EM91450A EMC [ELAN Microelectronics Corp], EM91450A Datasheet - Page 13
EM91450A
Manufacturer Part Number
EM91450A
Description
TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Manufacturer
EMC [ELAN Microelectronics Corp]
Datasheet
1.EM91450A.pdf
(24 pages)
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TIMING DIAGRAM
* This specification are subject to be changed without notice.
XMUTE
KEY IN
XMUTE
KEY IN
DTMF
DTMF
HKS
OSC.
HKS
SDO
OSC.
SDO
PO
KT
KT
PO
Tdb
Tdly
2
2
Tdb
Td
Tidp
Figure 2. DTMF mode operating timing
Figure 1. Pulse mode operating timing
Tkt
Tm
Titp
T
b
m
T
T
b
m
T
TONE/PULSE DIALER WITH LCD INTERFACE
3
Tidp
3
AND I.P.P. DETECT FUNCTION
Titp
Hi-impedance
EM91450 SERIES
Hi-impedance
2.10.1999
13
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