Malvern, Pa. Vishay Intertechnology, Inc. has released a series of surface-mount (SMD) infrared (IR) receiver modules that the company says offers the industry's highest sensitivity-to-size ratio. Designed for long-range operation in infrared remote control, data transmission, and light barrier applications, the TSOP85.. series is aimed at portable systems that require ultra-small components. Typical end products include handheld devices such as laptops, digicams and video equipment, music and video players, and navigation equipment.
The TSOP85.. receiver modules combine two photo detectors and a preamplifier in a top- or side-view surface mount package. The devices offer a compact footprint with a height of 3.3 mm in top view and 2.74 mm in side view, making them suitable for applications where space-savings is a key consideration.
In optical modules, decreasing the package size results in a reduction of lens size, which therefore reduces sensitivity and range, said Vishay. The TSOP85.. series, however, neutralizes this effect through the addition of a second lens and photodiode. In addition, the two-lens arrangement achieves a broader receiving angle than can be achieved with only one lens, said Vishay.
The TSOP85.. series offers a broad supply voltage range from 2.7 to 5.5 volts, seven standard carrier frequencies from 30 kHz to 56 kHz, and internal Automatic Gain Control (AGC) circuitry, providing enhanced immunity against optical noise and other ambient disturbances. The series includes versions capable of operating with short-burst (≥6 cycles/burst) transmission codes and data rates up to 4000 bit/s. Other versions exhibit immunity to even severe environmental noise.
Pricing: $1.50 each in small quantities for U.S. delivery.
Availability: Samples and production quantities are available now, with lead times of six weeks for larger orders.
Vishay Intertechnology, 1-619-336-0860, www.vishay.com