Texas Instruments ADC3643EVM

Overview

ADC3643EVM from Texas Instruments is an evaluation module designed to characterize the ADC3643 - a 2-channel, 14-bit, 65 MSPS analog-to-digital converter with serial LVCMOS output interface and integrated decimation filter. It supports AC-coupled single-ended or differential analog inputs via onboard balun, external sampling clock input (65 MHz), and DCLKIN (227.5 MHz) for data capture control in DDC-bypass mode. The EVM enables lab-based dynamic performance validation for high-speed data acquisition systems.

For engineers reviewing the ADC3643EVM datasheet, ADC3643EVM pinout, ADC3643EVM application, or ADC3643EVM equivalent, this page delivers verified hardware setup requirements, software toolchain integration (HSDC Pro + ADC36xxEVM GUI), FPGA capture coordination via TSWDC155EVM, and precise signal generator configuration (65 MHz CLK, 5.135 MHz analog tone, 227.5 MHz DCLK) needed to replicate TI's published FFT and SNR measurements.

Technical Context

The ADC3643EVM implements a fixed-hardware interface between the ADC3643 and the TSWDC155EVM FPGA capture board via FMC connector, enabling real-time digitized data streaming over USB-C–controlled configuration. It uses onboard power regulation from a 12 V DC jack and supports flexible ADC configuration through USB-C or FMC-hosted control signals.

Signal integrity is maintained using SMA-connected, bandpass-filtered analog input (5 MHz), sampling clock (65 MHz), and DCLKIN (227.5 MHz) paths - all referenced to a common 10 MHz system clock. The EVM defaults to single-ended analog input on CHAp (J7) and CHBp (J9), with optional differential operation enabled by balun selection and jumper reconfiguration.

Key Specifications

Availability

ADC3643EVM is available at Aetrix Electronics and suitable for software-defined radio prototyping, communications infrastructure testing, spectrum analyzer development, and medical imaging front-end validation requiring stable component supply and full evaluation ecosystem support.

Supply support for ADC3643EVM 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, specializing in analog, embedded processing, and high-speed data conversion technologies for industrial, automotive, and communications markets.

The ADC3643EVM belongs to TI's ADC36xx evaluation platform family, engineered specifically to accelerate characterization and system integration of low-noise, low-power, high-resolution dual-channel ADCs used in wideband signal acquisition applications.

FAQ

What is the ADC3643EVM used for?

The ADC3643EVM is used to evaluate the ADC3643 - a 2-channel, 14-bit, 65 MSPS analog-to-digital converter - under real-world signal conditions. It enables engineers to measure dynamic performance metrics including SNR, SFDR, and ENOB using TI's HSDC Pro software and TSWDC155EVM FPGA capture board. The ADC3643EVM supports both single-ended and differential analog input configurations, making it suitable for RF receiver chain validation and high-fidelity data acquisition prototyping.

Which ADC devices does the ADC3643EVM support beyond the ADC3643?

In addition to the ADC3643, the ADC3643EVM is explicitly validated to evaluate the ADC3642 (14-bit, 25 MSPS) and ADC3641 (14-bit, 10 MSPS), as confirmed in Table 1-4 of the official user's guide. All three devices share identical pinout, interface protocol, and power architecture, allowing the same EVM hardware to be reconfigured via software and jumper settings to match each device's sample rate and decimation mode.

What external hardware is required to operate the ADC3643EVM?

To operate the ADC3643EVM, you must provide: a TSWDC155EVM data capture board; three low-phase-noise signal generators (for analog input, sampling clock, and DCLKIN); two bandpass filters (5 MHz and 65 MHz); a 12 V/1 A power supply; and a Windows 10/11 PC. The ADC3643EVM itself includes only the evaluation PCB, DC jack cable, USB-C cable, and JTAG dongle - no signal sources or capture hardware are included.

How is the ADC3643EVM configured for different operating modes?

The ADC3643EVM is configured via physical jumpers and switches: SW1 selects 12 V power source; SW2 chooses USB or FMC for communication; SW3 selects SMA or FMC for DCLKIN; SW5 and J13 set internal reference voltage; and J12 controls PDN/SYNC state. Configuration is finalized in software using the ADC36xxEVM GUI, which calculates and validates DCLK frequency (227.5 MHz for ADC3643), programs the ADC registers, and loads FPGA firmware onto the TSWDC155EVM.

Does the ADC3643EVM include design files and schematics?

Yes, complete hardware design files - including schematics, PCB layout (Gerber), and bill of materials (BOM) - are publicly available on the official Texas Instruments product page for ADC3643EVM. These files are provided under TI's standard evaluation module license and may be used for derivative design, failure analysis, or custom signal path optimization, subject to TI's terms for EVM reuse.