Timing Waveforms
1. Timing Waveforms in PULSE Mode:
NT91315XL Series
THK: Pick-Up Pause, 824ms
Td: Delay time or Key valid to dialing signal out, typically 2ms
TIDP: Inter-digit pause time
TKTO: Key-in tone duration
TKD: Debouncing time
Note: " HK " or "HFO" indicates that the chip is active when hook switch HK goes low or Hands-Free control output HFO
goes high.
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