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EM91450 Datasheet(PDF) 13 Page - ELAN Microelectronics Corp

Part # EM91450
Description  TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
PDF  24 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM91450 Datasheet(HTML) 13 Page - ELAN Microelectronics Corp

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EM91450 SERIES
TONE/PULSE DIALER WITH LCD INTERFACE
AND I.P.P. DETECT FUNCTION
13
* This specification are subject to be changed without notice.
2.10.1999
TIMING DIAGRAM
Figure 1. Pulse mode operating timing
Figure 2. DTMF mode operating timing
HKS
KEY IN
KT
XMUTE
SDO
PO
DTMF
OSC.
Tdb
Tkt
2
3
Tm
Tidp
T
b
T
m
T
b
T
m
Tidp
Tdly
Hi-impedance
HKS
KEY IN
KT
XMUTE
SDO
PO
DTMF
OSC.
Tdb
2
3
Td
Titp
Titp
Hi-impedance



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