Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
5. ONE KEY REDIAL OPERATION
High impedance
HKS
D1
D2
R
KEY IN
TD
TITP
TD
TITP
TD
TITP
B
M
B
M
B
M
XMUTE
PO
T
M
ITP
TRP
(1 secs)
TBRK(2 secs)
DTMF
KT
TK
T
X2
20ms
6. CLOCK & DOUT OPERATION
High impedance
HKS
KEY IN
XMUTE
PO
D1
T
B
D
T
P
PD
TB
TM
TKT (34ms)
1.2kHz Carrier
KT
CLOCK
FCLOCK=2.4kH
z
DOUT
Data
X2
20ms
Note: D1=D3=3, D2=2.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
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