EM91710 EMC [ELAN Microelectronics Corp], EM91710 Datasheet - Page 12

• Manufacturer Part Number: EM91710
• Description: TONE/PULSE SWITCHABLE DIALER
• Manufacturer: EMC [ELAN Microelectronics Corp]

* This specification are subject to be changed without notice.
XMUTE
XMUTE
KEY IN
TONE
OSCO
HKS
PO
*PULSE MODE:
*TONE MODE:
XMUTE
XMUTE
3
KEY IN
TONE
TONE
OSCO
OSCO
HKS
t
PO
PO
DB
t
IDP
Figure 6: Pulse Mode Redial Timing Diagram
3
t
Figure 7: Pause key operating timing
PDP
t
t DB
DB
t
2
ITP
t
IDP
2
t
IDP
t
ITP
t
P
IDP
3
T
P
T p
RD
TONE/PULSE SWITCHABLE DIALER
- - - - - - High impedance
t
IDP
- - - - - - High impedance
t
ITP
t
IDP
t
IDP
9.30.1997
EM91710A/B
12