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Mouser
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Digi-Key
- Digi-key - Development board simplifies evaluation of 100V eGaN FETs
- Digi-key - Microcontroller board is based on the Atmel SAM3X8E ARM Cortex-M3 CPU
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Farnell element14
- Farnell element14 - High-performance heavy-duty connectors satisfy demanding applications
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- Farnell element14 - Portable analog circuit design kit uses PC to keep costs down
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- Farnell element14 - New MOSFETs increases power-density up to 50 percent
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RS Components
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- RS - High-performance surface-mount capacitors s decoupling and filtering needs
- RS - Ready-to-use development kit features M24LR04E-R dual-interface EEPROM IC
- RS - Combo connectors save space by combining two ports into one footprint
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- RS - Ultra low power non-volatile FPGA family offers four devices with densities from 384 to 7680 LUTs
Semiconductors
Analog – Industy’s fastest digital synthesizers integrate 14-bit DACs
Jan 15 2007 - Semiconductors [More Semiconductors Articles]With on-chip 14-bit digital-to-analog converters (DACs) – Analog Devices has announced that it has more than doubled the clock speed of direct digital synthesizer (DDS) integrated circuits (ICs)
The company’s DDS ICs use digital technology to synthesize analog waveforms, used in a wide range of frequency-agile applications, such as wireless base stations, military and commercial radar, test equipment and secure communications systems. The AD9910 and AD9957 are the first DDS devices to achieve speeds of 1 giga samples per second (GSPS), while lowering power consumption by more than 50 percent, ensuring the DDS ICs meet the requirements of a broad range of communications, instrumentation and defence applications, says the company.
The 1GSPS operating speed combined with the 14-bit DAC resolution of the AD9910 DDS allows communications, defence and instrumentation system engineers to improve dynamic performance for output frequencies to 400 megahertz (MHz). For wireless and wired systems, the AD9957 DDS modulator or quadrature digital upconverter (QDUC) simplifies data transmission by offering real outputs up to intermediate frequencies of 400MHz.
“Increasing clock speeds to 1GSPS on high-resolution DDS ICs allows our customers to generate higher output frequencies with improved dynamic performance,” said Kevin Kattmann, product line director, High Speed Signal Processing Group, Analog Devices. “The new DDS products represent a significant step forward, providing 8dB to 12dB better spurious free dynamic range (SFDR) when compared to previous generations. By improving SFDR and reducing the DDS core power consumption, ADI continues to expand the number of markets that can take advantage of digital synthesis solutions.”
The AD9910 and AD9957 are the first devices developed on a new, low-power DDS core that consumes only one-tenth the power of previous generation cores. Patented technology licensed from Pentomics, a California-based company that specializes in circuit design and signal processing for digital communications, was instrumental in helping reduce core power consumption, says the company.
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