Texas Instruments ADC3223EVM

Overview

ADC3223EVM from Texas Instruments is an evaluation module designed to assess the ADC3223 - a dual-channel, 12-bit, 80 MSPS serial LVDS-output analog-to-digital converter. It supports transformer-coupled single-ended or differential analog inputs, onboard 1.8-V LDO power regulation, and SPI-based GUI control via Mini USB for register configuration and test pattern generation.

For engineers reviewing the ADC3223EVM datasheet, ADC3223EVM pinout, ADC3223EVM application, or ADC3223EVM equivalent, this page delivers verified hardware configuration options, jumper-controlled power paths, clock input circuit details, DC/AC coupling modification guidance, and software-controlled ADC register access specific to the ADC3223 device family.

Technical Context

The ADC3223EVM implements a dual-transformer analog input path for improved amplitude and phase balance, with default 50-Ω termination and support for both first- and second-Nyquist zone operation. Its clock interface accepts single-ended signals via SMA and uses a 1:4 impedance-ratio transformer to boost clock amplitude.

Power is derived from a 5-V input through a two-stage architecture: a DC/DC switching regulator (TPS62080) steps down to 2.8 V and 4 V, followed by low-noise LDOs (TPS7A4700) generating 1.8 V for the ADC and 3.3 V for digital logic. Jumpers JP6 and JP7 select between LDO and switcher supply for the 1.8-V rail.

Key Specifications

Availability

ADC3223EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, communications receiver prototyping, and radar signal chain validation requiring stable component supply and full evaluation infrastructure.

Supply support for ADC3223EVM 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 across industrial, automotive, and communications markets.

The ADC3223EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate characterization and system integration of the ADC32xx series - dual-channel, low-power, LVDS-output converters targeting communications infrastructure and instrumentation applications.

FAQ

What is the primary function of the ADC3223EVM?

The ADC3223EVM is an evaluation module built to characterize and validate the ADC3223 - a dual-channel, 12-bit, 80 MSPS analog-to-digital converter with serial LVDS output. It provides complete signal chain support including analog input conditioning, precision clocking, regulated 1.8-V ADC supply, and SPI-based GUI control. Engineers use the ADC3223EVM to verify performance metrics such as SNR, SFDR, and channel matching before integrating the ADC3223 into final designs.

Does the ADC3223EVM include an onboard clock generator?

No, the ADC3223EVM does not include an onboard clock generator like the LMK04828 found on JESD204B-family EVMs. It relies on an external single-ended clock source delivered via SMA connector J9, which is transformer-coupled to produce the differential clock required by the ADC3223. This aligns with the sLVDS interface architecture of the ADC3223 device itself, which lacks integrated JESD204B clock distribution functionality.

How is power delivered and regulated on the ADC3223EVM?

Power is supplied to the ADC3223EVM via a 5-V, 3-A minimum barrel connector (J15). An onboard TPS62080 DC/DC converter generates 2.8 V and 4 V rails, which feed two TPS7A4700 low-noise LDOs producing 1.8 V for the ADC3223 and 3.3 V for digital logic. Jumpers JP6 and JP7 allow selection between LDO-regulated or switcher-derived 1.8-V supply, with default configuration using the LDO path for lowest noise.

Can the ADC3223EVM support DC-coupled analog inputs?

Yes, the ADC3223EVM supports DC-coupled analog inputs through hardware modification. Users must replace eight surface-mount resistors on the top side of the board (R3, R4, R14–R18, R142, R139) with R135, R7, R120, R121, R138, R20, R144, and R141 per Table 6 in the SLAU579D user's guide. This reconfigures the input path to bypass AC-coupling capacitors and enable true DC response - essential for baseband and zero-IF receiver applications using the ADC3223.

Which software tools are compatible with the ADC3223EVM?

The ADC3223EVM is controlled exclusively via the Texas Instruments High-Speed Data Converter Pro (HSDC Pro) GUI software. This tool provides tabbed register access for the ADC3223 - including Common, ADC32xx, and device-specific settings - enabling real-time configuration of dither, digital gain (0–6 dB per channel), chopper mode, test patterns, LVDS swing, and clock divider. The GUI communicates over Mini USB (J14) using TI's proprietary SPI bridge firmware.