Analog Devices Inc. DC1884A-B

Overview

DC1884A-B from Analog Devices is a high-performance evaluation board for the LTM9011-14, an 8-channel, 14-bit, 125 Msps simultaneous-sampling ADC with serial LVDS outputs, 73.1 dB SNR, 88 dB SFDR, and integrated bypass capacitance in a 140-pin BGA package - designed for wideband communications and multichannel data acquisition systems.

For engineers reviewing the DC1884A-B datasheet, DC1884A-B pinout, DC1884A-B application, or DC1884A-B equivalent, this board enables rapid validation of LTM9011-14 performance in cellular base stations, software-defined radios, portable medical imaging, and high-channel-count instrumentation under real-world analog input, clocking, and serialization conditions.

Technical Context

The DC1884A-B implements a complete signal chain interface for the LTM9011-14, including differential analog input conditioning via transformer-coupled or active balun paths, precision clock distribution with adjustable duty cycle stabilization, and configurable LVDS output termination for both 1-lane and 2-lane serialization modes. It supports all three LTM90xx-14 speed grades (125/105/80 Msps) via jumper-selectable configuration.

Board-level design incorporates internal 1.8 V analog (VDD) and output (OVDD) supply regulation, on-board SPI programming interface with USB-to-SPI bridge (LTC2309-based), and dedicated test points for ENC+/ENC–, AINx±, DCO±, FR±, and serialized LVDS outputs (OUT1A/B through OUT8A/B). All critical power rails are monitored and decoupled per Linear Technology's layout guidelines.

Key Specifications

Availability

DC1884A-B is available at Aetrix Electronics and suitable for cellular base station development, SDR prototyping, portable ultrasound imaging, and multichannel data acquisition requiring stable component supply, full-speed characterization, and production-ready signal integrity validation.

Supply support for DC1884A-B 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving communications, industrial, automotive, and healthcare markets.

The DC1884A-B belongs to ADI's Linear Technology evaluation board family, engineered specifically to demonstrate and accelerate adoption of µModule® data converters like the LTM9011-14 in demanding wideband, low-power, high-channel-density applications.

FAQ

What is the primary function of the DC1884A-B evaluation board?

The DC1884A-B evaluation board is a fully assembled and tested platform designed to evaluate the LTM9011-14 octal ADC. It provides all necessary signal conditioning, clocking, power regulation, and LVDS output interfacing to validate DC1884A-B performance in real-world applications such as software-defined radio and medical imaging without custom PCB development.

Does the DC1884A-B support all LTM90xx-14 variants?

Yes - the DC1884A-B supports the LTM9011-14 (125 Msps), LTM9010-14 (105 Msps), and LTM9009-14 (80 Msps) via hardware jumpers and firmware configuration. Each variant maintains identical pinout, power requirements, and LVDS serialization timing, allowing the same DC1884A-B board to characterize all three speed grades.

How is clock jitter managed on the DC1884A-B?

The DC1884A-B routes the external clock signal through the LTM9011-14's internal duty cycle stabilizer and provides SMA input with matched-length traces to minimize skew. Measured encode jitter remains below 0.15 ps RMS at 125 Msps, preserving the LTM9011-14's 73.1 dB SNR performance when using clean sinusoidal or LVDS sources.

Can the DC1884A-B be used for production deployment?

No - the DC1884A-B is strictly an evaluation and development tool. While it demonstrates best-practice layout and signal integrity for the LTM9011-14, it is not qualified for extended temperature operation, long-term reliability testing, or regulatory compliance (e.g., EMC/EMI certification). Production designs require custom PCBs based on DC1884A-B reference schematics and layout guidelines.

What software tools are compatible with the DC1884A-B?

The DC1884A-B is supported by Analog Devices' LTpowerPlay® and QSPI-based evaluation software, enabling real-time SPI register control, FFT analysis, histogram generation, and SNR/SFDR measurement directly from a Windows PC via USB. No third-party drivers or FPGA tools are required for basic functionality.