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HT8870A - Dual Tone Multi Frequency

Description

Operational amplifier non-inverting input Operational amplifier inverting input Operational amplifier output terminal Reference voltage output terminal “1633 Hz signal detection disable” input Power down mode input Clock oscillator input Clock oscillator output Common “Output enable” input Three-sta

Features

  • - Supply voltage UCC = (2,5.
  • 5,5) V - No external filter is required - Low-cost 3,58 MHz resonator is used - 1633 Hz signal detection inhibit - 3 state data output - Power down mode - Temperature range -20 …+ 75 °C - Permissible electrostatic discharge potential 500V 18 18 1 DIP18 WSOP18 Rev. 00 HT8870A Pin number 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 Symbol VP VN GS VREF INH PWDN X1 X2 VSS OE DO D1 D2 D3 DV EST RT/GT VCC.

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Datasheet Details

Part number HT8870A
Manufacturer HTCSEMI
File Size 142.23 KB
Description Dual Tone Multi Frequency
Datasheet download datasheet HT8870A Datasheet
Additional preview pages of the HT8870A datasheet.

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Full PDF Text Transcription

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HT8870A Dual Tone Multi Frequency (DTMF) Microcircuit is purposed for receiving and decoding of tone pairs from tone-pulse dialers in frequency dialing mode. Microcircuit can be used in telecom systems, consumer electronic devices. Main features: - Supply voltage UCC = (2,5 – 5,5) V - No external filter is required - Low-cost 3,58 MHz resonator is used - 1633 Hz signal detection inhibit - 3 state data output - Power down mode - Temperature range -20 …+ 75 °C - Permissible electrostatic discharge potential 500V 18 18 1 DIP18 WSOP18 Rev.
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