W91320 データシートの表示（PDF） - Winbond

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W91320

TONE/PULSE DIALER WITH REDIAL FUNCTION

Winbond 

W91320N SERIES

Timing Waveforms, continued

HKS

HFI

H KEY

HFO

T/P MUTE

H/P MUTE

CHIP ENBLE

ON HOOK

High

Figure 3c. Handfree and Hold Timing Diagram

Note: Changing the state of the HKS signal from high to low will initialize the HFO and H/P MUTE signals.

HKS

KEY IN

DP

HFI

HFO

T/P MUTE

H/P MUTE

DTMF

OSC.

< 600 mS

R

R

300 mS

TKID

TKID

TRB

MB

TOFD TFKD

TPDP

TIDP

Low

OSCILLATION

TIDP

MB

TRP

TPDP

Figure 4. One-key Redial Timing Diagram (Pulse Mode)

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