Texas Instruments ADC32RF55EVM

Overview

ADC32RF55EVM from Texas Instruments is an evaluation module designed to characterize the ADC32RF55 dual-channel, 14-bit, 3-GSPS RF-sampling analog-to-digital converter with JESD204B interface. It integrates the LMK04832 clock generator, transformer-coupled analog inputs (30–3000 MHz), full power delivery, and FMC/FMC+ connectivity for FPGA development kits or TSW14J58 data capture. It supports bypass mode (2× averaging) and complex decimation modes (8× and 128×).

For engineers reviewing the ADC32RF55EVM datasheet, ADC32RF55EVM pinout, ADC32RF55EVM application, or ADC32RF55EVM equivalent, this page delivers verified hardware setup guidance, JESD204B lane configuration parameters (e.g., LMFSHd = 4-4-2-1-0 for 8× DDC), coherent frequency alignment procedures, and validated GUI-driven operating modes including quad-input selection and dual-channel averaging.

Technical Context

The ADC32RF55EVM implements a complete signal chain for RF-sampling ADC evaluation: analog input paths use BAL-0009 (wideband) and B0310J50100AHF (2nd Nyquist) baluns; clocking is managed by the LMK04832, providing FPGA reference clocks and SYSREF to both the ADC and FMC-connected logic. The board supports two physical input pairs (INA1/INB1 outer, INA2/INB2 inner) with configurable channel mapping via GUI.

It enables three core operational configurations: bypass mode (no digital down conversion), 8× complex decimation (single narrowband channel), and 128× complex decimation (dual narrowband channels), each requiring precise JESD204B link parameter alignment-such as lane rate (12.8 Gbps in bypass), K-factor, and NCO tuning (e.g., 800 MHz or 1000 MHz)-to establish synchronized data capture with TSW14J58EVM.

Key Specifications

Availability

ADC32RF55EVM is available at Aetrix Electronics and suitable for RF test bench validation, high-speed data converter qualification, and JESD204B interface interoperability verification requiring stable component supply and full documentation traceability.

Supply support for ADC32RF55EVM 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 delivering analog and embedded processing solutions, with leadership in high-speed data converters, clocking, and signal chain technologies.

The ADC32RF55EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate development of radar, 5G wireless infrastructure, and wideband communications systems using RF-sampling architecture.

FAQ

What is the primary function of the ADC32RF55EVM?

The ADC32RF55EVM is an evaluation module built to validate the performance and interface behavior of the ADC32RF55 RF-sampling ADC. It provides full hardware support-including LMK04832 clock generation, dual balun-based analog inputs, FMC/FMC+ interconnect, and USB-controlled GUI-to enable rapid characterization of sampling fidelity, JESD204B link stability, and digital down-converter functionality in lab and design environments. ADC32RF55EVM does not replace the ADC32RF55 but serves as its dedicated evaluation platform.

Which data capture hardware is required to operate the ADC32RF55EVM?

The ADC32RF55EVM requires the TSW14J58EVM data capture board to acquire and process digitized samples. This pairing is mandatory for functional operation: the TSW14J58EVM handles JESD204B data reception, buffering, and transfer to PC via USB 3.0, while the ADC32RF55EVM provides the analog front-end and clocking. Both boards are controlled jointly through TI's High Speed Data Converter Pro (HSDC Pro) software, which loads device-specific INI files like ADC32RF5x_4421_6G-8G for 8× decimation.

Does the ADC32RF55EVM support quad-input operation?

Yes-the ADC32RF55EVM supports quad-input configuration via its GUI, enabling independent selection of inner (INA2/INB2) or outer (INA1/INB1) analog inputs per channel. This mode does not enable four simultaneous independent ADC channels (the ADC32RF55 remains dual-channel), but allows flexible signal routing-e.g., using wideband BAL-0009 on INA1 and 2nd Nyquist B0310J50100AHF on INB2-within the same evaluation session. Quad mode must be explicitly enabled in the ADC32RF5x EVM GUI before capture.

How are JESD204B link parameters configured on the ADC32RF55EVM?

JESD204B parameters-including lane count, LMFSHd values, sample/frame ratio, and K factor-are set jointly in the ADC32RF5x EVM GUI and HSDC Pro. For example, 8× complex decimation uses LMFSHd = 4-4-2-1-0 and requires corresponding INI file (ADC32RF5x_4421_6G-8G) loaded into TSW14J58EVM. Mismatched settings between ADC32RF55EVM and FPGA-side configuration are the most common cause of link failure, so TI recommends starting with pre-validated configurations before customizing.

What clock sources and signal conditioning are needed for valid ADC32RF55EVM testing?

Valid ADC32RF55EVM operation requires a filtered, +10 dBm external clock applied to EXTCLK (J1) and a filtered, +10 dBm analog signal applied to selected input (e.g., INA1 or INB2). Clock filtering prevents jitter-induced SNR degradation; analog bandpass filtering ensures out-of-band noise does not alias into the target IBW. Recommended sources include Rohde & Schwarz SMA100A or HP 8644B generators. The LMK04832 onboard generates FPGA clocks and SYSREF, eliminating need for external clock distribution.