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參數(shù)資料
| 型號： | XE8000EV120 |
| 廠商： | Semtech |
| 文件頁數(shù)： | 21/108頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR SX8722I070TRLF |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ZoomingADC™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | I²C |
| 工作溫度： | -40°C ~ 125°C |
| 已用 IC / 零件： | SX8722 |
| 已供物品： | 板，CD |
| 產(chǎn)品目錄頁面： | 585 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | SX8722I070LFDKR-ND - IC ZOOMING ADC 10BIT 16CH 44MLPQ SX8722I070LFCT-ND - IC ZOOMING ADC 10BIT 16CH 44MLPQ SX8722I070LFTR-ND - IC ZOOMING ADC 10BIT 16CH 44MLPQ |
| 其它名稱： | XM8000EV120 XM8000EV120-ND |
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ACS - Revision 4.2
October 2008
2008 Semtech Corp.
www.semtech.com
Page 2
Section
Page
Table of contents
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8722
High gain acquisition for sensor interface
1.
Specifications........................................................................................................................................................... 6
1.1.
Absolute Maximum Ratings ............................................................................................................................. 6
1.2.
Operating conditions ........................................................................................................................................ 6
1.3.
ZoomingADC Specifications ............................................................................................................................ 7
2.
Pin configuration and marking information ............................................................................................................ 10
2.1.
Pin configuration ............................................................................................................................................ 10
2.2.
Marking information ....................................................................................................................................... 10
3.
Pin Description....................................................................................................................................................... 11
4.
Timing Characteristics ........................................................................................................................................... 13
4.1.
I2C timing Waveforms.................................................................................................................................... 13
4.2.
Time specification without the 32.768 kHz Xtal ............................................................................................. 14
4.3.
Start-up time with the 32.768 kHz Xtal presence........................................................................................... 14
4.4.
Changing power mode by pin signal.............................................................................................................. 14
4.5.
Changing power mode by I2C command....................................................................................................... 15
5.
Circuit description .................................................................................................................................................. 16
5.1.
Detailed bloc diagram .................................................................................................................................... 16
5.2.
Functional description .................................................................................................................................... 16
5.3.
ZoomingADC ................................................................................................................................................. 19
6.
Access the SX8722 ............................................................................................................................................... 20
6.1.
Description ..................................................................................................................................................... 20
6.2.
SX8722 configuration..................................................................................................................................... 20
7.
I2C Commands...................................................................................................................................................... 20
8.
Serial communication ............................................................................................................................................ 21
8.1.
Write data direct............................................................................................................................................. 21
8.2.
Write data masked ......................................................................................................................................... 22
8.3.
Read data ...................................................................................................................................................... 22
8.4.
Other commands ........................................................................................................................................... 23
8.5.
Unknown commands ..................................................................................................................................... 23
8.6.
Reading data after a measurement. .............................................................................................................. 23
9.
Predefined settings ................................................................................................................................................ 24
9.1.
Introduction .................................................................................................................................................... 24
9.2.
Features covered by predefined settings....................................................................................................... 24
9.3.
Input multiplexers........................................................................................................................................... 25
9.3.1.
Overview ................................................................................................................................................. 25
9.3.2.
Input channel selection ........................................................................................................................... 25
9.3.3.
Reference channel selection................................................................................................................... 26
9.3.4.
Application example................................................................................................................................ 26
9.4.
Programmable gain amplifier settings............................................................................................................ 28
9.4.1.
Overview ................................................................................................................................................. 28
Not
Recommended
for
New
Designs
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