- 您现在的位置：买卖IC网 > Sheet目录985 > ISL29018IROZ-EVALZ (Intersil)EVALUATION BOARD FOR ISL29018
ISL29018
converted into current. With ADC, the current is converted to an
unsigned n-bit (up to 16 bits) digital output. The output reading is
inversely proportional to the square of the distance between the
sensor and the object.
Interrupt Function
The active low interrupt pin is an open drain pull-down
configuration. There is also an interrupt bit in the I 2 C register. The
interrupt serves as an alarm or monitoring function to determine
whether the ambient light level or the proximity detection level
exceeds the upper threshold or goes below the lower threshold.
The user can also configure the persistency of the interrupt. This
reduces the possibility of false triggers, such as noise or sudden
spikes in ambient light conditions. An unexpected camera flash,
Example:
State 0: Ambient light
Operation Mode = ALS continuous
Interrupt Persist = 1
Resolution = 16 bits
Range = 1000 Lux
Scheme, Frequency & IRDR = X (DONT CARE)
Threshold High = 100 Lux
Threshold Low = 10 Lux
Command1 = 101x xx00
Command2 = xxxx 0000
Hi Threshold = 655
Lo Threshold = 66
State 1: Proximity - interrupt when NEAR
Operation Mode = Proximity continuous
Interrupt Persist = 4
Resolution = 12 bits
Range = 1
for example, can be ignored by setting the persistency to 8
integration cycles.
Changing States - Avoiding Unintentional
Interrupts
A common application for the ISL29018 is alternating between
ambient light and proximity measurements. The two states have
different command words and threshold settings. To avoid an
unintentional interrupt the device should be powered down before
the state change. The conversion should not be enabled until the
new command word & thresholds have been set. A safe sequence is
to set the operation mode to power-down, set the command word
and thresholds to the new state, then set the operation mode to
desired setting.
Off:
Write Byte Command1 = 0
State 1 setup:
Write Word (Command 1&2) = B401h
Write Word (Hi Threshold) = 05FFh
Write Word (Lo Threshold) = F800h
On:
Write Byte Command1 = E1h
Sequence State 1 -> State 0
Off:
Write Byte Command1 = 0
State 0 setup:
Write Word (Command 1&2) = B000h
Write Word (Hi Threshold) = 028Fh
Write Word (Lo Threshold) = 0042h
On:
Write Byte Command1 = A0h
Scheme = 1
Frequency = 0
IRDR = 100ma
Threshold High = NEAR
Threshold Low = OFF
Command1 = 111x xx01
Command2 = 1011 0100
Hi Threshold = 1535 (75% of 2047)
Lo Threshold = -2048 (OFF)
Sequence State 0 -> State 1
FIGURE 2. CHANGING STATES FLOW EXAMPLE
8
FN6619.4
October 8, 2012
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
ISL29020IROZ-EVALZ
EVALUATION BOARD FOR ISL29020
ISL29021IROZ-EVALZ
EVAL BOARD FOR ISL29021IROZ
ISL29023IROZ-EVALZ
EVALUATION BOARD ISL29023IROZ
ISL29028AIROZ-EVALZ
BOARD EVALUATION FOR ISL29028
ISL29028IROZ-EVALZ
EVAL BOARD FOR ISL29028IROZ
ISL29030AIROZ-EVALZ
BOARD EVAL FOR ISL29030A
ISL29101IROZ-EVALZ
EVALUATION BOARD FOR ISL29101
ISL29102IROZ-EVALZ
EVALUATION BOARD FOR ISL29102
相关代理商/技术参数
ISL29018IROZ-T7
功能描述:IC SENSOR AMB LGT-DTGL I2C 8ODFN RoHS:是 类别:传感器，转换器 >> 光学 - 光电探测器 - 环境光传感器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 产品变化通告:Product Discontinuation 25/Jun/2012 标准包装:2,500 系列:- 带接近传感器:无 波长:- 电源电压:1.7 V ~ 2 V 电流 - 暗（标准）:- 电流 - 光（典型值）:- 输出类型:数字 - I²C 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UDFN 裸露焊盘 包装:带卷 (TR)
ISL29020IROZ-EVALZ
功能描述:EVALUATION BOARD FOR ISL29020 RoHS:是 类别:编程器，开发系统 >> 评估板 - 传感器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:1 系列:-
ISL29020IROZ-T7
功能描述:光学数位转换器 ISL29020IROZ LW PWR DIGTL OUTPUT LT SNSR RoHS:否 制造商:ams 数据总线宽度: 峰值波长:470 nm 最大工作频率: 工作电源电压: 工作电流: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:Chipscale-6 封装:Reel
ISL29020IROZ-T7
制造商:Intersil Corporation 功能描述:IC LIGHT TO DIGITAL OUTPUT SENSOR 制造商:Intersil Corporation 功能描述:IC, LIGHT TO DIGITAL OUTPUT SENSOR
ISL29020IROZ-T7A
功能描述:光学数位转换器 ISL29020IROZ LW PWR DIGTL OUTPUT LT SNSR RoHS:否 制造商:ams 数据总线宽度: 峰值波长:470 nm 最大工作频率: 工作电源电压: 工作电流: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:Chipscale-6 封装:Reel
ISL29021IROZ-EVALZ
功能描述:EVAL BOARD FOR ISL29021IROZ RoHS:是 类别:编程器，开发系统 >> 评估板 - 传感器 系列:* 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:1 系列:-
ISL29021IROZ-T7
功能描述:近程传感器 ISL29021IROZFREE DIGITL PROX SNSR RoHS:否 制造商:Vishay Semiconductors 感应方式:Optical 感应距离:1 mm to 200 mm 电源电压:2.5 V to 3.6 V 安装风格:SMD/SMT 输出配置:Digital 最大工作温度:+ 85 C 最小工作温度:- 25 C 系列:VCNL3020
ISL29022IROZ-EVALZ
制造商:Intersil Corporation 功能描述:ISL29022IROZ-EVALZ (PB-FREE ) EVALUATION BOARD - ROHS COMPLI - Bulk 制造商:Intersil Corporation 功能描述:BOARD EVAL FOR ISL29022