Texas Instruments ADS62P48EVM

Overview

ADS62P48EVM from Texas Instruments is an evaluation module designed to characterize the ADS62P48 dual-channel, 14-bit, 250-MSPS analog-to-digital converter under controlled analog input, clock, reference, and power supply conditions. It supports transformer-coupled or THS4509-amplified analog inputs, multiple clocking paths (direct SMA, VCXO + CDCE72010 with crystal filter or LVPECL), and configurable 1.8-V/3.3-V digital/analog supplies.

For engineers reviewing the ADS62P48EVM datasheet, ADS62P48EVM pinout, ADS62P48EVM application, or ADS62P48EVM equivalent, this module enables rapid ADC performance validation-including SNR, SFDR, and ENOB-using TSW1200 capture, SPI register control, coherent FFT analysis, and flexible power topologies (LDO-only or cascaded switching + LDO).

Technical Context

The ADS62P48EVM implements a dual-path analog input architecture: one path uses Mini-Circuits ADT4-1WT transformers for high-bandwidth (>100 MHz IF) single-ended-to-differential conversion; the other routes signals through a THS4509 differential amplifier with AC- or DC-coupled biasing options. Jumper-selectable configurations isolate analog and digital supply domains for accurate current consumption measurement.

Clock distribution includes three validated modes: (1) direct 1.5-V_PP sinusoidal input via J19, (2) 245.76-MHz filtered LVCMOS output from CDCE72010 (factory-configured ÷4 from 983.04-MHz VCXO), and (3) differential LVPECL output at same frequency. All modes maintain strict 50-Ω source impedance compliance and support coherent sampling with external signal generators.

Key Specifications

Availability

ADS62P48EVM is available at Aetrix Electronics and suitable for high-speed data acquisition systems, communications test equipment, and radar receiver development requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for ADS62P48EVM 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 converters, with decades of leadership in precision ADC design and evaluation platforms.

The ADS62PXXEVM product line was developed to accelerate time-to-characterization for TI's high-speed pipeline ADCs-including the ADS62P48-by providing fully documented, jumper-configurable hardware for signal integrity, power efficiency, and clock jitter sensitivity testing.

FAQ

What is the primary function of the ADS62P48EVM?

The ADS62P48EVM is a dedicated evaluation module for the ADS62P48 dual-channel, 14-bit, 250-MSPS analog-to-digital converter. Its purpose is to enable engineers to validate key performance metrics-including SNR, SFDR, and spurious-free dynamic range-under real-world conditions such as varying clock sources, analog input coupling methods, and power supply configurations. The ADS62P48EVM provides full hardware and software (TI ADC SPI Control) support to configure and capture data from the ADS62P48 without custom PCB design.

Which ADC models does the ADS62P48EVM support besides ADS62P48?

The ADS62P48EVM is designed for the entire ADS62PXX family, including ADS62P42/43/44/45/48/49, ADS62P22/23/24/25/28/29, and ADS62C15/17. However, jumper settings must be adjusted per device: ADS62P48 requires 1.8-V DVDD (JP18 set to 1-2), while ADS62P42–P45 require 3.3-V DVDD. The ADS62P48EVM's bill of materials, power topology, and default configuration are explicitly validated for ADS62P48 operation per SLAU237A User's Guide.

How is clocking implemented on the ADS62P48EVM?

The ADS62P48EVM offers three clocking modes: (1) Direct 1.5-V_PP sinusoidal input via SMA connector J19 (default), (2) Onboard 245.76-MHz LVCMOS clock generated by CDCE72010 (factory-programmed ÷4 from 983.04-MHz VCXO) and filtered through a 245.76-MHz crystal filter, and (3) Differential LVPECL output from CDCE72010 Y1P/Y1N pins. Mode selection is controlled by surface-mount jumpers SJP4, SJP6, SJP7, and J18, with all configurations maintaining 50-Ω impedance matching and coherent sampling capability.

Can the ADS62P48EVM be used with the TSW1200 capture board?

Yes, the ADS62P48EVM is fully compatible with the TSW1200 capture board. J8 on the ADS62P48EVM provides a standard 40-pin header for direct connection to the TSW1200, enabling real-time digital data capture and FFT analysis. The TI ADC SPI Control Software and TSW1200 GUI allow synchronized setup of sample rate, input frequency, and test mode (e.g., Single Tone FFT). Power for the ADS62P48EVM can also be sourced from the TSW1200's 5-V output when JP8 and J22 are configured per SLAU237A Section 1.1.

What power supply options are available for the ADS62P48EVM?

The ADS62P48EVM supports three jumper-configurable power topologies: (1) Cascaded switching + LDO (6–36 V input via J10 → TPS5420D + TPS79501 → low-noise AVDD/DVDD), (2) LDO-only (5.1–5.5 V input → default configuration), and (3) Isolated AVDD/DVDD for current consumption measurement (3.3 V and 1.8 V applied directly to JP15/JP18 center posts). Each option is documented in SLAU237A Table 3 with precise jumper settings and voltage limits to prevent damage.