Analog Devices Inc. DC1058A-F

Overview

DC1058A-F from Analog Devices (formerly Linear Technology) is a 48-lead QFN evaluation board designed to demonstrate the LTC2203 - a 16-bit, 25Msps high-speed analog-to-digital converter optimized for wide dynamic range digitization of RF and IF signals up to 380MHz. It supports PGA front-end configuration (1.667VP-P or 2.5VP-P input range), delivers 81.6dB SNR and 100dB SFDR at 1MHz, and operates from a single 3.3V supply with 220mW power dissipation.

For engineers reviewing the DC1058A-F datasheet, DC1058A-F pinout, DC1058A-F application, or DC1058A-F equivalent, this board enables rapid validation of high-frequency sampling performance, clock duty cycle stabilization, out-of-range detection, and CMOS output interface timing in telecom receivers, spectrum analyzers, and ATE systems.

Technical Context

The DC1058A-F implements the full signal chain for the LTC2203 ADC, including precision differential analog input conditioning, on-board 3.3V LDO regulation, low-jitter clock distribution, and configurable CMOS data output termination. It integrates the optional internal dither and data randomizer features, and supports both internal (2.5V bandgap) and external reference modes via the SENSE pin.

Board-level design accommodates the LTC2203's 7mm × 7mm QFN package with exposed thermal pad, provides dedicated ground planes for analog/digital separation, and includes test points for CLK, AIN+, AIN−, D0–D15, OF, and CLKOUT± to support real-time timing analysis and FFT-based AC performance verification.

Key Specifications

Availability

DC1058A-F is available at Aetrix Electronics and suitable for spectrum analysis equipment, cellular base station receivers, and automated test equipment requiring stable component supply and validated high-speed ADC evaluation platforms.

Supply support for DC1058A-F 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

Analog Devices, Inc. (including legacy Linear Technology products) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors for precision and high-speed applications.

The DC1058A-F belongs to Analog Devices' high-speed data converter evaluation platform family, engineered specifically to accelerate development of RF/IF digitization systems in communications, instrumentation, and defense applications.

FAQ

What is the primary function of the DC1058A-F evaluation board?

The DC1058A-F evaluation board is designed exclusively to evaluate the LTC2203 16-bit, 25Msps analog-to-digital converter. It provides all necessary signal conditioning, power regulation, clocking, and interface circuitry to validate the DC1058A-F's AC performance (SNR, SFDR), timing behavior, and feature set-including PGA configuration, internal dither, and clock duty cycle stabilization-in real-world high-frequency sampling applications.

Does the DC1058A-F support both LTC2203 and LTC2202 devices?

No - the DC1058A-F is specifically configured for the LTC2203 (25Msps variant). While the LTC2202 (10Msps) shares the same 48-pin QFN package and pinout, the DC1058A-F's layout, clock distribution network, and power delivery are optimized for 25Msps operation and full-speed timing margins. Using the LTC2202 on the DC1058A-F is possible but not validated or supported by Analog Devices for guaranteed performance.

What reference options does the DC1058A-F support for the LTC2203?

The DC1058A-F supports both internal and external reference configurations for the LTC2203. By default, it uses the internal 2.5V bandgap reference (SENSE tied to VDD). An external 2.5V or 1.25V reference can be applied to the SENSE pin to override the internal reference - both yield a 2.5V full-scale ADC range when PGA = 0, as implemented in the DC1058A-F's reference circuitry.

Can the DC1058A-F be used with FPGA-based data capture systems?

Yes - the DC1058A-F provides LVCMOS-compatible parallel outputs (D0–D15, OF) with adjustable output voltage swing (0.5V–3.6V) and a dedicated CLKOUT± pair for synchronous latching. Its 48-pin interface and documented timing parameters (tD, tSKEW, pipeline latency = 7 cycles) enable direct connection to Xilinx or Intel FPGAs with appropriate level-shifting and capture logic, as confirmed in Analog Devices' DC1058A-F user guide and example HDL designs.

Is the exposed thermal pad on the DC1058A-F's LTC2203 soldered to the PCB?

Yes - the DC1058A-F's LTC2203 is mounted with its exposed thermal pad (Pin 49) fully soldered to an internal copper thermal plane per the manufacturer's thermal design guidelines. This ensures proper heat dissipation during continuous 25Msps operation and maintains junction temperature within the specified 0°C to 70°C (C-grade) or –40°C to 85°C (I-grade) operating range for the DC1058A-F.