TSL26727(2016) 데이터 시트보기 (PDF) - austriamicrosystems AG
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TSL26727 Datasheet PDF : 46 Pages
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TSL2672
Digital Proximity Detector
General Description
The TSL2672 family of devices provides proximity detection
when coupled with an external IR LED. The devices incorporate
a constant-current LED sink driver to pulse the external IR LED
and achieve very low average power consumption using the
low-power wait state with programmable wait time between
proximity measurements. In addition, the devices are
register-set and pin-compatible with the TSL2671 series and
include a number of new and improved features, such as
improved signal-to-noise and measurement accuracy. A
proximity offset register allows compensation for optical
system crosstalk between the IR LED and the sensor. To prevent
false measurements, a proximity saturation bit indicates that
the internal analog circuitry saturated. Interrupts have been
enhanced with the addition of a sleep-after-interrupt feature
that also allows for single-cycle operation.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value Of Using TSL2672
Key Benefits & Features
The benefits and features of TSL2672, Digital Proximity Detector
are listed below:
Benefits
Features
• Enables Operation in IR Light Environments
• Patented Dual-Diode Architecture
• Eliminates IR LED System Cross Talk
• Programmable Proximity Offset Adjustment
• Prevents False Proximity Detection in Bright Light • Proximity Saturation Indicator Bit
• Allows Multiple Power-level Selection without
External Passives
• Programmable LED Drive Current
• Proximity Detection with an Integrated LED Driver in a
Single Device
• Register Set- and Pin-Compatible with the TSL2x71 Series
• Proximity Detection
• Reduced Proximity Count Variation
• Programmable Offset Control Register
• Saturation Indicator
• Programmable Analog Gain and Integration Time
• Current Sink Driver for External IR LED
• 16,000:1 Dynamic Range
ams Datasheet
[v1-00] 2016-Mar-23
Page 1
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