DESCRIPTION

The µ PC2807 and 2807A are semiconductors integrated circuit developed as preamplifiers for the receiver module of infrared remote controllers. These preamplifiers can be directly connected to a PIN photodiode, and integrate a high-gain first stage amplifier, limiter, bandpass filter, detector circuit, and waveform-shaping circuit on a single chip.

FEATURES

• Only PIN photodiode required as an external component.

• Following carrier frequencies (fO) selectable (five types):

µ PC2807 : fO = 32.7, 36.0, 36.7, 37.9 kHz

µ PC2807A : fO = 40.0 kHz

• Fixed trap frequency

fT = 54 kHz

• Active-low output

• Supplied in form of wafer

APPLICATION

• Receiver module of infrared remote controller