Description

The IC T2525 is a complete IR receiver for data communication developed and optimized for use in carrier-frequency-modulated transmission applications. Its function can be described using the block diagram (see Figure 1). The input stage meets two main functions. First, it provides a suitable bias voltage for the PIN diode. Secondly, the pulsed photo-current signals are transformed into a voltage by a special circuit which is optimized for low-noise applications.

Features

• No External Components Except PIN Diode

• Supply-voltage Range: 4.5 V to 5.5 V

• Automatic Sensitivity Adaptation (AGC)

• Automatic Strong Signal Adaptation (ATC)

• Enhanced Immunity Against Ambient Light Disturbances

• Available for Carrier Frequencies between 30 kHz to 76 kHz; Adjusted by Zener Diode Fusing

• TTL and CMOS Compatible

• Suitable Minimum Burst Length ≥ 6 or 10 Pulses/Burst

Applications

• Audio Video Applications

• Home Appliances

• Remote Control Equipment