參數(shù)資料
型號: XE8000EV120
廠商: Semtech
文件頁數(shù): 48/108頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR SX8722I070TRLF
標準包裝: 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
ACS - Revision 4.2
October 2008
2008 Semtech Corp.
www.semtech.com
Page 44
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8722
High gain acquisition for sensor interface
11.4.3. Filter size register
This register is present in each configuration; the bits 0 to 7 are controlling the filter size.
Table 29. Filter size registers; addresses 0x11, 0x31, 0x51, 0x71
This register contains the number of samples used for the filtering.
Note that for a moving average filtering, this number is limited to 10.
(Putting a higher value will be interpreted as 10.)
11.5. Alarms
The SX8722 offers two alarms pins that have configurable on & off thresholds; these thresholds are on 16 bits.
Each configuration register set has 2 alarms, which can be enabled, when more than one configuration is using the same
alarm pin, logical function is interacting between the two alarms sources. This condition can be a logical OR (default) or a
logical AND.
11.5.1. Configuration register - alarms
The bits 2 & 3 enable the alarm 1 & 2 when set to 1.
Table 30. Alarm enabling in configuration registers; addresses 0x10, 0x30, 0x50, 0x70
11.5.2. Alarm threshold registers
Table 31. Alarm threshold registers; addresses 0x12 to 0x19, 0x32 to 0x39, 0x52 to 0x59 and 0x72 to 0x79
Register
76543210
CxFParam
Filter size [7:0]
Register
76543210
CxSXCfg
reserved
FILTER TYPE [2:0]
ALRM1
ALRM2
SINGLE
CONT
Registers
76543210
CxAlrm1OnMsb
S1ALRM1ON
CxAlrm1OnLsb
S1ALRM1ON
CxAlrm1OffMsb
S1ALRM1OFF
CxAlrm1OffLsb
S1ALRM1OFF
CxAlrm2OnMsb
S1ALRM2ON
CxAlrm2OnLsb
S1ALRM2ON
CxAlrm2OffMsb
S1ALRM2OFF
CxAlrm2OffLsb
S1ALRM2OFF
Not
Recommended
for
New
Designs
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