Call Progress Tone Decoder For Telephone

The BU8877 and BU8877F are ICs that detect dial Tones from a call progress signal used in the telephone lines. The ICs detect dual signals 350Hz(from 345 to 355Hz)and 440Hz(from 435 to 445Hz). By Unkown
BU8877 's PackagesBU8877 's pdf datasheet
BU8877F




BU8877 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
BU8877 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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