IN9270N Ver la hoja de datos (PDF) - Integral Corp.

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IN9270N

DTMF RECEIVER High-Performance Silicon-Gate CMOS

Integral Corp. 

IN9270

Figure 6. Differential Input Configuration

TIMING DIAGRAM

A. Short tone bursts: detected. Tone duration is invalid.

B. Tone #n is detected. Tone duration is valid. Decoded to outputs.

C. End of tone #n is detected and validated.

D. 3 State outputs disabled (high impedance).

E. Tone #n+1 detected. Tone duration is valid. Decoded to outputs.

F. Tristate outputs are enabled. Acceptable drop out of tone #n+1 does not register at outputs.

G. End of tone #n+1 is detected and validated.

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