Texas Instruments THS14F01EVM

Overview

THS14F01EVM from Texas Instruments is an evaluation module designed to characterize the THS14F01 14-bit, 105-MSPS analog-to-digital converter under controlled signal, reference, and supply conditions. It supports true differential or single-ended transformer-coupled analog inputs via SMB connectors, accepts external or onboard 8-MHz clock sources, and interfaces with TMS320C6000/C5000 DSP motherboards via dual 80-pin daughtercard connectors.

For engineers reviewing the THS14F01EVM datasheet, THS14F01EVM pinout, THS14F01EVM application, or THS14F01EVM equivalent, this page provides verified hardware configuration details, jumper-based clock and input mode selection, power routing options (separate analog/digital supplies), interrupt signal routing (INT/FOVL), and CPLD-based address decode logic for direct ADC read/write cycles.

Technical Context

The THS14F01EVM implements a four-layer FR-4 PCB (100 mm × 86 mm) with dedicated analog and digital power domains, 50-Ω matched input paths, and configurable ac/dc-coupled clock input. It integrates SN74ALB16244DL/SN74ALB16245DL bus buffers for noise isolation and uses a Xilinx XC9536XL CPLD (U9) to decode TMS320C6000-style address/control lines (OUT_EA2–OUT_EA6, OUT_ARE, OUT_AWE) into ADC chip select, buffer direction, and output-enable signals.

Circuit-level features include hardware loopback mode (via H12/H13 jumpers), jumper-selectable clock source (external SMB J3, U6 DIL oscillator, U10 SMD oscillator, or DSP timer OUT_TOUT), and support for FOVL interrupt routing to both BIDIR_ED14 and IN_TINP - a capability explicitly documented for THS14F01 and THS14F03 only.

Key Specifications

Availability

THS14F01EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, DSP-based signal processing, and mixed-signal system validation requiring stable component supply and full hardware evaluation capability.

Supply support for THS14F01EVM 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 THS14F01EVM belongs to TI's high-speed data converter evaluation platform family, engineered specifically to accelerate development and validation of 14-bit, >100-MSPS ADC applications interfacing with C6000/C5000 DSP ecosystems.

FAQ

What is the primary function of the THS14F01EVM?

The THS14F01EVM is a dedicated evaluation module for the THS14F01 14-bit, 105-MSPS analog-to-digital converter. It enables hardware validation of signal integrity, timing margins, power supply rejection, and interface compatibility with TMS320C6000/C5000 DSP platforms. The THS14F01EVM does not replace the THS14F01 IC but provides a fully configured test environment including clock generation, input conditioning, buffering, and CPLD-based address decoding.

Which ADC models does the THS14F01EVM support?

The THS14F01EVM is explicitly designed for the THS14F01 and THS14F03 devices, as confirmed by its documentation stating FOVL interrupt functionality is supported only on those two variants. While the board references the broader THS14xx family, the user's guide clarifies that current implementation supports only THS14XX devices - and specific features like FOVL routing are validated solely for THS14F01 and THS14F03.

How is the THS14F01EVM powered, and what are the performance trade-offs?

The THS14F01EVM accepts power via 4-mm banana sockets (J7/J8 for +3.3 V analog/digital, J12/J13 for GND) or through daughtercard connectors. For best performance, separate low-noise analog and digital supplies are recommended. For good performance, both domains can be sourced from the daughtercard using jumper H14. Stand-alone operation requires independent analog and digital supplies. Exceeding +3.3 V risks component damage; undervoltage causes improper operation.

What clock sources are compatible with the THS14F01EVM?

The THS14F01EVM supports four clock sources: external ac-coupled (via SMB J3 with C21 and P1 trimming), external dc-coupled (via SMB J3 directly), onboard 8-MHz DIL oscillator (U6), and onboard 8-MHz SMD oscillator (U10). A fifth option - synchronization to DSP timer output (OUT_TOUT on J2 P45) - is enabled via jumper H6 (1–2). All oscillators must operate at +3.3 V.

Does the THS14F01EVM include hardware loopback functionality?

Yes, the THS14F01EVM supports hardware loopback mode via jumper links H12 and H13. This configuration routes ADC output data back internally to enable stand-alone operational verification without a host motherboard. The CPLD (U9) handles loopback logic, including inversion of BIDIR_ED13 to reconcile ADC binary output with DAC 2's-complement input requirements during self-test.