Texas Instruments ADS62P44EVM

Overview

ADS62P44EVM from Texas Instruments is an evaluation module designed to characterize the ADS62P44 dual-channel, 14-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 for communications and instrumentation applications.

For engineers reviewing the ADS62P44EVM datasheet, ADS62P44EVM pinout, ADS62P44EVM application, or ADS62P44EVM equivalent, this page provides verified hardware configuration options, jumper-controlled operational modes (parallel vs. SPI register control), clock distribution topology, analog input path selection, and power supply architecture details essential for ADC evaluation setup and signal integrity validation.

Technical Context

The ADS62P44EVM implements a modular signal chain with three configurable domains: analog input (J6/J3 transformer-coupled or J3/J9 via THS4509 amplifier), clock delivery (direct single-ended SMA J19, or CDCE72010-derived 245.76 MHz LVCMOS with crystal filter or differential LVPECL), and power regulation (TPS5420D + TPS79501 cascaded switching/LDO or LDO-only 5V→3.3V/1.8V). Jumper settings determine functional routing without soldering.

ADC interface is configurable for parallel-mode operation (default, JP11=1-2) or SPI register control (JP11 open, JP9/JP10/JP8 configured), with on-board THS4509 amplifier biasing options (AC-coupled 5V/GND or DC-coupled ±1V/4V), and isolated AVDD/DVDD measurement capability (Option 3 power mode). All configurations maintain impedance-matched 50Ω source termination compliance.

Key Specifications

Availability

ADS62P44EVM is available at Aetrix Electronics and suitable for RF receiver prototyping, high-speed data acquisition system validation, and communications transceiver development requiring stable component supply and repeatable evaluation infrastructure.

Supply support for ADS62P44EVM 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, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The ADS62P44EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate time-to-test for pipeline ADCs in demanding IF-sampling and direct-RF-conversion applications.

FAQ

What is the primary function of the ADS62P44EVM?

The ADS62P44EVM is a dedicated evaluation module for the ADS62P44 dual-channel, 14-bit, 65-MSPS analog-to-digital converter. It provides configurable analog input paths (transformer-coupled or THS4509-amplified), multiple clocking options (direct SMA or CDCE72010-derived), and flexible power delivery (LDO or switching + LDO) to validate dynamic performance metrics such as SNR, SFDR, and spurious-free dynamic range under real-world signal conditions. The ADS62P44EVM enables rapid, repeatable characterization without custom PCB design.

How do I configure the ADS62P44EVM for transformer-coupled analog input?

To configure the ADS62P44EVM for transformer-coupled analog input, retain the default jumper settings: SJP1=1-2 (AMPOUT+ bypassed), SJP2=1-2 (AMPOUT− bypassed), SJP5=1-2 (INPUT −ve from J3), SJP3=no shunt (INPUT +ve from J3), and JP3=2-3 (THS4509 powered down). Apply a 0 V offset, –1 dBFS amplitude, 50 Ω-terminated sine wave to J6 (Channel A) or J3 (Channel B). This routes the signal directly through the ADT4-1WT transformer pair to the ADS62P44 input pins, matching the recommended high-bandwidth input circuit in the ADS62P44 datasheet.

Can the ADS62P44EVM support both 3.3V and 1.8V digital supply voltages for the ADS62P44?

Yes, the ADS62P44EVM supports both 3.3V and 1.8V DVDD supply voltages for the ADS62P44. JP18 selects the digital supply rail: position 1-2 configures TPS79633 for 3.3V output (used with ADS62P42/43/44/45), while removing the shunt and connecting 1.8V to the center post configures 1.8V DVDD (required for ADS62P48/49). The EVM ships pre-configured for the installed ADC variant, and resistor R269/C148 may be modified in-field only if changing ADC devices - no changes are needed when evaluating the ADS62P44, which uses 3.3V DVDD.

What clock sources are supported by the ADS62P44EVM, and how are they selected?

The ADS62P44EVM supports three clock source configurations: (1) Direct single-ended 1.5 VPP sine wave into J19 (default, SJP4=1-2, SJP7=1-2); (2) 245.76 MHz filtered LVCMOS from CDCE72010 Y0 output (SJP4=2-3, SJP7=3-4, J18=1-2, J14=open); (3) Differential LVPECL from CDCE72010 Y1P/Y1N outputs (SJP4=2-3, SJP7=5-6, SJP6=2-3). The CDCE72010 is factory-programmed for divide-by-4 operation using a 983.04 MHz VCXO (not populated by default), and the crystal filter (centered at 245.76 MHz) must be added separately for Option 2.

Does the ADS62P44EVM include SPI interface capability for register control of the ADS62P44?

Yes, the ADS62P44EVM supports SPI register control of the ADS62P44. To enable it, remove the shunt from JP11 (disabling parallel reset), then configure JP9=1-2 (SDATA), JP10=1-2 (SEN), JP8=1-2 (SCLK), and JP5–JP7 per desired register settings. The TI ADC SPI Control Software (documented in SLAU237A Section 3) communicates via USB-connected host PC to configure gain, offset, data format, and test patterns. This mode allows dynamic register updates during evaluation, unlike the default parallel-mode configuration where jumpers set static operating modes.