Texas Instruments ADC32J43EVM

Overview

ADC32J43EVM from Texas Instruments is an evaluation module designed to assess the ADC32J43 - a dual-channel, 14-bit, JESD204B-compliant analog-to-digital converter with 80 MSPS sampling rate, 1.8-V single-supply operation, and onboard LMK04828 clock generator for deterministic SYSREF timing. It supports transformer-coupled differential analog inputs and JESD204B lane synchronization for high-speed data acquisition in radar and communications test systems.

For engineers reviewing the ADC32J43EVM datasheet, ADC32J43EVM pinout, ADC32J43EVM application, or ADC32J43EVM equivalent, this page delivers verified hardware configuration options, power supply routing details, USB-SPI GUI control behavior, HSMC/FMC interface compatibility, and dc-coupling resistor swap procedures specific to the ADC32J43EVM revision.

Technical Context

The ADC32J43EVM implements a dual-channel JESD204B evaluation platform with two independent SERDES lanes (one per ADC core), onboard LMK04828 clock synthesizer supporting SYSREF distribution, and transformer-based analog input conditioning optimized for 50-Ω single-ended source coupling. It uses TI's THS4541RGT fully differential amplifiers pre-installed for dc-coupled operation on channels B and C.

Power architecture includes dual low-noise LDOs (1.8 V for ADC, 3.3 V for LMK04828), configurable via JP9/JP10 and JP12/JP13 jumpers, and supports both external clock injection (EXT_ADC_CLK) and internal clock generation. The board accepts 5-V input via barrel jack and routes it through TPS62080 and TPS7A4700 regulators.

Key Specifications

Availability

ADC32J43EVM is available at Aetrix Electronics and suitable for high-speed data converter evaluation, JESD204B protocol validation, and RF receiver chain prototyping requiring stable component supply, traceable sourcing, and long-term lifecycle coordination.

Supply support for ADC32J43EVM 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 specializing in analog, embedded processing, and high-performance data conversion technologies, with over 90 years of innovation in signal chain and power management solutions.

The ADC32J43EVM belongs to TI's high-speed ADC evaluation module family, engineered specifically to accelerate development of JESD204B-based systems in defense radar, 5G infrastructure, and wideband instrumentation applications.

FAQ

What is the primary function of the ADC32J43EVM?

The ADC32J43EVM is an evaluation module built to characterize and validate the ADC32J43 - a dual-channel, 14-bit, 80 MSPS JESD204B analog-to-digital converter. It provides full hardware and software support for analog input conditioning, clock generation (via LMK04828), JESD204B lane alignment, and register-level control using the HSDC Pro GUI. The ADC32J43EVM enables rapid system integration testing without custom PCB design.

Does the ADC32J43EVM support dc-coupled analog inputs?

Yes, the ADC32J43EVM supports dc-coupled analog inputs on channels B and C using pre-installed THS4541RGT amplifiers. To enable dc coupling, users must replace specific surface-mount resistors (R137, R216, R225, R227–R228, R218, R232, R235) per Table 7 in the SLAU579D user's guide. The default configuration is ac-coupled with 50-Ω termination, and resistor swaps are required only for dc-coupled operation.

Which software is used to control the ADC32J43EVM?

The ADC32J43EVM is controlled via the Texas Instruments High-Speed Data Converter Pro (HSDC Pro) GUI, installed using the ADC3xxxx_Installer_vxpx package. This software provides tabbed register access - including Common, ADC32Jxx, and LMK04828 tabs - for configuring sampling mode, dither, chopper, gain, test patterns, and JESD204B link parameters. The ADC32J43EVM communicates over Mini USB (J18) using a CPLD-based SPI bridge.

Can the ADC32J43EVM operate without the onboard LMK04828 clock generator?

Yes, the ADC32J43EVM can operate with an external clock applied to the EXT_ADC_CLK SMA connector (J9), bypassing the onboard LMK04828. In this mode, the LMK04828 remains unpowered unless explicitly enabled via jumper settings (JP12/JP13). The board retains full JESD204B functionality but requires external provision of synchronized SYSREF if deterministic lane alignment is needed - a capability natively supported by the LMK04828 when active.

What are the key hardware interfaces on the ADC32J43EVM?

The ADC32J43EVM features dual SMA analog inputs (J1–J4), one SMA clock input (J9), Mini USB for SPI GUI (J18), CPLD JTAG port (J19), 5-V barrel power jack (J20), HSMC data connector (J13A/B) for TSW14J56 or FPGA interfacing, and test points for LMK outputs (J13–J16). All critical signals - including SYSREF+/- (J23/J24), DCLKOUT6/7, and EXT_SYSREF - are accessible via labeled headers or test points as documented in the SLAU579D user's guide.