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AD9142A: Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter Data Sheet (Rev. A)12/16/2013PDF1353 kB
AD9142A
Dual, 16-Bit, 1600 MSPS, TxDAC+ Digital-to-Analog Converter
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Overview
Features and Benefits
- Supports input data rate up to 575 MHz
- 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
- Data interface DLL
- Sample error detection and parity
- 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
- On-chip numeric control oscillator allows carrier placement anywhere in the DAC Nyquist bandwidth
- Transmit enable function for extra power saving
- High performance, low noise PLL clock multiplier
- Digital gain and phase adjustment for sideband suppression
- Digital inverse sinc filter
- Low power: 1.8 W at 1.6 GSPS, 1.5 W at 1.25 GSPS, full operating conditions
- 72-lead LFCSP
Product Details
The AD9142A 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 AD9142A 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 AD9142A is available in a 72-lead LFCSP.
PRODUCT HIGHLIGHTS
- Wide signal bandwidth (BW) enables emerging wideband and multiband wireless applications.
- 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
Product Categories
Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (3)
Documentation & Resources
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AN-1342: AD9142 to AD9142A Migration (Rev. 0)1/2/2015PDF174 K
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AD9142A Evaluation Board Documentation2/26/2014WIKI
Tools & Simulations
IBIS Models
Design Tools
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Reference Designs (1)
Product Recommendations
AD9142A Companion Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
AD9142A Discussions
RE: AD9142A LVDS data interface
6 week(s) ago in Speed DACs
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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.