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AD9142: Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter Data Sheet (Rev. 0)11/6/2012PDF1128 kB
AD9142
Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter
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Overview
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
Product Details
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 modulation, 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 programming/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
- Wireless communications:
3G/4G and MC-GSM base stations
Wideband repeaters
Software defined radios - Wideband communications:
Point-to-point
LMDS/MMDS - Transmit diversity/MIMO
- Instrumentation
- Automated test equipment
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Markets and Technologies
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Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (2)
Documentation & Resources
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AN-1342: AD9142 to AD9142A Migration (Rev. 0)1/2/2015PDF174 K
Tools & Simulations
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.