AD9122BCPZRL

Digital To Analog Converters Overview

The AD9122BCPZRL is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) from Analog Devices. It operates at a maximum sample rate of 1230 MSPS and utilizes TxDAC+ architecture. The device features integrated 2×/4×/8× interpolation filters and a complex numerically controlled oscillator (NCO). Key electrical parameters include a full-scale output current adjustable between 8.7 mA and 31.7 mA, with an internal reference voltage of 1.2 V. Power consumption is specified at 1.5 W at 1.2 GSPS under full operating conditions. The component is housed in a 72-lead LFCSP package.

Digital To Analog Converters Feature Summary

• Dual-channel 16-bit DAC with 1230 MSPS maximum sampling rate
• Integrated 2×/4×/8× interpolator and complex NCO for flexible carrier placement
• Flexible LVDS interface supporting word, byte, or nibble loading modes
• Adjustable analog output current ranging from 8.7 mA to 31.7 mA

Digital To Analog Converters Applications

• Wireless infrastructure systems
• W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM, LTE transmitters
• Digital high or low intermediate frequency (IF) synthesis
• Transmit diversity applications
• Wideband communications including LMDS/MMDS and point-to-point links

Digital To Analog Converters Procurement Notes

Verify the specific revision level (R1 or R2) upon receipt, as register maps and IOVDD ranges differ between silicon revisions. Confirm that the exposed paddle is properly soldered to the ground plane for thermal management. Ensure supply voltages match the requirements for the installed revision, particularly regarding the IOVDD upper limit.

Digital To Analog Converters Selection Notes

Select this component for direct conversion transmit applications requiring high dynamic range and low noise. Consider the integrated interpolation filters and NCO if system complexity reduction is desired. Verify that the required output current range fits within the 8.7 mA to 31.7 mA programmable limits. Check compatibility with companion IQ modulators such as the ADL537x family for seamless interfacing.

Digital To Analog Converters Part Context

The AD9122BCPZRL is the reel-packaged version of the AD9122BCPZ. Both share identical electrical specifications and functionality. The 'RL' suffix indicates tape-and-reel packaging suitable for automated assembly processes. The device belongs to the TxDAC+ family optimized for multi-carrier generation up to the Nyquist frequency.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.