Catalog
Quad, 16-Bit, 2.4 GSPS, TxDAC+®Digital-to-Analog Converter
Key Features
• Supports input data rates up to 1 GSPS
• Proprietary, low spurious and distortion designSingle carrier LTE 20 MHz bandwidth (BW), ACLR = 77 dBc at 180 MHz IFSix carrier GSM IMD = 78 dBc, 600 kHz carrier spacing at 180 MHz IFSFDR = 72 dBc at 180 MHz IF, −6 dBFS single tone
• Flexible 8-lane JESD204B interface
• Multiple chip synchronizationFixed latencyData generator latency compensation
• Input signal power detection
• High performance, low noise phase-locked loop (PLL) clock multiplier
• Digital inverse sinc filter
• Digital quadrature modulation using a numerically controlled oscillator (NCO)
• Nyquist band selection—mix mode
• Selectable 1×, 2×, 4×, and 8× interpolation filters
• Low power: 2.11 W at 1.6 GSPS, full operating conditions
• 88-lead, exposed pad LFCSP
Description
AI
The AD9154 is a quad, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a maximum sample rate of 2.4 GSPS, permitting multicarrier generation up to the Nyquist frequency in baseband mode. The AD9154 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 the ADRF6720-27 radio frequency quadrature modulator (AQM) from Analog Devices, Inc. In mix mode, the AD9154 DAC can reconstruct carriers in the second and third Nyquist Zones. A serial port interface (SPI) provides the programming/readback of internal parameters. The full-scale output current can be programmed over a range of 4 mA to 20 mA. The AD9154 is available in two different 88-lead LFCSP packages.Product HighlightsUltrawide signal bandwidth 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.JESD204B Subclass 1 support simplifies multichip synchronization.Small package size with a 12 mm × 12 mm footprint.ApplicationsWireless communicationsMulticarrier LTE and GSM base stationsWideband repeatersSoftware defined radiosWideband communicationsPoint to point microwave radioTransmit diversity, multiple input/multiple output (MIMO)InstrumentationAutomated test equipment
