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Сетевые анализаторы (Векторные Сетевые анализаторы - VNA)

Описание:
Reference Design for a Low Power Fully Differential Programmable Gain Amplifier using the TI OPA2683 Low Power Dual Current Feedback Amplifier. This design guide reviews some of the design challenges necessary to create such a circuit. The design guide reviews the results and provides some recommendations for using/designing a Low Power FDA PGA.

Возможности:

Low Power Fully Differential Amplifier Low Power Programmable Gain Amplifier Wide Bandwidth Relative to High Gain +/-5V supply voltage Gains of 2, 21, 50, and 70 V/V This reference design has been lab tested and is supported with design files and a design guide

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Описание:
This reference design is a guide to the schematics and layout for the system designer using a GSPS ADC in their system. Use this reference design along with the datasheet — the datasheet is always the final authority. Also, the ADC1xDxxxx(RF)RB Reference Board provides a useful reference design. All design source files for the Reference Board as well as the CAD/CAE symbols for the ADC are available on the product web page or TI-Designs for download. For the purpose of this document, ADC or GSPS ADC refers to the ADC12D1800RF, ADC12D1600RF, ADC12D1000RF, ADC12D800RF, ADC12D500RF, ADC12D1800, ADC12D1600, ADC12D1000, ADC10D1500, ADC10D1000, ADC12D1600QML, and ADC10D1000QML.

Возможности:

Analog Input, clock input and Power design issues are discussed Layout concerns on synchronisation of multiple devices Understand the key care abouts of GSPS ADC schematic and layout design Examples are provided in the form of the design layout files

Документация:
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  • Топология платы
Описание:
JESD204B links are the latest trend in data-converter digital interfaces. These links take advantage of high-speed serial-digital technology to offer many compelling benefits including improved channel densities. This reference design addresses one of the challenges of adopting the new interface: understanding and designing the link latency. An example achieves deterministic latency and determines the link latency of a system containing the Texas Instruments LM97937 ADC and Xilinx Kintex 7 FPGA.

Возможности:

Guarantee deterministic latency across the JESD204B link Understand the tradeoff between link latency and tolerance to link delay variation Use a formulaic and procedure-based approach to design the link latency Implement a JESD204B link using Texas Instruments' ADC16DX370 or LM97937 ADC and a Xilinx Kintex 7 FPGA

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  • Топология платы
  • Тестирование
Описание:
The TPS53355 Inductor-On-Top step-down buck converter design enables high power density through reduction of X-Y PCB area and results in >86% efficiency with only 1.8W of power loss and 6mV of output voltage ripple requiring only 5x100uF ceramic output caps.

Возможности:

• >86% Efficiency at 12VIN, 1Vout, 650KHz • 1.8W power loss at 12.6W Output Power • 6mV Output Voltage Ripple • 2.4mV Output Voltage Overshoot in response to 3A to 6A load step, 2.5A/us • 2.2mV Output Voltage Undershoot in response to 6A to 3A load release, 2.5A/us • 39 total components including IC • >86% Efficiency at 12VIN, 1Vout, 650KHz • 1.8W power loss at 12.6W Output Power • 6mV Output Voltage Ripple • 2.4mV Output Voltage Overshoot in response to 3A to 6A load step, 2.5A/us • 2.2mV Output Voltage Undershoot in response to 6A to 3A load release, 2.5A/us • 39 total components including IC

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Описание:
This board allows the LMH5401 to be used as a low gain amplifier or as an attenuator.

Возможности:

DC coupled Minumum gain of 0.5V/V Split Supply voltage 6 GHz Bandwidth

Документация:
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Описание:
The TPS53515 Inductor-On-Top Step-Down Buck Converter reference design enables reduction of X-Y area while enabling >87% efficiency with 2.6W of power loss @12A load and 12mV of output voltage ripple with only 10x22uF ceramic output caps. This power reference design supports a 12V input and a 1.2V output at 12A and switches at 1MHz.

Возможности:

• >87% Efficiency at 12VIN, 1.2Vout, 1MHz • 2.6W power loss at 11.8W Output Power • 12mV Output Voltage Ripple at 5A and 1MHz Fsw • 16mV Output Voltage Overshoot in response to 5A to 10A load step, 2.5A/us • 17mV Output Voltage Undershoot in response to 10A to 5A load release, 2.5A/us

Документация:
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  • Тестирование
Описание:
A wideband single-ended to differential conversion reference design in both DC- and AC- coupled applications is presented. The design evaluates the performance of the LMH5401 and LMH6401 cascade and offers insight into the design.

Возможности:

4.5GHz bandwidth with 30dB maximum total voltage gain Digitally-controlled gain range of 32dB in 1dB steps 50-Ω Input DC- or AC-coupled single-ended to differential conversion Output IP3 at RL = 200Ω: 40dBm at 500MHz 33dBm at 1GHz Output common-mode control capability: VMID ±0.5V Compact design ideal for portable application with PD = 645mW

Документация:
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Описание:
This board cascades two LMH5401 or LMH3401 amplifiers for more gain or more DC common mode shift.

Возможности:

DC coupled Two LMH5401 (0r 3401) amplifiers Independent supplies for each amplifier Up to 8 GHZ Bandwidth Gain to 20dB or higher Single or split supply

Документация:
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  • Топология платы
Описание:
The TIDA-01346 design uses two LMX2594 synthesizers in combination to produce lower noise than is possible with just one. By combining the output of two synthesizers that are in phase, a theoretical 3 dB phase noise benefit is possible due to the output power being 6 dB higher while the noise power is only 3 dB higher. The LMX2594 is an ideal synthesizer for this application as it has a SYNC feature that allows it to have deterministic and repeatable phase as well as a programmable phase that can be used to correct for any phase error due to trace mismatches or any other factors.
Возможности:

3 to 12.5 GHz Output Frequency 40-fs rms Jitter at 9GHz (100 Hz to 100 MHz)

Документация:
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Описание:
The TIDA-01405 design demonstrates an inverting power module (voltage inverter) to generate a –1.8V rail at up to 2A of current from a 3V to 15.2V input voltage. Such a negative voltage is required for many communications equipment systems as well as industrial equipment, such as test and measurement. Using the TPS82130 power module enables a very simple negative voltage inverter (inverting buck-boost) design to create a 1.8V negative output voltage at high 2A currents.
Возможности:

Simple Power Module Design Total Solution Size Less Than 50mm2 High Output Current of 2A (VIN ≥ 5V) Wide Input Voltage Range of 3V to 15.2V Low Noise (Less Than 10mV Output Ripple) 125°C Rated Solution

Документация:
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Описание:
The TIDA-01410 reference design uses two LMX2594 synthesizers to produce two outputs that are both coherent and adjustable in phase. Phase coherent outputs are useful for interleaving data converters and also for beam steering applications. This reference design has identical routing for both synthesizers so that it is easy to measure the phase between them.

Возможности:

Two outputs with coherent and adjustable phase Output frequency from 10 MHz to 15 GHz High output power

Документация:
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Описание:

В некоторых случаях осциллограф или логический анализатор не позволяют измерить очень низкий уровень шума. Данное решение позволяет усилить уровень шума на выходе тестируемого устройства до уровня, достаточного для измерения стандартными измерительными приборами. Основной особенностью данного решения является низкий собственный уровень шума и достаточная пропускная способность для измерения характеристик большинства устройств.

 

Возможности:

  • Тестовая схема для усиления шума выше порога чувствительности измерительного прибора
  • Полоса пропускания от 0.016 Гц до 443 кГц

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