AD908AC   数模转换器   电子测试和测量系统

AD908AC混合信号前端(MxFE”)是一款高度集成的套件，具有四个 16 位、12 GSPS 最大采样率、RF 数模转换器(DAC)内核，以及四个12 位、4 GSPS 速率、RF 模数转换器(ADC)内核。AD908AC非常适合需要宽带 ADC 和 DAC 来处理具有宽瞬时带宽信号的应用。该套件具有八个发送和八个接收通道，支持 24.75Gbps/通道 JESD204C或 15.5 Gbps/通道 JESD204B 标准。该套件还具有片内时钟乘法器，以及直接针对RF 应用的宽带或多频带数字信号处理(DSP)功能。可以绕过 DSP 数据路径，以允许转换器内核与JESD204 数据收发器端口之间直接连接。AD908AC该套件还具有针对相位阵列雷达系统和电子战应用的低延迟回送和跳频模式。提供两种型号的 AD9081。4D4AC 模型支持完整的瞬时通道带宽，而 4D4AB 模型通过自动配置DSP，来限制启动时的瞬时带宽，从而支持每通道 600 MHz 的最大瞬时带宽。

AD908AC应用

无线通信基础设施。

微波点对点、E频段和 5G 毫米波

宽带通信系统

DOCSIS 3.1和4.0 CMTS

相控阵雷达与电子战

电子测试和测量系统

AD908AC性

灵活的可重新配置通用平台设计

4个DAC和4个ADC(4D4A)

支持单频段、双频段和多频段

数据路径和 DSP 模块可完全绕过

1、2、3和4的 DAC与ADC 采样率之比。具有多芯片同步功能的片内 PLL

片外 PLL 的外部 RFCLK 输入选项。最大 DAC 采样率高达12 GSPS

使用 JESD204C 的最大数据速率高达12GSPS

可用的模拟带宽高达 8 GHZ

最大 ADC采样率高达4GSPS

使用 JESD204C 的最大数据速率高达4GSPS

7.5 GHz 模拟输入全功率带宽(-3 B)

4 GSPS，输入为 -2.7 GHz时，ADC 交流性能为-1dBFS

满量程输入电压:1.4Vp-p

噪声密度:-147.5 dBFS/HZ

噪声指数:26.8 dB

HD2:-67 dBFS

HD3:-73 dBFS

最差的其他情况(HD2和HD3除外):2.7GHZ时，为-79 dBFS

12 GSPS 时的 DAC 交流性能

满量程输出电流范围:6.43 mA至 37.75 mA

双信号音IMD3(每个音调-7dBFS):-78.9 dBc。3.7GHZ时，NSD，单信号音:-1551dBC/HZ

。3.7GHZ时，SFDR，单信号音:-70dBc

SERDES JESD204B/JESD204C接口，16个通道速率高达 24.75 Gbps

The AD908AC Mixed Signal Front End (MxFE) is a highly integrated package with four 16-bit, 12 GSPS maximum sampling rate, RF digital-to-analog converter (DAC) cores, and four 12-bit, 4 GSPS rate, RF Analog-to-digital converter (ADC) cores. The AD908AC is ideal for applications that require wideband ADCs and Dacs to process signals with a wide instantaneous bandwidth. The kit has eight transmit and eight receive channels and supports either 24.75Gbps/ channel JESD204C or 15.5 Gbps/ channel JESD204B standards. The kit also features an on-chip clock multiplier, as well as wideband or multiband digital signal processing (DSP) capabilities aimed directly at RF applications. The DSP data path can be bypassed to allow a direct connection between the converter core and the JESD204 data transceiver port. The AD908AC suite also features low latency loopback and frequency hopping modes for phase array radar systems and electronic warfare applications. Two models of the AD9081 are available. The 4D4AC model supports full instantaneous channel bandwidth, while the 4D4AB model supports a maximum instantaneous bandwidth of 600 MHz per channel by automatically configuring the DSP to limit the instantaneous bandwidth at startup.

AD908AC application

Wireless communication infrastructure.

Microwave point-to-point, E-band and 5G millimeter wave

Broadband communication system

DOCSIS 3.1 and 4.0 CMTS

Phased array radar and electronic warfare

Electronic test and measurement systems

AD908AC

Flexible reconfigurable universal platform design

4 Dacs and 4 ADCs (4D4A)

Supports single band, dual band, and multi-band

Data paths and DSP modules can be completely bypassed

Ratio of DAC to ADC sampling rates of 1, 2, 3, and 4. On-chip PLL with multi-chip synchronization

External RFCLK input options for off-chip PLL. Maximum DAC sampling rate up to 12 GSPS

The maximum data rate with JESD204C is up to 12GSPS

Analog bandwidths up to 8 GHZ are available

Maximum ADC sampling rate up to 4GSPS

The maximum data rate with JESD204C is up to 4GSPS

7.5GHz analog input Full Power bandwidth (-3 B)

4 GSPS, the ADC AC performance is -1 DBFS when the input is -2.7 GHz

Full scale input voltage :1.4Vp-p

Noise density :-147.5 dBFS/HZ

Noise index :26.8 dB

HD2:-67 dBFS

HD3:-73 dBFS

Worst other case (except HD2 and HD3): -79 dBFS at 2.7GHZ

DAC AC performance at 12 GSPS

Full scale output current range: 6.43mA to 37.75mA

Dual signal tone IMD3(-7dBFS per tone):-78.9 dBc. At 3.7GHZ, NSD, single-signal tone :-1551 DBC /HZ

. At 3.7GHZ, SFDR, single-signal tone :-70 DBC

SERDES JESD204B/JESD204C interface, 16 channels up to 24.75 Gbps