●Product Details
●The AD9139 is an 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a maximum update rate of 1600 MSPS, permitting multicarrier generation up to the Nyquist frequency. The AD9139 TxDAC+® includes features optimized for wide band communications applications, including 1× and 2× interpolation, a DLL based high speed interface, sample error detection, and parity detection. 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 up to 33 mA. The AD9139 is available in a 72-lead LFCSP.
●Product Highlights
● 1. 575 MHz achievable input signal bandwidth.
● 2. Advanced low spurious and distortion design techniques
●provide high quality synthesis of wideband signals from
●baseband to high intermediate frequencies.
● 3. Very small inherent latency variation simplifies both software
●and hardware design in the system. It allows easy multichip
●synchronization for most applications.
● 4. Low power architecture improves power efficiency.
●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
●### Features and Benefits
● Selectable 1×, 2× interpolation filter
●Support input signal bandwidth 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 Zero IF
● Flexible 16-bit LVDS interface
● Supports word and byte load
● Multiple chip synchronization
●Fixed latency and data generator latency compensation
● FIFO eases system timing and includes error detection
● High performance, low noise PLL clock multiplier
● Digital inverse sinc filter
● Low power:
●700 mW at 1230 MSPS
● 72-lead LFCSP
