Analog Devices Inc. DC1369A-N

Overview

DC1369A-N from Analog Devices (formerly Linear Technology) is a fully populated, ready-to-run evaluation board for the LTC2262-12 - a 12-bit, 150Msps ultralow-power analog-to-digital converter with 70.5dB SNR and 88dB SFDR. It supports differential analog input up to 800MHz full-power bandwidth, operates from a single 1.8V supply, and features configurable CMOS/DDR-CMOS/DDR-LVDS outputs. Designed for high-performance communications signal acquisition.

For engineers reviewing the DC1369A-N datasheet, DC1369A-N pinout, DC1369A-N application, or DC1369A-N equivalent, this page delivers verified hardware configuration details, supported ADC interface modes, clocking architecture, layout-validated signal integrity practices, and direct integration guidance for cellular base stations, software-defined radios, and portable medical imaging systems.

Technical Context

The DC1369A-N implements the LTC2262-12 in its 40-lead (6mm × 6mm) QFN package with exposed thermal pad, using optimized RF layout techniques including controlled-impedance differential analog traces, dedicated ground planes, and low-inductance decoupling (0.1µF + 2.2µF ceramics at VDD/REFH/REFL/OGND). It supports all three digital output modes - full-rate CMOS, DDR-CMOS, and DDR-LVDS - with on-board termination and selectable OVDD (1.2V/1.5V/1.8V).

Board-level functionality includes an onboard ultra-low-jitter clock generator (LTC6957-3), transformer-coupled analog input path with MA/COM MABAES0060 balun, SPI interface for register configuration via USB-SPI adapter, and jumper-selectable reference mode (internal ±1V or external SENSE-programmed range). Power sequencing and thermal management are validated per LTC2262-12 absolute maximum ratings.

Key Specifications

Availability

DC1369A-N is available at Aetrix Electronics and suitable for cellular base station development, software-defined radio prototyping, portable medical ultrasound design, and multi-channel data acquisition systems requiring stable component supply and production-ready evaluation infrastructure.

Supply support for DC1369A-N 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 precision instrumentation, communications, industrial, and healthcare markets.

The DC1369A-N belongs to ADI's Linear Technology Evaluation Board product line, engineered to accelerate time-to-prototype for high-speed data converters by delivering fully characterized, layout-optimized, and documentation-rich reference platforms.

FAQ

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

The DC1369A-N evaluation board is a complete hardware platform designed specifically to evaluate the LTC2262-12 12-bit, 150Msps analog-to-digital converter. It provides validated signal integrity, power delivery, clocking, and digital interface implementation - enabling rapid characterization of AC performance (SNR, SFDR), DC accuracy (INL/DNL), and system-level integration without custom PCB development. The board ships fully assembled and tested.

Does the DC1369A-N support all digital output configurations of the LTC2262-12?

Yes, the DC1369A-N supports all three digital output modes of the LTC2262-12: full-rate CMOS, double-data-rate CMOS (DDR-CMOS), and double-data-rate LVDS (DDR-LVDS). Jumper settings configure OVDD voltage (1.2V/1.5V/1.8V) and enable/disable internal 100Ω LVDS termination. The board routes all required pins (D0–D11, CLKOUT±, OF±, ENC±) with appropriate termination and impedance control per mode.

How is the analog input driven on the DC1369A-N, and what frequency range does it support?

The DC1369A-N uses a transformer-coupled differential analog input path centered on the MA/COM MABAES0060 balun, as recommended in Figure 3 of the LTC2262-12 datasheet. This configuration supports 5MHz to 70MHz input frequencies with optimal balance and common-mode rejection. Input range is selectable between ±1V (internal reference) and ±0.8×V_SENSE (external reference), configured via the SENSE pin.

Can the DC1369A-N be used with an external clock source instead of the onboard LTC6957-3?

Yes, the DC1369A-N provides SMA connectors for both differential (ENC+/ENC−) and single-ended (ENC+) clock inputs, allowing direct connection of an external low-jitter clock source. The onboard LTC6957-3 can be disabled via jumper, and the board's clock distribution network maintains tight skew (<0.6ns) and proper termination for either source - preserving the LTC2262-12's 0.17psRMS aperture jitter performance.

Is SPI configuration of the LTC2262-12 registers supported on the DC1369A-N?

Yes, the DC1369A-N exposes the LTC2262-12's serial programming interface (CS, SCK, SDI, SDO) via a 0.1" header compatible with Analog Devices' DC2026 USB-SPI controller. The PAR/SER pin is jumper-configurable to enable serial mode, and all timing requirements (tSCK ≥40ns, tDS ≥5ns, etc.) are met by the board's routing and pull-up/pull-down networks - enabling full read/write access to mode control registers for output format, randomizer, duty cycle stabilizer, and power mode selection.