Dual, 16-Bit, 12.6 GSPS RF DAC with Channelizers

The AD9173 is a high performance, dual, 16-bit digital-to-analog converter (DAC) that supports DAC sample rates to 12.6 GSPS. The device features an 8-lane, 15.4 Gbps JESD204B data input port, a high performance, on-chip DAC clock multiplier, and digital signal processing capabilities targeted at single-band and multiband direct to radio frequency (RF) wireless applications.

The AD9173 features three complex data input channels per RF DAC that are bypassable. Each data input channel includes a configurable gain stage, an interpolation filter, and a channel numerically controlled oscillator (NCO) for flexible, multiband frequency planning. The device supports up to a 1.54 GSPS complex data rate per input channel and is capable of aggregating multiple complex input data streams up to a maximum complex data rate of 1.54 GSPS. Additionally, the AD9173 supports ultrawide bandwidth modes bypassing the channelizers to provide maximum data rates of up to 3.08 GSPS (with 11-bit resolution using 16-bit serializer/deserializer (SERDES) packing) and 3.4 GSPS (with 11-bit resolution using 12-bit SERDES packing).

The AD9173 is available in a 144-ball BGAED package.

APPLICATIONS

* Wireless communications infrastructure

* Multiband base station radios

* Microwave/E-band backhaul systems

* Instrumentation, automatic test equipment (ATE)

PRODUCT HIGHLIGHTS

* Supports single-band and multiband wireless applications with three bypassable complex data input channels per RF DAC at a maximum complex input data rate of 1.54 GSPS with 11-bit resolution and 1.23 GSPS with 16-bit resolution. One independent NCO per input channel.

* Ultrawide bandwidth channel bypass modes supporting up to 3.08 GSPS data rates with 11-bit resolution, 16-bit SERDES packing and 3.4 GSPS with 11-bit resolution, 12-bit SERDES packing.

* Low power dual converter decreases the amount of power consumption needed in high bandwidth and multichannel applications.

* Supports multiband wireless applications

* 3 bypassable, complex data input channels per RF DAC

* 1.54 GSPS maximum complex input data rate per input channel

* 1 independent NCO per input channel

* Proprietary, low spurious and distortion design

* 2-tone IMD = −83 dBc at 1.8 GHz, −7 dBFS/tone RF output

* SFDR < −80 dBc at 1.8 GHz, −7 dBFS RF output

* Flexible 8-lane, 15.4 Gbps JESD204B interface

* Supports single-band and multiband use cases

* Supports 12-bit high density mode for increased data throughput

* Multiple chip synchronization

* Supports JESD204B Subclass 1