Texas Instruments ADS62P49EVM

Overview

ADS62P49EVM from Texas Instruments is an evaluation module designed to characterize the ADS62P49 dual-channel, 14-bit, 250-MSPS analog-to-digital converter under real-world signal, clock, reference, and power supply conditions. It supports transformer-coupled or THS4509-amplified analog inputs, onboard VCXO + CDCE72010 clock generation (245.76 MHz filtered LVCMOS output), and configurable 1.8 V/3.3 V digital/analog supplies.

For engineers reviewing the ADS62P49EVM datasheet, ADS62P49EVM pinout, ADS62P49EVM application, or ADS62P49EVM equivalent, key selection considerations include LVDS/CMOS output interface flexibility, jumper-configurable power topology (LDO vs. switching + LDO), SPI-controlled CDCE72010 clock synthesis, TSW1200 FPGA capture compatibility, and differential input path options with THS4509 amplifier support.

Technical Context

The ADS62P49EVM implements a modular signal chain architecture centered on the ADS62P49 ADC, with independent analog input paths (transformer-coupled or THS4509-based), three selectable power supply topologies (LDO-only, cascaded switching+LDO, or isolated AVDD/DVDD), and dual-clocking schemes: direct SMA input or programmable CDCE72010-based generation with VCXO and crystal filter.

It integrates TI's ADC SPI Control Interface for register-level configuration, supports coherent FFT testing via synchronized signal/clock sources, and provides hardware-level control through 22 jumpers-including JP11 (parallel mode default), JP14 (LVDS/CMOS output select), and SJP4/SJP7/SJP6 (clock source routing)-enabling precise validation of timing, noise, and dynamic performance per ADS62P49 datasheet specifications.

Key Specifications

Availability

ADS62P49EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, communications receiver prototyping, and radar/IF sampling applications requiring stable component supply, full documentation traceability, and long-term evaluation platform continuity.

Supply support for ADS62P49EVM 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, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The ADS62P49EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate design-in of dual-channel, wideband ADCs like the ADS62P49 in demanding RF-sampling and IF-digitization systems.

FAQ

What is the primary function of the ADS62P49EVM?

The ADS62P49EVM is an evaluation module built to fully characterize the ADS62P49 dual-channel, 14-bit, 250-MSPS analog-to-digital converter. It enables engineers to validate dynamic performance (SNR, SFDR), timing margins, clock jitter sensitivity, and power supply rejection under configurable analog input, clock, reference, and supply conditions-providing a complete testbed before system integration.

Does the ADS62P49EVM support both LVDS and CMOS digital outputs?

Yes, the ADS62P49EVM supports both interfaces. LVDS output is routed by default to connector J8 and requires external 100 Ω termination per pair. CMOS output is available at headers J1 and J2, but requires installing buffers U12 or U13 (not populated by default) and configuring JP14 to 3–4 to redirect the ADC data bus from LVDS drivers to CMOS buffer inputs.

How is clock generation handled on the ADS62P49EVM?

The ADS62P49EVM offers two clocking methods: direct injection via SMA connector J19 (transformer-coupled to ADC), or onboard synthesis using a factory-programmed CDCE72010 clock generator and optional VCXO. With the CDCE72010, a 20 MHz reference applied to J19 yields a 245.76 MHz LVCMOS clock after 4× division and crystal filtering-optimized for low-jitter sampling of the ADS62P49.

Can the ADS62P49EVM be used to measure ADC current consumption separately for analog and digital supplies?

Yes, the ADS62P49EVM supports isolated current measurement via Power Supply Option 3. This requires removing shunts from JP15 and JP18 and applying separate power to their center pins-enabling independent monitoring of AVDD and DVDD current draw under defined operating conditions, critical for power-sensitive designs using the ADS62P49.

Which FPGA development platforms are compatible with the ADS62P49EVM?

The ADS62P49EVM is explicitly validated for use with TI's TSW1200 and TSW1100 capture boards. These platforms provide USB-connected logic analysis, real-time FFT visualization, and automated setup for ADS62P49 sample rates and input frequencies-leveraging the EVM's J8 LVDS interface and integrated SPI control to streamline ADC performance evaluation without custom firmware.