مدار مجتمع (آی سی) آی سی‌کاربرد ویژه

Product Attributes

Introduction

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 BGA_ED package.

Features

• 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
• Selectable interpolation filter for a complete set of input data rates
• 1×, 2×, 3×, 4×, 6×, and 8× configurable data channel interpolation
• 1×, 2×, 4×, 6×, 8×, and 12× configurable final interpolation
• Final 48-bit NCO that operates at the DAC rate to support frequency synthesis up to 6 GHz
• Transmit enable function allows extra power saving and downstream circuitry protection
• High performance, low noise PLL clock multiplier
• Supports 12.6 GSPS DAC update rate
• Observation ADC clock driver with selectable divide ratios
• Low power 2.55 W at 12 GSPS, dual channel mode
• 10 mm×10 mm, 144-ball BGA_ED with metal enhanced thermal lid, 0.80 mm pitch

Applications

• Wireless communications infrastructure
• Multiband base station radios
• Microwave/E-band backhaul systems
• Instrumentation, automatic test equipment (ATE)