EM91203A EMC [ELAN Microelectronics Corp], EM91203A Datasheet - Page 10

• Manufacturer Part Number: EM91203A
• Description: TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
• Manufacturer: EMC [ELAN Microelectronics Corp]

* This specification are subject to be changed without notice.
TIMING DIAGRAM
XMUTE
KEY IN
XMUTE
KEY IN
DTMF
DTMF
HKS
OSC.
HKS
OSC.
SDO
SDO
KT
PM
PO
KT
PO
PM
Tdb
2
2
Figure 2. DTMF mode operating timing
Figure 1. Pulse mode operating timing
Tdb
Tsdo
Tidp
Td
Tkt
Tm
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
Titp
T
b
m
T
T
b
m
T
3
Tidp
3
Titp
Hi-impedance
EM91203 SERIES
Hi-impedance
10.1.1997
10