W91820ALN Просмотр технического описания (PDF) - Winbond

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W91820ALN

13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

Winbond 

W91820N SERIES

TIMING WAVEFORMS

HKS

KEY IN

DP

T/P MUTE

H/P MUTE

KT

DTMF

OSC.

4

TKID

M

B

TPDP

2

TIDP M B

TIDP

LOW

OSC.

2

TKID

TIDP

TPDP

OSC.

Figure 1(a). Pulse Mode Tming Diagram (Normal dialing without lock function)

HKS

KEY IN

DP

T/P MUTE

(long mute)

H/P MUTE

DTMF

OSC.

300 mS

4

TFKD

MB

2

T IDP

MB

TIDP

LOW

OSC.

2

TKID

TIDP

TPDP

OSC.

Figure 1(b). Pulse Mode Timing Diagram (Normal dialing with lock function)

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