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DAC34H84IZAYR Scheda tecnica(PDF) 1 Page - Texas Instruments |
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DAC34H84IZAYR Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 80 page DAC34H84 www.ti.com SLAS751B – MARCH 2011 – REVISED SEPTEMBER 2011 Quad-Channel, 16-Bit, 1.25 GSPS Digital-to-Analog Converter (DAC) Check for Samples: DAC34H84 1 FEATURES DESCRIPTION The DAC34H84 is a very low power, high dynamic • Very Low Power: 1.4 W at 1.25 GSPS range, quad-channel, 16-bit digital-to-analog • Multi-DAC Synchronization converter (DAC) with a sample rate as high as 1.25 • Selectable 2x, 4x, 8x, 16x Interpolation Filter GSPS. – Stop-Band Attenuation > 90 dBc The device includes features that simplify the design • Flexible On-chip Complex Mixing of complex transmit architectures: 2x to 16x digital interpolation filters with over 90 dB of stop-band – Two Independent Fine Mixers with 32-bit attenuation simplify the data interface and NCOs reconstruction filters. Independent complex mixers – Power Saving Coarse Mixers: ± n×Fs/8 allow flexible carrier placement. A high-performance • High Performance, Low Jitter Clock low jitter clock multiplier simplifies clocking of the device without significant impact on the dynamic Multiplying PLL range. The digital Quadrature Modulator Correction • Digital I and Q Correction (QMC) enables complete IQ compensation for gain, – Gain, Phase, Offset, and Group Delay offset, phase and group delay between channels in Correction direct up-conversion applications. • Digital Inverse Sinc Filters Digital data is input to the device through a 32-bit • 32-Bit DDR Flexible LVDS Input Data Bus wide LVDS data bus with on-chip termination. The wide bus allows the processing of very high – 8 Sample Input FIFO bandwidth signals. The device includes a FIFO, data – Supports Data Rates up to 625 MSPS pattern checker and parity test to ease the input – Data Pattern Checker interface. The interface also allows full synchronization of multiple devices. – Parity Check • Temperature Sensor The device is characterized for operation over the entire industrial temperature range of –40°C to 85°C • Differential Scalable Output: 10mA to 30mA and is available in a 196-ball, 12x12mm, 0.8mm pitch • 196-Ball, 12x12mm BGA (GREEN / Pb-Free) BGA package. The DAC34H84 very low power, high bandwidth APPLICATIONS support, superior crosstalk, high dynamic range and • Cellular Base Stations features are an ideal fit for next generation • Diversity Transmit communication systems. • Wideband Communications spacing spacing spacing spacing spacing These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2011, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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