Analog Devices Inc. DC1884A-F

Overview

DC1884A-F from Analog Devices (formerly Linear Technology) is an evaluation board for the LTM9008-14, an 8-channel, 14-bit, 65 Msps simultaneous-sampling analog-to-digital converter with serial LVDS outputs, 73 dB SNR, 90 dB SFDR, and integrated bypass capacitance in a 140-pin BGA package. It supports differential analog inputs up to 2 V_P-P, 800 MHz full-power bandwidth, and operates from a single 1.8 V supply - ideal for high-density RF data acquisition in software-defined radios and multichannel baseband receivers.

For engineers reviewing the DC1884A-F datasheet, DC1884A-F pinout, DC1884A-F application, or DC1884A-F equivalent, this page delivers verified hardware interface details, supported ADC configuration modes (1-/2-lane LVDS, internal/external reference), thermal and layout guidance for high-speed ADC evaluation, and direct cross-reference to LTM9008-14 design constraints including clock jitter tolerance, input common-mode range, and SPI register mapping.

Technical Context

The DC1884A-F implements a complete signal chain for the LTM9008-14, featuring matched 50 Ω SMA input paths with AC-coupled differential drive, on-board low-noise LDOs regulating VDD (1.8 V) and OVDD (1.8 V), and configurable termination for LVDS output lanes. It supports both differential and single-ended encode clocking, with onboard duty-cycle stabilizer enablement confirmed via jumper settings.

Board-level features include solderable test points for all critical analog and digital signals (AIN1± through AIN8±, ENC+/ENC–, FR+/FR–, OUT1A/B through OUT8A/B), dedicated SENSE pin routing for external reference selection, and SPI interface headers (CSA, CSB, SCK, SDI, SDO) compatible with standard Analog Devices DC2026 controllers. Thermal vias under the LTM9008-14 BGA ensure junction temperature remains within 150°C under full-rate operation.

Key Specifications

Availability

DC1884A-F is available at Aetrix Electronics and suitable for software-defined radio development, cellular base station prototyping, and portable medical ultrasound systems requiring stable component supply, traceable evaluation hardware, and documented signal integrity validation.

Supply support for DC1884A-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. (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-F belongs to ADI's Linear Technology evaluation board family, designed specifically to accelerate time-to-prototype for high-speed, multichannel data converters - emphasizing layout fidelity, noise isolation, and out-of-box usability for RF and instrumentation applications.

FAQ

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

The DC1884A-F evaluation board is a fully assembled and tested platform for evaluating the LTM9008-14 octal ADC. It provides all necessary power regulation, clock conditioning, analog input routing, and LVDS output interfacing to validate dynamic performance (SNR, SFDR), timing margins, and system-level integration without custom PCB design. The DC1884A-F enables immediate functional verification of the LTM9008-14 in real-world signal chains.

Does the DC1884A-F support both 1-lane and 2-lane LVDS serialization modes for the LTM9008-14?

Yes, the DC1884A-F supports both 1-lane and 2-lane LVDS output modes for the LTM9008-14. Mode selection is controlled via the PAR/SER jumper (JU1): open for serial (1-/2-lane) mode, shorted for parallel mode. In serial mode, SCK and CSA/CSB pins configure lane count and output current (1.75 mA or 3.5 mA). All LVDS signals are routed to accessible headers on the DC1884A-F for oscilloscope or logic analyzer capture.

Can the DC1884A-F be used to evaluate the LTM9007-14 or LTM9006-14 as well?

Yes - the DC1884A-F is mechanically and electrically compatible with the LTM9007-14 (40 Msps) and LTM9006-14 (25 Msps), as all three devices share identical 140-pin BGA packages, pinouts, power requirements (1.8 V), and register maps. No hardware modification is required; only firmware/software configuration changes are needed to match sample rate and timing parameters per device datasheet.

How is clock jitter managed on the DC1884A-F to preserve LTM9008-14 performance?

The DC1884A-F routes the encode clock (ENC+/ENC–) through controlled-impedance 100 Ω differential traces and provides a dedicated SMA input with onboard 50 Ω termination. The LTM9008-14's internal duty-cycle stabilizer is enabled by default on the DC1884A-F via appropriate strap resistors, allowing robust operation with ±20% duty cycle variation - critical for maintaining <0.15 ps RMS aperture jitter and sustaining 73 dB SNR at 70 MHz input.

What reference options does the DC1884A-F support for the LTM9008-14?

The DC1884A-F supports both internal and external reference configurations for the LTM9008-14. By default, the internal 1.25 V reference is active. To use an external reference, apply a 0.625–1.300 V source to the SENSE pin (accessible via test point TP13) and configure the REFSEL bit via SPI. VCM bias outputs (VCM14, VCM23, etc.) are pre-routed to set analog input common-mode voltage at VDD/2 (0.9 V), ensuring optimal linearity across all eight channels on the DC1884A-F.