AD9142 Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter

The AD9142 is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a sample rate of 1600 MSPS, permitting a multicarrier generation up to the Nyquist frequency. The AD9142 TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital mod-ulation, input signal power detection, and gain, phase, and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series and the ADRF670x series from Analog Devices, Inc. A 3-wire serial port interface provides for the pro-gramming/readback of many internal parameters. Full-scale output current can be programmed over a range of 9 mA to 33 mA. The AD9142 is available in a 72-lead LFCSP. PRODUCT HIGHLIGHTS Advanced low spurious and distortion design techniques provide high quality synthesis of wideband signals from baseband to high intermediate frequencies. Very small inherent latency variation simplifies both software and hardware design in the system. It allows easy multichip synchronization for most applications. New low power architecture improves power efficiency (mW/MHz/channel) by 30%. Input signal power and FIFO error detection simplify designs for downstream analog circuitry protection. Programmable transmit enable function allows easy design balance between power consumption and wakeup time. APPLICATIONS

Features and Benefits
  • Very small inherent latency variation: <2 DAC clock cycles
  • Proprietary low spurious and distortion design
    6-carrier GSM ACLR = 79 dBc at 200 MHz IF
    SFDR > 85 dBc (bandwidth = 300 MHz) at ZIF
  • Flexible 16-bit LVDS interface
    Supports word and byte load
  • Multiple chip synchronization
    Fixed latency and data generator latency compensation
  • Selectable 2×, 4×, 8× interpolation filter
    Low power architecture
    fS/4 power saving coarse mixer
  • Input signal power detection
    Emergency stop for downstream analog circuitry protection
  • FIFO error detection
  • See data sheet for additional features
Digital to Analog Converters
IBIS Models
Data Sheets
Documentnote
AD9142: Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter Data Sheet (Rev. 0)PDF 1128 kB
Application Notes
Documentnote
AN-1342: AD9142 to AD9142A Migration (Rev. 0)PDF 174.27 K
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD9142BCPZ Production72 ld LFCSP (10x10mm, 6.0mm exposed pad) OTH 168-40 to 85C48.741.4Y
AD9142BCPZRL Production72 ld LFCSP (10x10mm, 6.0mm exposed pad) REEL 2000-40 to 85C041.4Y
Reference Materials
AD9142:双通道、16位、1600 MSPS、TxDAC+数模转换器 (Rev. 0) ad9142
AD9142: Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter Data Sheet (Rev. 0) ad9142
AD9142 IBIS Model ad9142
AN-1342: AD9142 to AD9142A Migration (Rev. 0) ad9142
MS-2739: 高动态范围IF接收器可简化新一代W点对点调制解调器的设计 adl5246