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AD9144BCPZ Datasheet(PDF) 1 Page - Analog Devices |
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AD9144BCPZ Datasheet(HTML) 1 Page - Analog Devices |
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1 / 125 page  Quad, 16-Bit, 2.8 GSPS, TxDAC+® Digital-to-Analog Converter Data Sheet AD9144 Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2014–2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Supports input data rate >1 GSPS Proprietary low spurious and distortion design 6-carrier GSM IMD = 77 dBc at 75 MHz IF SFDR = 82 dBc at dc IF, −9 dBFS Flexible 8-lane JESD204B interface Support quad or dual DAC mode at 2.8 GSPS Multiple chip synchronization Fixed latency Data generator latency compensation Selectable 1×, 2×, 4×, 8× interpolation filter Low power architecture Input signal power detection Emergency stop for downstream analog circuitry protection Transmit enable function allows extra power saving High performance, low noise phase-locked loop (PLL) clock multiplier Digital inverse sinc filter Low power: 1.6 W at 1.6 GSPS, 1.7 W at 2.0 GSPS, full operating conditions 88-lead LFCSP with exposed pad APPLICATIONS Wireless communications 3G/4G W-CDMA base stations Wideband repeaters Software defined radios Wideband communications Point-to-point Local multipoint distribution service (LMDS) and multichannel multipoint distribution service (MMDS) Transmit diversity, multiple input/multiple output (MIMO) Instrumentation Automated test equipment GENERAL DESCRIPTION The AD9144 is a quad, 16-bit, high dynamic range digital-to- analog converter (DAC) that provides a maximum sample rate of 2.8 GSPS, permitting a multicarrier generation up to the Nyquist frequency. The DAC outputs are optimized to interface seamlessly with the ADRF6720 analog quadrature modulator (AQM) from Analog Devices, Inc. An optional 3-wire or 4-wire serial port interface (SPI) provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a typical range of 13.9 mA to 27.0 mA. The AD9144 is available in an 88-lead LFCSP. TYPICAL APPLICATION CIRCUIT QUAD DAC AD9144 QUAD MOD ADRF6720 LPF 0°/90° PHASE SHIFTER JESD204B SYSREF± SYNCOUTx± LO_IN MOD_SPI DAC DAC QUAD MOD ADRF6720 LPF 0°/90° PHASE SHIFTER JESD204B SYNCOUTx± LO_IN MOD_SPI DAC SPI CLK± DAC DAC Figure 1. PRODUCT HIGHLIGHTS 1. Greater than 1 GHz, ultrawide complex signal bandwidth enables emerging wideband and multiband wireless applications. 2. Advanced low spurious and distortion design techniques provide high quality synthesis of wideband signals from baseband to high intermediate frequencies. 3. JESD204B Subclass 1 support simplifies multichip synchronization in software and hardware design. 4. Fewer pins for data interface width with a serializer/ deserializer (SERDES) JESD204B eight-lane interface. 5. Programmable transmit enable function allows easy design balance between power consumption and wake-up time. 6. Small package size with 12 mm × 12 mm footprint. |
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