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參數(shù)資料
| 型號(hào)： | AD9211-170EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
| 中文描述： | 10位，170/200/250 MSPS的1.8弗吉尼亞州/ D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 18/21頁 |
| 文件大?。?/td> | 310K |
| 代理商： | AD9211-170EB |
AD9211
Preliminary Technical Data
The length of the output data lines and loads placed on them
should be minimized to reduce transients within the AD9211.
These transients can degrade the converter’s dynamic performance.
The AD9211 also provides data clock output (DCO) intended for
capturing the data in an external register. The data outputs are
valid on the rising edge of DCO.
Rev. PrA | Page 18 of 21
The lowest typical conversion rate of the AD9211 is 40 MSPS.
At clock rates below 1 MSPS, the AD9211 will assume standby
mode.
RBIAS
The AD9211 requires the user to place a 10K
Ω
resistor between
the RBIAS pin and ground. This resister should have a 1%
tolerance, and is used to set the master current reference of the
ADC core.
AD9211 CONFIGURATION USING THE SPI
The AD9211 serial port interface allows the user to configure
the converter for specific functions or operations through a
structured register space inside the ADC. This gives the user
added flexibility to customize device operation depending on
the application. Addresses are accessed (programmed or read
back) serially in one-byte words. Each byte may be further
divided down into fields which are documented in the Memory
Map Section below.
There are three pins that define the serial port interface or SPI
to this particular ADC. They are the SPI SCLK / DFS, SPI SDIO
/ DCS, and CSB pins. The SCLK/DFS (serial clock) is used to
synchronize the read and write data presented the ADC.. The
SDIO / DCS (serial data input/output) is a dual purpose pin
that allows data to be sent and read from the internal ADC
memory map registers. The CSB or chip select bar is an active
low control that enables or disables the read and write cycles.
See Table X.
Table X. Serial Port Pins
Pin
Function
SCLK
SCLK (Serial Clock) is the serial shift clock in. SCLK is
used to synchronize serial interface reads and writes.
SDIO
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
RESET
Master device reset. When asserted, device assumes
default settings.
CSB (Chip Select Bar) is active low controls that gates
the read and write cycles.
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 X
and Table X. Table X. SPI Timing Diagram specifications
Spec
Name
Meaning
t
DS
Setup time between data and rising edge of SCLK
t
DH
Hold time between data and rising edge of SCLK
t
CLK
Period of the clock
t
S
Setup time between CSB and SCLK
t
H
Hold time between CSB and SCLK
t
HI
Minimum period that SCLK should be in a logic high
state
t
LO
Minimum period that SCLK should be in a logic low
state
During an instruction phase a 16bit 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 8bit 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 may be changed by changing the
configuration register. For more information about this feature
and others see SPI Doc at www.analog.com.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9211-200EB | 10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
| AD9211-250EB | 10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
| AD9211BCPZ-170 | 10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
| AD9211BCPZ-200 | 10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
| AD9211BCPZ-250 | 10-Bit, 170/200/250 MSPS 1.8 V A/D Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9211-200EB | 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 |
| AD9211-200EBZ | 功能描述:BOARD EVAL FOR AD9211-200 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| AD9211-250EB | 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 |
| AD9211-250EBZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 10-Bit 250 Msps ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| AD9211-300EBZ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 10-Bit 300 Msps ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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