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DATA BULLETIN
MX623 Line-Powered Call Progress Tone Detector
• MX•COM MiXed Signal CMOS
• Custom Tone Decoder (13 Call-Progress Frequencies Recognized)
• Operates to a 3.579545MHz Telephone System Clock
• Operates Under Simple Logic or µProcessor System Control
PRELIMINARY INFORMATION
• Measures Call Progress Tone Frequencies (‘Busy’, ‘Dial’, ‘Fax-Tone’ etc.)
• Telephone, PABX, Fax and Dial-Up Modem Applications
• Low-Power Requirement (600µA at 3.
MX623 Datasheet
