- 您现在的位置：买卖IC网 > Datasheet目录57 > TSL237T (AMS-TAOS USA Inc)IC LIGHT TO FREQUENCY CONV 4-TMB Datasheet资料下载
参数资料
| 型号： | TSL237T |
| 厂商： | AMS-TAOS USA Inc |
| 文件页数： | 6/13页 |
| 文件大小： | 621K |
| 描述： | IC LIGHT TO FREQUENCY CONV 4-TMB |
| 标准包装： | 1 |
| 传感器类型： | 光转频率转换器 |
| 输出类型： | 数字 |
| 其它名称： | TSL237-TDKR |
TSL237T
HIGH-SENSITIVITY
LIGHT-TO-FREQUENCY CONVERTER
TAOS055J DECEMBER 2007
5
The LUMENOLOGY r Company
r
r
Copyright E 2007, TAOS Inc.
www.taosinc.com
APPLICATION INFORMATION
Power-Supply Considerations
Power-supply lines must be decoupled by a 0.01-糉 to 0.1-糉 capacitor with short leads placed close to the
TSL237T (Figure 9). A low-noise power supply is required to minimize jitter on output pulse.
TSL237T
Timer/Port
MCU
0.1 ?/SPAN>F
V
DD
V
DD
OUT
GND
OE
Figure 9. Typical TSL237T Interface to a Microcontroller
Device Operational Details
The frequency at the output pin (OUT) is given by:
f
O
= f
D
+ (R
e
) (E
e
)
where:
f
O
is the output frequency
f
D
is the output frequency for dark condition (E
e
= 0)
R
e
is the device responsivity for a given wavelength of light given in kHz/(糤/cm
2
)
E
e
is the incident irradiance in 糤/cm
2
f
D
is a constant error term in the output frequency calculation resulting from leakage currents, and is
independent of light intensity. The TSL237T die is trimmed to minimize the magnitude of this dark frequency
component so that it can be neglected in the transfer function calculation. In many applications, measurement
of the actual dark frequency may be impractical due to measurement times ranging from several seconds to
several minutes, and the fact that some devices may never transition (zero dark frequency).
Input Interface
A low-impedance electrical connection between the device OE
terminal and the device GND terminal is required
for improved noise immunity.
Output Interface
The output of the device is designed to drive a CMOS logic input over short distances. If lines greater than 12
inches in length are used on the output, a buffer or line driver is recommended.
相关PDF资料 |
PDF描述 |
|---|---|
| TSL238D-TR | IC LIGHT TO FREQUENCY CONV 8SOIC |
| TSL238T | IC LIGHT TO FREQUENCY CONV 4-TMB |
| TSL245RSM-LF | IC LIGHT TO FREQUENCY CONV 3SMD |
| TSL252RSM-LF | IC LIGHT TO VOLTAGE SENSOR 3SMD |
| TSL253RSM-LF | IC LIGHT TO VOLTAGE SENSOR 3SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TSL238 | 制造商:TAOS 制造商全称:TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 功能描述:HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER |
| TSL238D | 功能描述:光频率和光电压 Light to Frequency Converter RoHS:否 制造商:ams 峰值波长:1000 nm 工作电源电压:5 V 最大工作温度:+ 85 C 最小工作温度:- 25 C 安装风格: 封装 / 箱体: |
| TSL238D-TR | 功能描述:光频率和光电压 Light to Frequency High Sensitivity RoHS:否 制造商:ams 峰值波长:1000 nm 工作电源电压:5 V 最大工作温度:+ 85 C 最小工作温度:- 25 C 安装风格: 封装 / 箱体: |
| TSL238T | 功能描述:光频率和光电压 LIGHT TO FREQ CONV RoHS:否 制造商:ams 峰值波长:1000 nm 工作电源电压:5 V 最大工作温度:+ 85 C 最小工作温度:- 25 C 安装风格: 封装 / 箱体: |
| TSL240-124 | 制造商:Traco Power 功能描述:TSL univ input DIN rail SMPS,24-28V 240W |
发布紧急采购，3分钟左右您将得到回复。