Texas Instruments ADS62P24EVM

Overview

ADS62P24EVM from Texas Instruments is an evaluation module designed to characterize the ADS62P24 dual-channel, 12-bit, 65-MSPS analog-to-digital converter under controlled signal, clock, reference, and power conditions. It supports transformer-coupled or THS4509-amplified analog inputs, multiple clocking paths (direct SMA, crystal-filtered LVCMOS, or differential LVPECL), and configurable 3.3V/1.8V digital supply rails. The EVM enables FFT-based performance validation in communications receiver and IF sampling applications.

For engineers reviewing the ADS62P24EVM datasheet, ADS62P24EVM pinout, ADS62P24EVM application, or ADS62P24EVM equivalent, this page details jumper-configurable analog input routing, VCXO+CDCE72010 clock synthesis options, TPS5420D/TPS79501 cascaded power delivery, SPI register control interface, and TSW1200 FPGA capture integration - all critical for ADC evaluation setup and signal integrity validation.

Technical Context

The ADS62P24EVM 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 integrates the THS4509 fully differential amplifier with user-populated band-pass filter components. Clock distribution includes direct SMA J19 input, onboard 983.04 MHz VCXO (unpopulated by default), and CDCE72010 programmable clock buffer configured for 245.76 MHz Y0 output with crystal filtering.

Power architecture supports three modes: LDO-only (5.1–5.5 V on J10), cascaded switching + LDO (6–36 V on J10 via TPS5420D → TPS79501 → TPS79633), and isolated AVDD/DVDD measurement (3.3 V/1.8 V applied directly to jumpers JP15/JP18). Control is implemented via shunt jumpers (e.g., JP11 for parallel mode, JP14 for LVDS/CMOS data format) and surface-mount 0Ω resistors for signal-path integrity.

Key Specifications

Availability

ADS62P24EVM is available at Aetrix Electronics and suitable for RF receiver development, IF sampling system validation, and high-speed ADC characterization requiring stable component supply and documented evaluation infrastructure.

Supply support for ADS62P24EVM 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 for industrial, automotive, and communications systems.

The ADS62PXXEVM product line was developed to provide standardized, jumper-configurable evaluation platforms for TI's high-speed pipeline ADCs - enabling rapid performance benchmarking across clock topologies, power architectures, and analog front-end configurations.

FAQ

What is the primary function of the ADS62P24EVM?

The ADS62P24EVM is an evaluation module built specifically to test and validate the electrical performance of the ADS62P24 dual-channel 12-bit 65-MSPS analog-to-digital converter. It provides configurable analog input paths (transformer or THS4509 amplifier), multiple clocking options (direct, crystal-filtered LVCMOS, or differential LVPECL), and flexible power delivery (LDO-only or cascaded switcher+LDO) - all accessible via documented jumper settings. The ADS62P24EVM does not operate as a standalone system but serves as a hardware reference platform for ADC characterization under real-world signal chain conditions.

Which ADC models are supported by the ADS62P24EVM?

The ADS62P24EVM supports the entire ADS62PXX family, including ADS62P22, ADS62P23, ADS62P24, ADS62P25, ADS62P28, ADS62P29, ADS62P42 through ADS62P49, and ADS62C15/17. This compatibility is achieved through shared pinout, voltage rail requirements (3.3 V AVDD, 1.8 V or 3.3 V DVDD), and register map alignment. The ADS62P24EVM's jumper configuration (e.g., JP15/JP18 for supply selection, JP14 for data format) must be adjusted per the target ADC's datasheet specifications - particularly for digital supply voltage and LVDS/CMOS interface mode.

How do I configure the ADS62P24EVM for transformer-coupled analog input?

To configure the ADS62P24EVM for transformer-coupled analog input, set SJP1 and SJP2 to 1–2 (selecting AMPOUT+ and AMPOUT− as ADC input sources), leave SJP3 unshunted (no shunt), and set SJP5 to 1–2 (selecting J3 as signal source). JP3 must remain at 2–3 to power down the THS4509 amplifier. This configuration routes the single-ended signal from SMA connector J3 (Channel B) or J6 (Channel A) through the ADT4-1WT transformer pair to generate a differential input for the ADS62P24. The default factory setting matches this configuration, and Figure 10 in SLAU237A shows typical FFT results using this path.

What clock sources can be used with the ADS62P24EVM?

The ADS62P24EVM supports three clock source configurations: (1) Direct single-ended clock applied to SMA J19 (1.5 VPP, sinusoidal or square, within ADS62P24's rated frequency range); (2) Crystal-filtered 245.76 MHz LVCMOS clock generated by the onboard CDCE72010 (Y0 output) when a 20 MHz reference is supplied to J19 and the VCXO is enabled; and (3) Differential LVPECL clock from CDCE72010 Y1P/Y1N outputs - though this option is explicitly marked "not recommended for most applications" in SLAU237A due to signal integrity constraints. All clock paths terminate into the ADS62P24's differential clock input via AC-coupled transformer networks.

Does the ADS62P24EVM include populated clock generation components?

No, the ADS62P24EVM ships with the CDCE72010 clock buffer pre-installed and factory-programmed for divide-by-4 operation, but the 983.04 MHz VCXO (TCO-2111) and 245.76 MHz crystal filter are not populated by default. These components must be added by the user based on the target sampling rate and system jitter requirements. Table 7 in SLAU237A confirms that VCXO and crystal filter are "not populated on the EVM by default", and Section 2.2.4.2 states they are omitted so users can select parts matching their end application - for example, populating a different VCXO frequency or custom crystal filter bandwidth.