EM91455C View Datasheet(PDF) - ELAN Microelectronics
Part Name
Description
MFG CO.
'EM91455C' PDF : 24 Pages View PDF
EM91455 SERIES
TONE/PULSE DIALER WITH LCD INTERFACE
AND I.P.P. DETECT FUNCTION
TIMING DIAGRAM
HKS
KEY IN
KT
XMUTE
2
Tdb
Tkt
SDO
PO
DTMF
OSC.
Tm
Tidp
T T TT
b m bm
Tdly
3
Tidp
Figure 1. Pulse mode operating timing
Hi-impedance
HKS
KEY IN
KT
XMUTE
SDO
PO
DTMF
OSC.
2
3
Tdb
Td
Titp
Figure 2. DTMF mode operating timing
* This specification are subject to be changed without notice.
Titp
Hi-impedance
9.24.1998 13
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