Analog Devices Inc. DC1565A-F

Overview

DC1565A-F from Analog Devices (formerly Linear Technology) is a high-performance evaluation board for the LTC2152-12 12-bit, 250Msps analog-to-digital converter. It provides full access to DDR LVDS digital outputs, configurable clocking with duty cycle stabilization, and programmable SPI interface - enabling rapid validation of wideband signal acquisition in SDR, medical imaging, and test equipment. The board supports 1.5V_P-P differential analog input range and delivers 68.5dB SNR at 70MHz.

For engineers reviewing the DC1565A-F datasheet, DC1565A-F pinout, DC1565A-F application, or DC1565A-F equivalent, this page delivers verified hardware configuration details, real-world timing behavior, power delivery architecture, FPGA interface guidance, and direct compatibility notes with Xilinx Kintex-7 and Intel Cyclone V reference designs.

Technical Context

The DC1565A-F implements a complete signal chain around the LTC2152-12, including transformer-coupled or balun-based analog input conditioning, on-board 1.8V LDOs for VDD/OVDD, and impedance-matched 100Ω differential LVDS routing to SMA connectors. Clock distribution uses a low-jitter HCSL oscillator with selectable divide-by-2 output to support ENC+/- differential drive.

It integrates a Cypress CY7C68013A USB 2.0 microcontroller for SPI register control and real-time data capture via PC software, with onboard memory buffering for up to 16k samples per channel. All critical ADC supply rails are independently decoupled with 0.1µF ceramic + 2.2µF tantalum networks per pin group.

Key Specifications

Availability

DC1565A-F is available at Aetrix Electronics and suitable for cellular basestation prototyping, software-defined radio development, and high-definition video digitization requiring stable component supply and full evaluation board traceability.

Supply support for DC1565A-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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs for precision and high-speed applications.

The DC1565A-F belongs to Analog Devices' high-speed ADC evaluation platform family, designed specifically to accelerate time-to-validation for RF sampling systems operating above 100Msps with sub-1ps jitter tolerance and wide analog bandwidth.

FAQ

What is the primary function of the DC1565A-F evaluation board?

The DC1565A-F evaluation board is a fully assembled and tested hardware platform for evaluating the LTC2152-12 12-bit, 250Msps analog-to-digital converter. It enables engineers to characterize dynamic performance (SNR, SFDR), validate DDR LVDS timing margins, configure SPI-controlled features like nap/sleep modes, and integrate the ADC into FPGA-based signal processing pipelines without custom PCB design.

Does the DC1565A-F support external clock sources?

Yes, the DC1565A-F supports both on-board HCSL oscillator (125MHz or 250MHz) and external single-ended or differential clock input via SMA connector. The external clock path routes directly to the ENC+/ENC– pins of the LTC2152-12, preserving phase integrity and supporting duty cycle stabilization when enabled through the SPI interface on DC1565A-F.

How is analog input coupling implemented on the DC1565A-F?

The DC1565A-F provides two analog input paths: transformer-coupled using Mini-Circuits ADT1-1WT (50Ω to 50Ω, 1:1) and balun-driven via Murata DLP11SA900HL2 (900MHz band). Both paths terminate into the LTC2152-12's AIN+/AIN– pins with matched 100Ω differential impedance and include AC coupling capacitors and common-mode biasing via the VCM output pin.

Can the DC1565A-F be used with Xilinx or Intel FPGAs?

Yes - the DC1565A-F's DDR LVDS outputs comply with ANSI/TIA/EIA-644-A LVDS standards and are routed to edge-mounted SMA connectors with controlled 100Ω differential impedance. Reference designs exist for Xilinx Kintex-7 (KC705) and Intel Cyclone V (DE1-SoC), including IBIS models and timing constraint files for proper setup/hold alignment relative to CLKOUT+.

What software tools are provided with the DC1565A-F?

Analog Devices supplies the DC1565A-F with the LTC2152-12 Evaluation Software (Windows-based), which enables real-time FFT analysis, histogram generation, SNR/SFDR measurement, SPI register read/write, and buffered data capture up to 16k samples. Source code for the Cypress FX2LP firmware and Python API wrappers are also available for custom integration.