Ultra-Mini SMD IR Receivers from VishayJanuary 23, 2009
The ultra-miniature SMD IR receivers have the industry's best sensitivity-to-size ratio, and fixed gain devices have a 300 µs reaction time.
MALVERN, PA--(Marketwire) - New SMD infrared (IR) receiver products released this month by Vishay Intertechnology, Inc. (NYSE: VSH) include the ultra-miniature TSOP75xxx series and the fixed gain TSOP5038.
Vishay's TSOP75xxx ultra-miniature SMD IR receivers offer the industry's best sensitivity-to-size ratio with a typical irradiance of 0.15 mW/m2, an ultra-low supply current of 0.35 mA typical at 3.3 V, and a tiny 3.0 mm profile in side view.
The receivers are offered in three automatic gain control (AGC) versions. The TSOP752xx is compatible with all common IR remote control data formats. The TSOP753xx and TSOP754xx suppress almost all spurious pulses from energy-saving fluorescent lamps, including dimmed LCD backlighting, and are compatible with short-burst or long-burst codes, respectively.
The design of the TSOP75xxx series makes it possible to shrink the IR receivers up to 66 % by volume compared to other SMD devices, while at the same time increasing the sensitivity and offering a wide receiving angle. Compatible with top- or side-view use, the devices are insensitive to supply voltage and ripple noise and offer an improved immunity against ambient light.
The TSOP75xxx series was designed to fulfill the needs of current and future consumer and laptop designs, where small space and re-flow solder technology are required. The devices are optimized for remote control and data transmission applications in small handheld electronics, such as notebook computers, digicams, and portable music and video players, as well as set-top boxes, thin LCD TVs, game controllers, navigation systems, and USB-TV.
Vishay's TSOP5038 fixed gain SMD IR receiver features fast reaction times, insensitivity to supply voltage ripple and EMI noise, and low supply current of 0.85 mA typical at 5 V for sensor and light barrier systems.
In mid- to long-range reflective sensor systems and IR light barrier systems, such as garage door openers, urinals, and other "presence of object" systems, variable gain is not desired, as this greatly complicates the design. In addition, sensor applications require fast reaction times in order to operate at a continuous 38 kHz signal.
The TSOP5038 solves both of these problems by offering a high fixed gain in all ambient light environments, and allows a short burst repetition time that results in a fast 300 µs reaction time. Continuous signals at 38 kHz or 38 kHz bursts may be used to drive the IR emitter. To simplify the design, an internal IR filter suppresses visible light.
To further simplify designs, the TSOP5038 features a photo detector and preamplifier in one package. The highly sensitive device offers a 0.5 mW/m2 typical irradiance and a supply voltage from 2.7 V to 5.5 V. The receiver is complaint with RoHS 2002/95/EC and WEEE 2002/96/EC.
About Vishay Intertechnology
Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide "one-stop shop" service have made Vishay a global industry leader.
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