CDK5560-2

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The CDK5560-2 is a highly accurate, low noise evaluation board designed to evaluate TI\'s 16-bit, 250 MS/s successive approximation register (SAR) analog-to-digital converters (ADC) family. The board is intended for engineers in the research and design stages of their ADC project in various applications.

The CDK5560-2 is intended for use in commercial, industrial, and consumer applications that benefit from its high performance, low power consumption, and robust features. It features three low-noise amplifier (LNA) channels and two pulse regeneration channels that are configurable for either system-on-chip (SoC) mode or single-ended +5V operations. It also features two on-board test ports which enable users to measure the performance of their ADC in real time.

The board\'s low noise amplifier (LNA) circuitry, complete 50Ω input impedance matches the input impedance of the ADC to ensure optimal ADC performance. The LNA\'s gain and output impedance can be adjustable, allowing users to tailor the signal conditioning for their application. Its low input bias current compensates for a wide range of input voltages, making the CDK5560-2 suitable for applications that require extremely low noise operation and dynamic range.

The CDK5560-2 also features a direct digital synthesis (DDS) circuit, which provides a single-ended sine and triangular waveform outputs for ADC physical layer testing. This allows designers to evaluate the ADC performance in various frequency and noise conditions without the need for external sources. With the on-board mixed-mode circuit, it is also possible to generate multiple digital signal types such as pulse-width-modulated (PWM) signals and frequency-shift keying (FSK) signals. Furthermore, all output signals from the DDS block are routed over the TI evaluation board, enabling users to easily monitor and inspect the ADC performance in their circuit designs.

The board also features two active low-level voltage regulator circuits which allow ADC performance to be evaluated independently for three user-defined supply voltages. The two regulator circuits minimize power and thermal dissipation while providing reliable device supply with low output noise. The DC voltage output of the CDK5560-2 is adjustable and can be set to any voltage level within the range of 0-2V.

The CDK5560-2 provides users with an efficient development platform for evaluating TI’s 16-bit, 250 MS/s SAR ADC family. The board’s low noise amplifier (LNA) block provides a configurable input impedance for optimal ADC performance, while its on-board direct digital synthesis (DDS) signal generation circuit enables users to evaluate the ADC performance in a variety of noise and frequency conditions. The two active low-level voltage regulator circuits allow users to operate the board under three different supply voltages without additional noise or power dissipation. With its robust features and high performance, the CDK5560-2 is an ideal choice for engineers looking to efficiently evaluate the performance of TI’s 16-bit SAR ADC family.

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