Analog Devices Inc. DC1369A-E

Overview

DC1369A-E from Analog Devices (formerly Linear Technology) is a fully assembled, tested evaluation board for the LTC2258-14 14-bit, 65Msps analog-to-digital converter. It features ultralow power operation (81mW at 65Msps), 74dB SNR, 88dB SFDR, 800MHz full-power bandwidth, and configurable CMOS or DDR LVDS digital outputs - enabling high-fidelity digitization of IF signals in software-defined radio and portable medical imaging systems.

For engineers reviewing the DC1369A-E datasheet, DC1369A-E pinout, DC1369A-E application, or DC1369A-E equivalent, this page delivers verified board-level specifications, supported ADC configuration modes (SPI, parallel control), clock interface options (single-ended or differential ENC±), analog input conditioning, and layout-validated signal integrity for undersampling applications up to 140MHz.

Technical Context

The DC1369A-E implements the LTC2258-14 in its highest-speed variant (65Msps), with on-board differential analog input network optimized for 2VP-P range and 50Ω source termination. It supports all three output modes - full-rate CMOS, DDR CMOS, and DDR LVDS - via jumper-selectable configuration and includes an integrated clock duty cycle stabilizer and optional data randomizer for jitter-sensitive sampling.

Board-level design incorporates dedicated low-noise LDOs for VDD (1.8V) and OVDD (1.2V/1.5V/1.8V), precision reference decoupling (2.2µF + 0.1µF per REFH/REFL), and impedance-controlled routing for ENC±, CLKOUT±, and DDR LVDS data pairs - ensuring <0.17psRMS aperture jitter performance is preserved from IC to connector.

Key Specifications

Availability

DC1369A-E is available at Aetrix Electronics and suitable for software-defined radio development, cellular base station prototyping, and portable medical ultrasound imaging requiring stable component supply, traceable evaluation hardware, and production-ready signal chain validation.

Supply support for DC1369A-E 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, formed through the acquisition of Linear Technology in 2017.

The DC1369A-E belongs to ADI's LTC evaluation board family, designed specifically to accelerate time-to-prototype for high-speed data converters - emphasizing RF-signal fidelity, low-jitter timing, and flexible interface configuration for communications and instrumentation applications.

FAQ

What is the primary function of the DC1369A-E evaluation board?

The DC1369A-E evaluation board is a ready-to-use platform for evaluating the LTC2258-14 14-bit, 65Msps analog-to-digital converter. It provides complete signal conditioning, clock distribution, power regulation, and digital interface circuitry - allowing engineers to validate dynamic performance (SNR, SFDR), configure output modes (CMOS/LVDS), and integrate the DC1369A-E into RF receiver chains without custom PCB design.

Does the DC1369A-E support differential clock inputs for the LTC2258-14?

Yes, the DC1369A-E supports both single-ended and differential clock drive for the LTC2258-14 via the ENC+ and ENC– inputs. The board includes SMA connectors and matching network for differential clock injection, and the LTC2258-14 on the DC1369A-E is configured to accept PECL-, LVDS-, or CMOS-level clocks - preserving the device's 0.17psRMS aperture jitter specification under proper layout and termination.

Can the DC1369A-E be used with the LTC2257-14 or LTC2256-14?

No - the DC1369A-E is specifically designed and validated for the LTC2258-14 (65Msps variant). While the LTC2257-14 (40Msps) and LTC2256-14 (25Msps) share pin compatibility and similar architecture, the DC1369A-E's power delivery, clock routing, and layout optimizations target the higher-frequency performance envelope of the LTC2258-14, including 140MHz input bandwidth and DDR LVDS timing margins.

How is analog input range configured on the DC1369A-E?

Analog input range on the DC1369A-E is set by the SENSE pin voltage applied to the LTC2258-14: 0V selects ±0.5V, VDD selects ±1V, and an external voltage between 0.625V–1.3V scales the range linearly to ±0.8×(SENSE). The board provides test points and jumpers to route either the internal 1.25V reference or an external source to SENSE, enabling precise full-scale adjustment for varying signal amplitudes.

What digital interface options does the DC1369A-E provide for configuring the LTC2258-14?

The DC1369A-E supports both serial SPI (via CS/SCK/SDI/SDO headers) and parallel programming modes (via PAR/SER, CS, SCK, SDI). In SPI mode, users can fully configure features including clock duty cycle stabilizer, data randomizer, shutdown/nap modes, and output format. In parallel mode, key functions like output mode selection and stabilizer enable are controlled directly via logic-level inputs - simplifying integration in FPGA-based systems.