The TSSP58038 is a compact infrared detector module for presence sensing applications. It receives 38 kHz modulated signals and has a peak sensitivity of 940 Not for New Design - Alternative Available: New TSSP58038 (#82479). TSOP58038 www.vishay.com. Vishay Semiconductors. Rev. 1.3, 28-Mar-12. 1. Vishays TSSP4038, TSSP6038, and TSSP58038 eliminate these problems by featuring a fixed gain. With a fixed gain, the detection threshold and resulting To avoid over or under detection due to varying ambient light levels, Vishays. TSSP4038, TSSP58038 , TSSP6038, and TSSP57038 have a fixed gain. Once the Dec 5, 2014 Page 1. VISHAY SEMICONDUCTORS. Infrared Remote Control Receivers. Application Note. Vishays TSSP-AGC P Sensor Series.