AD9146BCPZRL

Overview

The AD9146BCPZRL is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) from Analog Devices. It delivers sample rates up to 1000 MSPS with nominal supplies and 1230 MSPS with increased supplies. The device features flexible LVDS interfaces for byte or nibble loading, an integrated 2×/4× interpolator/complex modulator, and a high-performance low-noise PLL clock multiplier. Key electrical specifications include a full-scale output current adjustable from 8.7 mA to 31.7 mA, single-carrier W-CDMA ACLR of 80 dBc at 122.88 MHz IF, and power consumption of 1.2 W at 1.0 GSPS. It is housed in a 48-lead LFCSP package.

Feature Summary

• Dual 16-bit DAC architecture supporting up to 1230 MSPS sample rates
• Integrated 2×/4× interpolator and complex modulator for carrier placement
• Flexible LVDS interface allowing byte or nibble data loading
• High-performance low-noise PLL clock multiplier with digital inverse sinc filter

Applications

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

Procurement Notes

Verify the specific ordering suffix RL against the manufacturer's official documentation to confirm reel packaging details. Ensure that any assumed functional differences based on suffixes are explicitly supported by the datasheet text. Cross-reference the part number with the authorized distributor list to confirm availability status and compliance with regional regulations.

Selection Notes

Select this component for applications requiring high dynamic range and low noise spectral density. The integrated interpolation filters and complex modulator simplify system design by reducing external processing requirements. Consider the power dissipation characteristics, which reach 1.2 W at 1.0 GSPS, when designing thermal management solutions for the 48-lead LFCSP package.

Part Context

The AD9146 belongs to the TxDAC+ family of digital-to-analog converters designed for direct conversion transmit applications. It is optimized for interfacing with analog quadrature modulators. Companion products include IQ modulators like the ADL537x series and clock drivers such as the AD9516. The device supports multichip synchronization for multi-transmitter array configurations.

Replacement Considerations

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