3.75 GHz RF Acquisition and Playback Module

• Main Controller: XCKU040-2FFVA1156I chip form Xilinx UltraScale series

• RF Performance: Supports dual channels, with 2-lane TX channels supporting 10MHz to 6GHz frequency output; 2-lane RX high-speed adjustable data channels offering frequency input from 10MHz to 8GHz

• Extensive Expansion Interfaces: 2 HPC FMC expansion interfaces, 2 Gigabit Ethernet interfaces, 2 JTAG download and debugging interfaces and 1 M.2 socket interface

• ADC Performance: 14-bit resolution, 3 GSPS sampling rate

• DAC Performance: 16-bit resolution, 12.6 GSPS sampling rate

• Customization: offer customization services for the hardware interfaces and functions of the FPGA development board, along with ADC and DAC submodule

Overview

The SG2175 RF Acquisition and Playback Module is built on Xilinx's UltraScale series, featuring the XCKU040-2FFVA11561 chip as the main controller, equipped with four 1GB DDR4 modules. The SG2175 also integrates a 256 Mbit QSPI Flash for storing configuration files and system files. Additionally, it adopts an M.2 physical interface for a Solid State Drive (SSD) socket, allowing users to expand storage resources as needed. Apart from the extensive storage resources, the board extends numerous interfaces, including the ANSI/VITA-57.1-2008-based FMC interface, an MCU communication interface, a JTAG debugging interface, an Ethernet interface, and user lO ports. Moreover, the board ensures impedance matching and equal-length processing for high-speed differential signal routing, minimizing line spacing to guarantee data transmission rates. Integrated features include a temperature sensor, programmable clock chip, EEPROM, and other peripherals, making it highly suitable for user expansion designs.

FMC RF Acquisition Module

The chip AD9208 used in the ADC FMC submodule is a low-power, high-bandwidth, 14-bit, 3 GSPS ADC. It supports the JESD204B high-speed serial interface with a data transfer rate of up to 16 Gbps. The AD9208 provides outstanding spurious-free dynamic range with ultra-low power consumption across a wide range of input frequency. The onboard clock chip, HMC7044, can supply various clocks required by JESD204B, supporting both external reference clock and onboard clock modes. It features a synchronous trigger functionality, with analog signals input through SMA RF connectors, and external reference clock input through SMA RF connectors (10MHz).

FMC RF Transmitter Module

The DAC FMC daughterboard integrates a dual-channel, 16-bit, 12.6 GSPS RF DAC with the AD9172 chip. The onboard clock chip, HMC7044, offers various clocks required by JESD204B and supports both external reference clock and onboard clock modes. Compatible with synchronization trigger function, with analog signal output through an SMA RF connector and external reference clock input via an SMA RF connector (10 MHz). This FMC daughterboard is widely applicable in wireless communication infrastructure, multiband base station radios, instruments, automated test equipment, radar, and jammers.

System Framework Diagram

Application Scenarios

This module is primarily utilized in various application scenarios, such as electronic test and measurement, instrument and automated test equipment, wireless communication infrastructure, multi-band base station radios, RF signal recording and playback, software-defined radio.

Specifications

RF

2-lane TX channels and 2-lane RX high-speed adjustable data channels

2-lane TX channels support frequency output range from 10MHz to 6GHz

2-lane RX channels support frequency input range from 10MHz to 8GHz

Baseband

14-bit ADC resolution, 16-bit DAC resolution, supporting 2 channels

ADC sampling rate up to 3 GSPS

DAC sampling rate up to12.6 GSPS

Processor

Xilinx XCKU040-2FFVA1156I, with 530K logic cells

Storage Unit

4 GB DDR4, 64-bit, with maximum data transfer rate of 2666MT/s

Digital Interface Features

2 sets of FMC high-speed board-to-board connectors (compatible with HPC)

Ethernet interface (1000MbE connected to PL)

NVMe M.2 SSD interface, External GPIO interface

Power Supply

DC 12V,max 2.5A

System Synchronization

Support onboard clock

Support external reference clock input (REF IN)

FPGA Control Board

Hardware Resources

FPGA Model

XCKU040-2FFVA1156I

Storage

4 GB DDR4

256 Mb Flash

32 Kb EEPROM

Temperature Detection

Temperature sensor chip

Interface Resources

FMC High-Speed Connectors

Compliant with VITA57.1 and HPC standards

Communication Interfaces with MCU

onboard and external

Ethernet Port

1000M Ethernet

NVMe SSD Interface

M.2 Socket and

4-lane high-speed data interface

RF Board

Acquisition Board

Chip Model

ADS9208 (compatible with AD9689 and AD6688)

Number of Channels

2

Channel Isolation/Crosstalk at 170MHz

80 dBc

Maximum Sampling Rate

3 GSPS

Resolution

14 bits

Input Frequency Range

10MHz ~ 8GHz

Input Power Range

-90dBm ~ 0dBm

Input Impedance

50Ω

Input VSWR

≤1.5

SNR

>50 dBFS

Data Transfer

8-lane JESD204B

Max Data Transfer Rate

15 Gbps/lane

Noise Density

-152 dBFS/Hz

Interfaces

FMC high-speed connector,

SMA RF connector

Playback Board

Chip Model

AD9172(compatible with AD9173)

Number of Channels

2

Max sampling Rate

12.6GSPS

Resolution

16 bits

Output Frequency Range

10MHz ~ 6GHz

Output Frequency Accuracy

10ppm

Output Power Range

-90dBm ~ -15dBm

Output Impedance

50Ω

Output VSWR

≤1.5

Data Transfer

8-lane JESD204B

Max Data Transfer Rate

15 Gbps/lane

Interfaces

FMC high-speed connector,

SMA RF connector