Texas Instruments ADS62P22EVM

Overview

ADS62P22EVM from Texas Instruments is an evaluation module designed to characterize the ADS62P22 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, VCXO+CDCE72010 with crystal filter or LVPECL), and configurable 3.3V/1.8V digital supply rails. The EVM enables FFT-based performance validation in IF-sampling receiver applications.

For engineers reviewing the ADS62P22EVM datasheet, ADS62P22EVM pinout, ADS62P22EVM application, or ADS62P22EVM equivalent, this page details jumper-configurable analog input routing, on-board clock generation options (including CDCE72010-programmed 245.76 MHz filtered LVCMOS output), dual power topologies (LDO-only or cascaded switching+LDO), SPI register control interface, and TSW1200 FPGA capture integration - all critical for ADC evaluation and system-level timing validation.

Technical Context

The ADS62P22EVM implements a modular signal chain architecture: analog inputs route through Mini-Circuits ADT4-1WT transformers or THS4509 differential amplifiers, while clocking supports direct single-ended injection at J19 or programmable synthesis via factory-configured CDCE72010 (divide-by-4, 20 MHz reference → 245.76 MHz Y0 output). Power delivery includes dual-path regulation - Option 1 uses TPS5420D + TPS79501DCQ for 6–36 V input efficiency, Option 2 employs TPS79633DCQ/TPS79601DCQ LDOs for low-noise 5.1–5.5 V operation.

Jumper-controlled configuration defines operational mode: JP11 selects parallel vs. SPI register access; SJP1/SJP2/SJP3/SJP5 configure amplifier bypass or differential input selection; SJP4/SJP6/SJP7 determine clock source (direct, crystal-filtered CMOS, or LVPECL); JP15/JP18 set ADC VA/VDD voltages (3.3 V or 1.8 V) per ADS62P22 datasheet requirements. All settings are validated against TI's SLAU237A User's Guide and schematic Sheets 1–6.

Key Specifications

Availability

ADS62P22EVM is available at Aetrix Electronics and suitable for RF receiver development, IF-sampling test benches, high-speed data acquisition prototyping, and ADC performance benchmarking requiring stable component supply and full documentation traceability.

Supply support for ADS62P22EVM 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 precision signal chain solutions.

The ADS62P22EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate characterization and system integration of dual-channel pipeline ADCs in communications infrastructure, radar, and instrumentation applications.

FAQ

What is the primary function of the ADS62P22EVM?

The ADS62P22EVM is a dedicated evaluation module for the ADS62P22 dual-channel 12-bit 65-MSPS analog-to-digital converter. It provides configurable analog input paths (transformer-coupled or THS4509-amplified), multiple clocking options (direct, crystal-filtered LVCMOS, or LVPECL), and dual power topologies to validate ADC performance metrics - including SNR, SFDR, and harmonic distortion - under real-world signal, timing, and supply conditions. The ADS62P22EVM enables rapid, repeatable testing aligned with TI's SLAU237A User's Guide.

Does the ADS62P22EVM support both 3.3V and 1.8V digital supply configurations for the ADS62P22?

Yes, the ADS62P22EVM supports both voltage configurations via jumper-selectable power paths. JP18 sets the ADC DVDD rail: position 1-2 delivers 3.3 V (for ADS62P22/23/24/25), while removing the shunt and connecting 1.8 V to the center post configures 1.8 V operation (for ADS62P28/29 variants). This matches the ADS62P22's native 3.3 V digital supply requirement and ensures correct biasing of the LVDS/CMOS output interface. The ADS62P22EVM's TPS79633DCQ regulator and JP18 jumper provide verified, low-noise 3.3 V DVDD delivery per TI's design specification.

How is clock generation implemented on the ADS62P22EVM?

The ADS62P22EVM offers three clocking architectures: (1) Direct injection via SMA J19 into transformer-coupled ADC input; (2) Onboard VCXO + CDCE72010 clock buffer with factory-programmed divide-by-4 EEPROM configuration, yielding 245.76 MHz Y0 output filtered by a 245.76 MHz crystal; (3) Differential LVPECL output (Y1P/Y1N) from the CDCE72010. SJP4, SJP6, and SJP7 jumpers select the active path. The ADS62P22EVM's clock section is fully documented in SLAU237A Sections 2.2.4 and Figure 11–12, confirming 245.76 MHz filtered CMOS as the recommended high-performance option.

Can the ADS62P22EVM be used with the TSW1200 capture board?

Yes, the ADS62P22EVM integrates directly with the TSW1200 via its J8 40-pin header. The TSW1200 provides FPGA-based data capture, real-time FFT analysis, and synchronized sample rate control - enabling immediate performance validation without custom hardware. TI's SLAU237A Section 4.1 confirms mechanical and electrical compatibility, including USB-powered 5 V sourcing to the ADS62P22EVM via JP8/J22 configuration. The ADS62P22EVM's J8 pinout aligns with TSW1200's ADC interface mapping, supporting both LVDS and CMOS data formats selected via JP14.

What analog input configurations does the ADS62P22EVM support?

The ADS62P22EVM supports two primary analog input topologies: (1) Transformer-coupled single-ended inputs via SMA connectors J6 (Channel A) or J3 (Channel B), using Mini-Circuits ADT4-1WT baluns for differential conversion; (2) THS4509 differential amplifier inputs, powered by J11 (5 V) and J13 (GND) for AC-coupled operation. SJP1/SJP2/SJP3/SJP5 jumpers configure signal routing and amplifier enable/disable. Table 5 in SLAU237A validates both options, with Option 1 as the default shipped configuration for high-bandwidth IF sampling up to 100 MHz.