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| 型号： | EVAL-AD7623CBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 19/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7623 |
| 标准包装： | 1 |
| 系列： | PulSAR® |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 1.33M |
| 数据接口： | 串行，并联 |
| 输入范围： | ±VREF |
| 在以下条件下的电源（标准）： | 50mW @ 1.33MSPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7623 |
| 已供物品： | 板 |
| 相关产品： | AD7623ASTZ-ND - IC ADC 16BIT 1.33MSPS DFF 48LQFP AD7623ACPZ-ND - IC ADC 16BIT 1.33MSPS 48LFCSP AD7623ACPZRL-ND - IC ADC 16BIT 1.33MSPS 48LFCSP AD7623ASTZRL-ND - IC ADC 16BIT 1.33MSPS DFF 48LQFP |
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AD7623
Rev. 0 | Page 26 of 28
MICROPROCESSOR INTERFACING
The AD7623 is ideally suited for traditional dc measurement
applications supporting a microprocessor, and ac signal
processing applications interfacing to a digital signal processor.
The AD7623 is designed to interface with a parallel 8-bit or
16-bit wide interface, or with a general-purpose serial port or
I/O ports on a microcontroller. A variety of external buffers can
be used with the AD7623 to prevent digital noise from coupling
into the ADC. The SPI Interface (ADSP-219x) section shows
the use of the AD7623 with an ADSP-219x SPI-equipped DSP.
SPI Interface (ADSP-219x)
Figure 42 shows an interface diagram between the AD7623 and
an SPI-equipped DSP, ADSP-219x. To accommodate the slower
speed of the DSP, the AD7623 acts as a slave device, and data
must be read after conversion. This mode also allows the daisy-
chain feature. The convert command could be initiated in
response to an internal timer interrupt.
The reading process can be initiated in response to the end-of-
conversion signal (BUSY going low) using an interrupt line of
the DSP. The serial peripheral interface (SPI) on the ADSP-219x
is configured for master mode (MSTR) = 1, clock polarity bit
(CPOL) = 0, clock phase bit (CPHA) = 1, and SPI interrupt
enable (TIMOD) = 00 by writing to the SPI control register
(SPICLTx).
It should be noted that to meet all timing requirements, the SPI
clock should be limited to 17 Mb/s allowing it to read an ADC
result in less than 1 μs. When a higher sampling rate is desired,
use one of the parallel interface modes.
05574-042
BUSY
CS
SDOUT
SCLK
CNVST
AD7623*
PFx
SPIxSEL (PFx)
MISOx
SCKx
PFx OR TFSx
ADSP-219x*
*ADDITIONAL PINS OMITTED FOR CLARITY
DVDD
SER/PAR
EXT/INT
RD
INVSCLK
Figure 42. Interfacing the AD7623 to SPI Interface
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| EVAL-AD7623EDZ | 功能描述:BOARD EVAL FOR AD7623 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7625EDZ | 功能描述:数据转换 IC 开发工具 Eval Board 16-BIT 5MSPS ADC I.C 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 |
| EVAL-AD7626EDZ | 功能描述:数据转换 IC 开发工具 Eval Board 16 Bit 10MSPS DIFF ADC 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 |
| EVAL-AD7631CBZ | 制造商:Analog Devices 功能描述:EVALUATION BOARD - Boxed Product (Development Kits) |
| EVAL-AD7631EDZ | 功能描述:BOARD EVAL FOR AD7631 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
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