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| 型号： | AD9644CCPZ-80 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 26/44页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 80MSPS 3V 48LFCSP |
| 标准包装： | 1 |
| 位数： | 14 |
| 采样率（每秒）： | 80M |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 460mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 48-LFCSP-VQ（7x7） |
| 包装： | 托盘 |
| 输入数目和类型： | 2 个差分，双极 |
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AD9644
Data Sheet
Rev. C | Page 32 of 44
HARDWARE INTERFACE
The pins described in Table 15 comprise the physical interface
between the user programming device and the serial port of the
AD9644. The SCLK pin and the CSB pin function as inputs
when using the SPI interface. The SDIO pin is bidirectional,
functioning as an input during write phases and as an output
during readback.
The SPI interface is flexible enough to be controlled by either
FPGAs or microcontrollers. One method for SPI configuration
is described in detail in the AN-812 Application Note, Micro-
controller-Based Serial Port Interface (SPI) Boot Circuit.
The SPI port should not be active during periods when the full
dynamic performance of the converter is required. Because the
SCLK signal, the CSB signal, and the SDIO signal are typically
asynchronous to the ADC clock, noise from these signals can
degrade converter performance. If the on-board SPI bus is used for
other devices, it may be necessary to provide buffers between
this bus and the AD9644 to prevent these signals from transi-
tioning at the converter inputs during critical sampling periods.
SPI ACCESSIBLE FEATURES
Table 16 provides a brief description of the general features that
are accessible via the SPI. These features are described in detail
in the AN-877 Application Note, Interfacing to High Speed ADCs
via SPI. The AD9644 part-specific features are described in detail in
Table 16. Features Accessible Using the SPI
Feature Name
Description
Mode
Allows the user to set either power-down mode
or standby mode
Clock
Allows the user to access the DCS, set the
clock divider, set the clock divider phase, and
enable the sync
Offset
Allows the user to digitally adjust the
converter offset
Test I/O
Allows the user to set test modes to have
known data on output bits
Full Scale
Allows the user to set the input full scale
voltage
JESD204A
Allows user to configure the JESD204A output
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9644CCPZRL7-80 | 功能描述:IC ADC 14BIT 80MSPS 3V 48LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD9645 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual, 14-Bit, 80 MSPS/125 MSPS, Serial LVDS |
| AD9645-125EBZ | 功能描述:数据转换 IC 开发工具 14Bit 125Msps Dual ADC w/serial LVDS RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| AD9645BCPZ-125 | 功能描述:模数转换器 - ADC Dual 14-Bit 125 MSPS Serial LVDS 1.8V RoHS:否 制造商:Analog Devices 通道数量: 结构: 转换速率: 分辨率: 输入类型: 信噪比: 接口类型: 工作电源电压: 最大工作温度: 安装风格: 封装 / 箱体: |
| AD9645BCPZ-80 | 功能描述:模数转换器 - ADC Dual 14-Bit 80 MSPS Serial LVDS 1.8V RoHS:否 制造商:Analog Devices 通道数量: 结构: 转换速率: 分辨率: 输入类型: 信噪比: 接口类型: 工作电源电压: 最大工作温度: 安装风格: 封装 / 箱体: |
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