EM91220 Ver la hoja de datos (PDF) - ELAN Microelectronics

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Fabricante

EM91220

TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE

ELAN Microelectronics 

EM91220 SERIES

TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE

HKS

KEY IN

KT

XMUTE

PM

SDO

PO

DTMF

OSC.

2

RD/P

3

Tp

Tidp

Tidp

Figure 5. Pause key operating timing

Hi-impedance

HKS

KEY IN

KT

XMUTE

PM

SDO

PO

DTMF

OSC.

HKS

KEY IN

KT

XMUTE

PM

SDO

PO

DTMF

OSC.

2

*/T

3

4

Tpt

Figure 6. Pulse to Tone (P→T) operating timing

F

Tdb

Tf

Tfp=300ms

Figure 7. Flash key operating timing

* This specification are subject to be changed without notice.

Hi-impedance

Hi-impedance

10.1.1997 13

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