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BU8877 - Call Progress Tone Decoder

Description

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).

Features

  • 1) No malfunction by voice signal 2) Dual tone detection (350Hz and 440Hz) 3) Wide dynamic range 4) 3.58MHz crystal resonator BU8877F DIP8.

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Datasheet preview – BU8877

Datasheet Details

Part number BU8877
Manufacturer ETC
File Size 124.20 KB
Description Call Progress Tone Decoder
Datasheet download datasheet BU8877 Datasheet
Additional preview pages of the BU8877 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com 99W121A Call Progress Tone Decoder for Telephone BU8877/F Description 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). Dimension(Units:mm) BU8877 Features 1) No malfunction by voice signal 2) Dual tone detection (350Hz and 440Hz) 3) Wide dynamic range 4) 3.58MHz crystal resonator BU8877F DIP8 Applications Telephone, Codeless telephone and Facsimile for the U.S. SOP16 Absolute Maximum Ratings (Ta=25˚C) Parameter Power supply voltage Power dissipation DIP8 SOP16 Symbol VCC Pd Topr Tstg Limits 7 800 300 *1 *2 Unit V mW ˚C ˚C Operating temperature range Storage temperature range -30 ~ +80 -55 ~ +125 *1 Derating:8.
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