Texas Instruments ADS62P15EVM

Overview

ADS62P15EVM from Texas Instruments is an evaluation module designed to characterize the ADS62P15 dual-channel, 11-bit, 160-MSPS analog-to-digital converter under controlled analog input, clock, reference, and power supply conditions. It supports transformer-coupled or THS4509-amplified single-ended analog inputs (J3/J6), direct or VCXO+CDCE72010-derived clocking (up to 245.76 MHz filtered LVCMOS), and configurable 3.3V/1.8V digital supply rails. It is used for RF receiver IF sampling, communications test equipment, and high-speed data acquisition validation.

For engineers reviewing the ADS62P15EVM datasheet, ADS62P15EVM pinout, ADS62P15EVM application, or ADS62P15EVM equivalent, this page details jumper-configurable signal paths, on-board clock generation options (VCXO + CDCE72010), ADC power topology (TPS5420D + TPS79501 cascade or LDO-only), analog input routing (transformer vs. THS4509 amplifier), and SPI register control interface compatibility with TI's ADC evaluation software.

Technical Context

The ADS62P15EVM implements a dual-path analog front-end: one path routes signals directly via Mini-Circuits ADT4-1WT transformers for high-bandwidth (>100 MHz IF) differential conversion; the other uses the THS4509 fully differential amplifier with user-populated band-pass filter components. Clock distribution supports either external single-ended sinusoidal input (J19) or internal generation using a factory-programmed CDCE72010 clock buffer dividing a 983.04 MHz VCXO by four to produce a 245.76 MHz crystal-filtered LVCMOS output.

Power architecture includes two selectable topologies: Option 1 cascades the TPS5420D buck regulator (6–36 V input) with the TPS79501 LDO for low-noise 5 V AVDD and TPS79633 LDOs for 3.3 V DVDD and CDCE72010 rails; Option 2 uses only TPS79633/TPS79601 LDOs (5.1–5.5 V input) for lower noise but narrower input range. Jumper-controlled parallel-mode operation (JP11 = 1–2) is default; SPI control requires JP11 removal and JP9/JP10/JP8 reconfiguration.

Key Specifications

Availability

ADS62P15EVM is available at Aetrix Electronics and suitable for RF receiver IF sampling, high-speed test instrumentation, communications baseband validation, and radar waveform digitization requiring stable component supply and rapid ADC performance characterization.

Supply support for ADS62P15EVM 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 leadership in precision signal chain and high-speed ADC solutions.

The ADS62P15EVM belongs to TI's high-speed ADC evaluation platform family, engineered to accelerate design-in of dual-channel, pipeline-based converters for demanding communications, instrumentation, and defense applications.

FAQ

What is the primary function of the ADS62P15EVM?

The ADS62P15EVM is a dedicated evaluation module for the ADS62P15 dual-channel 11-bit 160-MSPS analog-to-digital converter. It provides configurable analog input paths (transformer-coupled or THS4509-amplified), multiple clocking options (direct or VCXO+CDCE72010-derived), and flexible power delivery (buck+LDO or LDO-only) to enable comprehensive performance testing-including SNR, SFDR, and ENOB-under real-world signal, timing, and supply conditions. The ADS62P15EVM itself contains no ADC; it hosts and interfaces with the ADS62P15 device mounted on the board.

Which ADC devices does the ADS62P15EVM support beyond the ADS62P15?

The ADS62P15EVM is designed as a common platform for the entire ADS62PXX family, explicitly supporting ADS62P42/43/44/45/48/49, ADS62P22/23/24/25/28/29, and ADS62C15/17 converters. Jumper configurations (e.g., JP15/JP18 for AVDD/DVDD voltage selection, JP14 for LVDS/CMOS output format) and power rail settings are adjusted per device requirements-such as 3.3 V vs. 1.8 V digital supply-making the ADS62P15EVM adaptable across speed grades and supply architectures within this family.

How is clock generation implemented on the ADS62P15EVM?

The ADS62P15EVM offers two clocking modes: (1) Direct external injection via SMA connector J19 (1.5 V_PP, 50 Ω, sinusoidal or square wave), converted to differential AC-coupled input by an ADT4-1WT transformer; or (2) Onboard generation using a 983.04 MHz VCXO (not populated by default) and a factory-configured CDCE72010 clock buffer programmed for divide-by-4, yielding a 245.76 MHz LVCMOS output filtered through an unpopulated 245.76 MHz crystal filter. Selection is controlled by jumpers J18, SJP4, SJP7, and SJP6 per Table 7 in SLAU237A.

What power supply options does the ADS62P15EVM provide, and how are they selected?

The ADS62P15EVM supports three power configurations via jumper banks: Option 1 uses the TPS5420D buck regulator (6–36 V input at J10) cascaded with the TPS79501 LDO for ultra-low-noise 5 V AVDD and TPS79633 LDOs for 3.3 V DVDD; Option 2 uses only TPS79633/TPS79601 LDOs (5.1–5.5 V input) for minimal ripple; Option 3 isolates AVDD and DVDD supplies for precise current consumption measurement. Selection is made via JP16, JP17, JP19, JP15, and JP18 per Tables 2 and 3 in SLAU237A. The ADS62P15EVM ships with Option 2 as default.

Can the ADS62P15EVM be controlled via SPI, and what is required to enable it?

Yes, the ADS62P15EVM supports SPI register control of the ADS62P15 ADC, but it requires hardware reconfiguration: JP11 must be removed (disabling parallel-mode reset), and JP9 (SDATA), JP10 (SEN), JP8 (SCLK), JP5–JP7 (CTRL1–3) must be set per SPI protocol requirements. The TI ADC SPI Control Software (documented in Section 3 of SLAU237A) then communicates via USB-connected host PC. This mode replaces jumper-based static configuration with dynamic register writes-enabling real-time gain, offset, and mode adjustments not possible in default parallel-mode operation of the ADS62P15EVM.