Infrared 25 kHz 3D Glasses Receiver Modules Bowed
August 3, 2010
MALVERN, PA.: Vishay
Intertechnology is jumping into 3DTV with a receiver module for 3DTV shutter
glasses. The company is known for manufacturing discrete semiconductors and passive
electronic components--and expanding into growing technology realms. Vishay
says its new infrared receivers for 3DTV glasses function at 25 kHz, “lower
than that used by standard remote-control systems,” which helps avert
interference from TV and set-top remote controls transmitting at 30 to 56 kHz.
“Because TV remote control emitters and receivers operate at a wavelength of
940 nm, the TSOP75D25 and TSOP35D25 are designed to receive the 3D
synchronization signals from an 830 nm or 850 nm emitter, further avoiding the
possibility of interference,” the company says.
Vishay is offering two modules--the
TSOP7D25, and the TSOP35D25. Both are
surface-mount devices that accommodate a viewing angle of 50 degrees, according
to Vishay. TSOP75D25 measures 2.3-by-3-by-6.8 mm and has dual lenses while the
TSOP35D25 measures 4-by-5.3-by-7.5 mm and has a single lens. Samples are
available; production orders have a lead time of six to eight weeks. Pricing
for U.S. delivery in small quantities is $1.