SA541 Datasheet, PDF (13/16 Pages) Sames – PULSE/DTMF SWITCHABLE DIALLERS

SA541
Figure 5: LD Mode Timing Diagram
t₁ = Pre-digit Pause (=t₅)
t₂ = Break Period (60ms or 67ms)
t = Make Period (40ms or 33ms)
3
t = Post-digit Make (= t )
4
3
t₅ = Inter-digit Pause (800ms or 500ms)
Figure 6: Detailed Timing for IMP Output
sames
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