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參數(shù)資料
| 型號： | AD9211-300EBZ |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 10-Bit, 200 MSPS/250 MSPS/300 MSPS, 1.8 V Analog-to-Digital Converter |
| 中文描述： | 10位，200 MSPS/250 MSPS/300 MSPS的，1.8 V模擬到數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 23/28頁 |
| 文件大?。?/td> | 1180K |
| 代理商： | AD9211-300EBZ |
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AD9211
Table 9. Serial Port Pins
Mnemonic
SCLK
Rev. 0 | Page 23 of 28
HARDWARE INTERFACE
The pins described in Table 9 comprise the physical interface
between the user’s programming device and the serial port of
the AD9211. All serial pins are inputs with an open-drain
configuration and should be tied to an external pull-up or pull-
down resistor (suggested value of 10 kΩ).
This interface is flexible enough to be controlled by either
PROMS or PIC mirocontrollers as well. This provides the user
with an alternate method to program the ADC other than a SPI
controller.
If the user chooses not to use the SPI interface, some pins serve
a dual function and are associated with a specific function when
strapped externally to AVDD or ground during device power
on. The Configuration Without the SPI section describes the
strappable functions supported on the AD9230.
CONFIGURATION WITHOUT THE SPI
In applications that do not interface to the SPI control registers,
the SPI SDIO/DCS and SPI SCLK/DFS pins can alternately
serve as standalone CMOS-compatible control pins. When the
device is powered up, it is assumed that the user intends to use
the pins as static control lines for the duty cycle stabilizer. In
this mode, the SPI CSB chip select should be connected to
ground, which disables the serial port interface.
Function
SCLK (Serial Clock) is the serial shift clock in.
SCLK is used to synchronize serial interface
reads and writes.
SDIO (Serial Data Input/Output) is a dual-purpose
pin. The typical role for this pin is an input and
output depending on the instruction being sent
and the relative position in the timing frame.
CSB (Chip Select Bar) is an active low control that
gates the read and write cycles.
Master Device Reset. When asserted, device
assumes default settings. Active low.
SDIO
CSB
RESET
The falling edge of the CSB, in conjunction with the rising edge
of the SCLK, determines the start of the framing. An example of
the serial timing and its definitions can be found in Figure 51
and Table 11.
During an instruction phase, a 16-bit instruction is transmitted.
Data then follows the instruction phase and is determined by
the W0 and W1 bits, which is 1 or more bytes of data. All data is
composed of 8-bit words. The first bit of each individual byte of
serial data indicates whether this is a read or write command.
This allows the serial data input/output (SDIO) pin to change
direction from an input to an output.
Data may be sent in MSB or in LSB first mode. MSB first is
default on power-up and can be changed by changing the con-
figuration register. For more information about this feature and
others, see the
AN-877
,
Interfacing to High Speed ADCs via SPI
.
Table 10. Mode Selection
Mnemonic
SPI SDIO/DCS
External
Voltage
AVDD
AGND
AVDD
AGND
Configuration
Duty cycle stabilizer enabled
Duty cycle stabilizer disabled
Twos complement enabled
Offset binary enabled
SPI SCLK/DFS
DON’T CARE
DON’T CARE
DON’T CARE
DON’T CARE
SDIO
SCLK
CSB
t
S
t
DH
t
HI
t
CLK
t
LO
t
DS
t
H
R/W
W1
W0
A12
A11
A10
A9
A8
A7
D5
D4
D3
D2
D1
D0
0
Figure 51. Serial Port Interface Timing Diagram
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相關代理商/技術參數(shù) |
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| AD9211BCPZ-170 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
| AD9211BCPZ-200 | 功能描述:IC ADC 10-BIT 200MSPS 56-LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
| AD9211BCPZ-250 | 功能描述:IC ADC 10-BIT 250MSPS 56-LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD9211BCPZ-300 | 功能描述:IC ADC 10BIT 300MSPS 56LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD9212 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Octal, 10-Bit, 40/65 MSPS Serial LVDS 1.8 V A/D Converter |
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