AD9146 Dual, 16-Bit, 1230 MSPS, TxDAC+® Digital-to-Analog Converter

The AD9146 TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital mod-ulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 3-wire serial port interface provides for program-ming/readback of many internal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9146 comes in a 48-lead LFCSP. Product Highlights Ultralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies. A proprietary DAC output switching technique enhances dynamic performance. The current outputs are easily configured for various single-ended or differential circuit topologies. Compact LVDS digital interface offers reduced width data bus. Applications Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM, LTE Digital high or low IF synthesis Transmit diversity Wideband communications: LMDS/MMDS, point-to-point

The AD9146 is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a sample rate of 1230 MSPS, permitting multicarrier generation up to the Nyquist frequency.

The AD9146 TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital mod-ulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 3-wire serial port interface provides for program-ming/readback of many internal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9146 comes in a 48-lead LFCSP.

Product Highlights

Features and Benefits
  • Flexible LVDS interface allows byte or nibble load
  • Single-carrier W-CDMA ACLR = 80 dBc at 122.88 MHz IF
  • Analog output: adjustable 8.7 mA to 31.7 mA,
    RL = 25 Ω to 50 Ω
  • Integrated 2×/4× interpolator/complex modulator allows carrier placement anywhere in the DAC bandwidth
  • Gain, dc offset, and phase adjustment for sideband suppression
  • Multiple chip synchronization interfaces
  • High performance, low noise PLL clock multiplier
  • Digital inverse sinc filter
  • Low power: 1.2 W @ 1.0 GSPS, 800 mW @ 500 MSPS, full operating conditions
  • 48-lead, exposed paddle LFCSP
Digital to Analog Converters
Instrumentation and Measurement
  • Electronic Test & Measurement
IBIS Models
Data Sheets
Documentnote
AD9146: Dual, 16-Bit, 1230 MSPS, TxDAC+ Digital-to-Analog Converter Data Sheet (Rev. A)PDF 1031 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD9146BCPZ Production48 ld LFCSP (7x7x.85mm w/5.6mm Pad)OTH 260-40 to 85C35.2929.95Y
AD9146BCPZRL Production48 ld LFCSP (7x7x.85mm w/5.6mm Pad)REEL 2500-40 to 85C029.95Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
AD9146-M5375-EBZEvaluation Board495Y
AD-DAC-FMC-ADPFMC to High-Speed DAC Evalution Board Adaptor 125Y
Reference Materials
AD9146: Dual, 16-Bit, 1230 MSPS, TxDAC+ Digital-to-Analog Converter Data Sheet (Rev. A) ad9146
AD9146 IBIS Model ad9146
Digital to Analog Converters ICs Solutions Bulletin ad5590