- 您现在的位置：买卖IC网 > PDF目录17045 > EVAL-AD7634EDZ (Analog Devices Inc)BOARD EVAL FOR AD7634 PDF资料下载
参数资料
| 型号： | EVAL-AD7634EDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 24/32页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD7634 |
| 标准包装： | 1 |
| 系列： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页
AD7634
Data Sheet
Rev. B | Page 30 of 32
SCIN
SCCLK
WARP
START
TEN
123
67
BUSY
HW/SW = 0
INVSCLK = 0
CNVST
SCCS
t8
t36
t35
t37
4
PD
5
BIPOLAR
IMPULSE
OB/2C
X
89
MODE[1:0] = 3
BIPOLAR = 0 OR 1
TEN = 0 OR 1
IMPULSE = 0 OR 1
WARP = 0 OR 1
PD = 0
t33
t34
t31
X
t31
06
40
6-
0
44
Figure 47. Serial Configuration Port Timing
MICROPROCESSOR INTERFACING
The AD7634 is ideally suited for traditional dc measurement
applications supporting a microprocessor, and ac signal proc-
essing applications interfacing to a digital signal processor. The
AD7634 is designed to interface with a parallel 8-bit or 18-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 AD7634 to prevent digital noise from coupling into the ADC.
SPI Interface
The AD7634 is compatible with SPI and QSPI digital hosts
and DSPs, such as Blackfin ADSP-BF53x and ADSP-218x/
ADSP-219x. Figure 48 shows an interface diagram between
the AD7634 and the SPI-equipped ADSP-219x. To accom-
modate the slower speed of the DSP, the AD7634 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) = 0 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 Mbps allowing it to read an ADC
result in less than 1.1 μs. When a higher sampling rate is desired,
use one of the parallel interface modes.
BUSY
CS
SDOUT
SDCLK
CNVST
AD7634*
PFx
SPIxSEL (PFx)
MISOx
SCKx
PFx OR TFSx
ADSP-219x*
*ADDITIONAL PINS OMITTED FOR CLARITY.
DVDD
MODE[1:0]
EXT/INT
RD
INVSCLK
06
40
6-
0
46
Figure 48. Interfacing the AD7634 to SPI Interface
相关PDF资料 |
PDF描述 |
|---|---|
| VE-BWP-EY | CONVERTER MOD DC/DC 13.8V 50W |
| STD01W-P | WIRE & CABLE MARKERS |
| VE-BWN-EY | CONVERTER MOD DC/DC 18.5V 50W |
| VE-BWM-EY | CONVERTER MOD DC/DC 10V 50W |
| STD01W-Z | WIRE & CABLE MARKERS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7641CB | 制造商:Analog Devices 功能描述:EVAL FOR AD7641CB - Bulk |
| EVAL-AD7641CB1 | 制造商:AD 制造商全称:Analog Devices 功能描述:18-Bit, 2 MSPS SAR ADC |
| EVAL-AD7641CBZ | 功能描述:BOARD EVALUATION FOR AD7641 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:PulSAR® 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-AD7641EDZ | 功能描述:BOARD EVAL FOR AD7641 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-AD7643CB | 制造商:Analog Devices 功能描述:EVAL BD FOR AD7643 - Bulk |
发布紧急采购，3分钟左右您将得到回复。