Texas Instruments ADC32RF45EVM

Overview

ADC32RF45EVM from Texas Instruments is an evaluation module designed to demonstrate the performance of the ADC32RF45 dual-channel 14-bit RF-sampling analog-to-digital converter, supporting input frequencies up to 4 GHz and sampling rates up to 3 GSPS. It integrates JESD204B subclass 1 interface, on-board LMK04828 clock jitter cleaner, and configurable power delivery for high-fidelity signal acquisition in wideband receiver systems.

For engineers reviewing the ADC32RF45EVM datasheet, ADC32RF45EVM pinout, ADC32RF45EVM application, or ADC32RF45EVM equivalent, this module enables rapid validation of RF sampling architecture, clock synchronization, JESD204B link integrity, and dynamic range performance under real-world wideband signal conditions.

Technical Context

The ADC32RF45EVM implements a complete RF sampling signal chain centered on the ADC32RF45 IC, with the LMK04828 providing ultra-low-jitter device clocks and SYSREF timing aligned to ±25 ps. The board supports both AC-coupled and DC-coupled analog inputs via SMA connectors and includes programmable gain amplifiers and baluns for flexible front-end configuration.

It features full SPI control of ADC32RF45 registers, real-time JESD204B lane monitoring via TI's TICS Pro software, and hardware-triggered capture modes. Power sequencing is managed by discrete PMICs and monitored via on-board ADCs, ensuring stable operation across –40°C to +85°C ambient conditions.

Key Specifications

Availability

ADC32RF45EVM is available at Aetrix Electronics and suitable for RF test equipment, 5G massive MIMO baseband development, wideband spectrum analyzers, and phased-array radar prototyping requiring stable component supply and full technical documentation.

Supply support for ADC32RF45EVM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, communications, and consumer markets since 1930.

The ADC32RF45EVM belongs to TI's High-Speed Data Converter Evaluation Platform family, engineered specifically to accelerate RF-sampling ADC adoption by providing reference designs, validated clocking, JESD204B infrastructure, and production-ready layout practices.

FAQ

What is the primary function of the ADC32RF45EVM?

The ADC32RF45EVM is an evaluation module that demonstrates the full signal chain performance of the ADC32RF45 RF-sampling ADC. It provides calibrated analog input paths, ultra-low-jitter clocking via the LMK04828, JESD204B interface validation, and SPI-based register control - all integrated into a production-grade PCB layout. Engineers use the ADC32RF45EVM to verify dynamic range, SFDR, ENOB, and deterministic latency before system integration.

Does the ADC32RF45EVM support DC-coupled analog inputs?

No, the ADC32RF45EVM uses AC-coupled differential analog inputs via SMA connectors with internal 1:2 baluns and 50 Ω termination. DC coupling is not supported on this board due to the absence of bias tee circuitry and DC-blocking capacitor bypass options. For DC-coupled evaluation, TI recommends custom front-end adaptation or consultation of the ADC32RF45 datasheet for external bias network design guidelines.

Which clock jitter cleaner is integrated on the ADC32RF45EVM?

The ADC32RF45EVM integrates the LMK04828 ultra-low-noise jitter cleaner, configured in dual-loop mode to generate synchronized device clocks and SYSREF signals for the ADC32RF45. This ensures <88 fs RMS jitter (12 kHz–20 MHz) and deterministic phase alignment critical for multi-ADC time-interleaved or beamforming applications using the ADC32RF45EVM.

Can the ADC32RF45EVM operate without connection to a host PC?

No - the ADC32RF45EVM requires connection to a host PC running TI's TSW14J56EVM data capture card and HSDC Pro software for full functionality. While basic power-up and LED status indication occur standalone, JESD204B link initialization, register programming, data streaming, and real-time FFT analysis depend on the host-controlled interface. The ADC32RF45EVM does not include onboard memory or autonomous capture capability.

What software tools are required to use the ADC32RF45EVM?

TI's HSDC Pro software and TSW14J56EVM data capture card firmware are mandatory for operating the ADC32RF45EVM. Additional tools include TICS Pro for LMK04828 clock configuration, Code Composer Studio for optional firmware updates, and MATLAB with the ADC32RF45 EVM GUI add-on for advanced spectral analysis. All tools are freely available from ti.com and validated for use with the ADC32RF45EVM.