Function Generator PCB via the dedicated data and address bus.

682XXB/683XXB MM

2-5

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Anritsu 683XXB, 682XXB manual Analog
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682XXB, 683XXB specifications

The Anritsu 683XXB and 682XXB series are advanced vector network analyzers (VNAs) renowned for their precision and versatility in characterizing RF and microwave components. Designed for engineers and technicians involved in the development, manufacturing, and testing of high-frequency devices, these analyzers offer state-of-the-art technology that ensures optimal performance in various applications.

One of the hallmark features of the Anritsu 683XXB and 682XXB is their high dynamic range, which allows for accurate measurements of small reflection and transmission coefficients, essential for assessing the performance of complex RF structures. With frequency coverage extending from DC to 70 GHz, these analyzers cater to a broad spectrum of applications, making them suitable for industries such as telecommunications, aerospace, and automotive.

The user-friendly interface of the Anritsu VNAs is complemented by a high-resolution display, which facilitates easy navigation through measurement setups and results. The analyzers feature multiple measurement modes, including S-parameter measurements, time-domain analysis, and noise figure measurements, providing engineers with comprehensive tools for device characterization.

Both the 683XXB and 682XXB implement advanced calibration techniques, including automated calibration and error correction methods, to enhance measurement accuracy. These methods significantly reduce the uncertainties associated with test setups, enabling reliable performance evaluations of components like filters, amplifiers, and antennas.

Anritsu’s proprietary technologies, such as the VectorStar and ShockLine series integration, further empower the 683XXB and 682XXB models. These technologies enable high-throughput testing and improved measurement stability, addressing the needs of modern production environments that demand rapid turnaround times without sacrificing precision.

Additionally, the analyzers come equipped with various connectivity options, including USB, LAN, and GPIB, ensuring seamless integration into automated test systems. This adaptability enhances the analyzers' utility in both laboratory settings and field operations.

In conclusion, the Anritsu 683XXB and 682XXB series vector network analyzers represent the pinnacle of RF and microwave testing technology. With their unmatched precision, comprehensive measurement capabilities, and advanced calibration techniques, these instruments are indispensable tools for professionals striving to push the boundaries of high-frequency device performance and reliability.
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