Product Details
●The AD9144 is a quad, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a maximum sample rate of 2.8 GSPS, permitting a multicarrier generation up to the Nyquist frequency. The DAC outputs are optimized to interface seamlessly with the ADRF6720 analog quadrature modulator (AQM) from Analog Devices, Inc. An optional 3-wire or 4-wire serial port interface (SPI) provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a typical range of 13.9 mA to 27.0 mA. The AD9144 is available in an 88-lead LFCSP.
●Product Highlights
● 1. Greater than 1 GHz, ultrawide complex signal bandwidth enables emerging wideband and multiband wireless applications.
● 2. Advanced low spurious and distortion design techniques provide high quality synthesis of wideband signals from baseband to high intermediate frequencies.
● 3. JESD204B Subclass 1 support simplifies multichip synchronization in software and hardware design.
● 4. Fewer pins for data interface width with serializer/ deserializer (SERDES) JESD204B eight-lane interface.
● 5. Programmable transmit enable function allows easy design balance between power consumption and wake-up time.
● 6. Small package size with 12 mm × 12 mm footprint.
●Applications
● Wireless communications
●3G/4G W-CDMA base stations
●Wideband repeaters
●Software defined radios
● Wideband communications
●Point-to-point
●Local multipoint distribution service (LMDS) and multichannel multipoint distribution service (MMDS)
● Transmit diversity, multiple input/multiple output (MIMO)
● Instrumentation
● Automated test equipment
●### Features and Benefits
● Supports input data rate >1 GSPS
● Proprietary low spurious and distortion design
●6-carrier GSM IMD = 77 dBc at 75 MHz IF
●SFDR = 82 dBc at DC IF, -9dBFS
●Flexible 8-lane JESD204B interface
●Support dual DAC mode at 2.8GSPS
● Multiple chip synchronization
●Fixed latency
●Data generator latency compensation
● Selectable 1×, 2×, 4×, 8× interpolation filter
●Low power architecture
● Input signal power detection
●Emergency stop for downstream analog circuitry protection
● Transmit enable function allows extra power saving
● High performance, low noise PLL clock multiplier
● Digital inverse sinc filter
● Low power: 1.6 W at 1.6 GSPS, 1.7 W at 2.0 GSPS, full operating conditions
● 88-lead LFCSP with exposed pad
