16-Bit, 160 MSPS 2x/4x/8x Interpolating Dual TxDAC+ D/A Converter AD9777 Versatile input data interface FEATURES Twos complement/straight binary data coding 16-bit resolution, 160 MSPS/400 MSPS input/output Dual-port or single-port interleaved input data data rate Single 3.3 V supply operation Selectable 2/4/8 interpolating filter Power dissipation: typical 1.2 W 3.3 V Programmable channel gain and offset adjustment On-chip 1.2 V reference fS/4, fS/8 digital quadrature modulation capability 80-lead thin quad flat package, exposed pad (TQFP EP) Direct IF transmission mode for 70 MHz + IFs Enables image rejection architecture APPLICATIONS Fully compatible SPI port Communications Excellent ac performance Analog quadrature modulation architecture SFDR 73 dBc 2 MHz to 35 MHz 3G, multicarrier GSM, TDMA, CDMA systems WCDMA ACPR 71 dB IF = 19.2 MHz Broadband wireless, point-to-point microwave radios Internal PLL clock multiplier Instrumentation/ATE Selectable internal clock divider Versatile clock input Differential/single-ended sine wave or TTL/CMOS/LVPECL compatible FUNCTIONAL BLOCK DIAGRAM IDAC COS AD9777 HALF- HALF- HALF- GAIN OFFSET BAND BAND BAND DAC DAC FILTER1* FILTER2* FILTER3* DATA SIN ASSEMBLER IMAGE 16 16 16 16 16 REJECTION/ I I/Q DAC DUAL DAC LATCH f /2, 4, 8 GAIN/OFFSET DAC MODE REGISTERS I AND Q BYPASS NONINTERLEAVED MUX OR INTERLEAVED SIN 16 DATA 16 16 16 Q LATCH 16 FILTER COS BYPASS WRITE MUX MUX CONTROL IDAC I SELECT OUT /2 (f ) DAC CLOCK OUT /2 /2 /2 SPI INTERFACE AND PRESCALER DIFFERENTIAL CONTROL REGISTERS CLK PHASE DETECTOR AND VCO * HALF-BAND FILTERS ALSO CAN BE CONFIGURED FOR ZERO STUFFING ONLY PLL CLOCK MULTIPLIER AND CLOCK DIVIDER Figure 1. Rev. C 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 2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. VREF IOFFSET 02706-001AD9777* PRODUCT PAGE QUICK LINKS Last Content Update: 02/23/2017 COMPARABLE PARTS TOOLS AND SIMULATIONS View a parametric search of comparable parts. AD9777 IBIS Models DOCUMENTATION REFERENCE MATERIALS Application Notes Informational AN-137: A Digitally Programmable Gain and Attenuation Advantiv Advanced TV Solutions Amplifier Design Solutions Bulletins & Brochures AN-237: Choosing DACs for Direct Digital Synthesis Digital to Analog Converters ICs Solutions Bulletin AN-302: Exploit Digital Advantages in an SSB Receiver AN-320A: CMOS Multiplying DACs and Op Amps Combine DESIGN RESOURCES to Build Programmable Gain Amplifier, Part 1 AD9777 Material Declaration AN-320B: CMOS Multiplying DACs and Op Amps Combine PCN-PDN Information to Build Programmable Gain Amplifiers, Part 2 Quality And Reliability AN-595: Understanding Pin Compatibility in the TxDAC Symbols and Footprints Line of High Speed D/A Converters AN-640: Synchronizing Multiple AD9777s Using DATACLK DISCUSSIONS Input Mode AN-642: Coupling a Single-Ended Clock Source to the View all AD9777 EngineerZone Discussions. Differential Clock Input of Third-Generation TxDAC and TxDAC+ Products SAMPLE AND BUY AN-748: Set-Up and Hold Measurements in High Speed Visit the product page to see pricing options. CMOS Input DACs AN-808: Multicarrier CDMA2000 Feasibility TECHNICAL SUPPORT AN-912: Driving a Center-Tapped Transformer with a Submit a technical question or find your regional support Balanced Current-Output DAC number. Data Sheet AD9777: 16-Bit 160 MSPS 2x/4x/8x Interpolating Dual DOCUMENT FEEDBACK TxDAC+ D/A Converter Data Sheet Submit feedback for this data sheet. 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.