Quad 16-Bit,1 GSPS, TxDAC+ Digital-to-Analog Converter Data Sheet AD9148 FEATURES GENERAL DESCRIPTION Single-carrier W-CDMA ACLR = 80 dBc at 150 MHz IF The AD9148 is a quad, 16-bit, high dynamic range, digital-to- Channel-to-channel isolation > 90 dB analog converter (DAC) that provides a sample rate of 1000 MSPS. Analog output This device includes features optimized for direct conversion Adjustable 8.7 mA to 31.7 mA transmit applications, including gain, phase, and offset compen- R = 25 to 50 L sation. The DAC outputs are optimized to interface seamlessly with Novel 2, 4, and 8 interpolator eases data interface analog quadrature modulators such as the ADL5371/ADL5372/ On-chip fine complex NCO allows carrier placement ADL5373/ADL5374/ADL5375. A serial peripheral interface (SPI) anywhere in DAC bandwidth is provided for programming of the internal device parameters. High performance, low noise PLL clock multiplier Full-scale output current can be programmed over a range of 8.7 mA Multiple chip synchronization interface to 31.7 mA. The device operates from 1.8 V and 3.3 V supplies Programmable digital inverse sinc filter for a total power consumption of 3 W at the maximum sample Auxiliary DACs allow for offset control rate. The AD9148 is enclosed in a 196-ball chip scale package ball Gain DACs allow for I and Q gain matching grid array with the option of an attached heat spreader. Programmable I and Q phase compensation PRODUCT HIGHLIGHTS Digital gain control 1. Low noise and intermodulation distortion (IMD) enable Flexible LVDS digital I/F supports 32- or 16-bit bus width high quality synthesis of wideband signals from baseband 196-ball CSP BGA, 12 mm 12 mm to high intermediate frequencies. APPLICATIONS 2. A proprietary DAC output switching technique enhances Wireless infrastructure dynamic performance. LTE, TD-SCDMA, WiMAX, W-CDMA, CDMA2000, GSM 3. The current outputs are easily configured for various MIMO/transmit diversity single-ended or differential circuit topologies. Digital high or low IF synthesis 4. The LVDS data input interface includes FIFO to ease input timing. TYPICAL SIGNAL CHAIN COMPLEX BASEBAND COMPLEX IF RF LO f f IF IF DC DIGITAL INTERPOLATION FILTERS 2 2 2 DAC1 POST DAC AQM PA ANALOG FILTER LO 2 2 2 DAC2 FPGA/ASIC/DSP 2 2 2 DAC3 LO POST DAC AQM PA 2 2 2 DAC4 NOTES 1. AQM = ANALOG QUADRATURE MODULATOR. Figure 1. Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 20102012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 08910-001AD9148* PRODUCT PAGE QUICK LINKS Last Content Update: 09/27/2017 COMPARABLE PARTS DESIGN RESOURCES View a parametric search of comparable parts. AD9148 Material Declaration PCN-PDN Information EVALUATION KITS Quality And Reliability AD9148 Evaluation Board Symbols and Footprints DOCUMENTATION DISCUSSIONS Application Notes View all AD9148 EngineerZone Discussions. AN-1093: Synchronization of Multiple AD9122 TxDAC+ Converters SAMPLE AND BUY Data Sheet Visit the product page to see pricing options. AD9148: Quad 16-Bit,1 GSPS, TxDAC+ Digital-to-Analog Converter Data Sheet TECHNICAL SUPPORT Submit a technical question or find your regional support TOOLS AND SIMULATIONS number. AD9148 IBIS Model DOCUMENT FEEDBACK REFERENCE MATERIALS Submit feedback for this data sheet. Customer Case Studies Datang Mobile Case Study Informational Advantiv Advanced TV Solutions Solutions Bulletins & Brochures Digital to Analog Converters ICs Solutions Bulletin This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.