MT8841 Mitel, MT8841 Datasheet - Page 9

• Manufacturer Part Number: MT8841
• Description: CMOS Calling Number Identification Circuit
• Manufacturer: Mitel

TIP/RING
PWDN
OSC2
CD *
DATA
DCLK
DR *
* with external pull-up resistor
TIP/RING
DATA
DCLK
DR *
* with external pull-up resistor
t
IDD
b7
High (Input Idle)
stop
First Ringing
b7
1
start
stop
2 sec
0
b0 b1 b2 b3 b4 b5 b6 b7
start
Figure 9 - Input and Output Timing (Bellcore CND Service)
b0 b1 b2 b3 b4 b5 b6 b7
t
PU
channel seizure
Figure 10 - Serial Data Interface Timing
500ms
(min)
t
IAL
stop
Mark state
1
start
0
stop
t
CRD
b0 b1 b2 b3 b4 b5 b6 b7
start
Input FSK
Data
b0 b1 b2 b3 b4 b5 b6 b7
checksum
200ms
(min)
stop
t
IAH
1
start
High (Input Idle)
stop
0
t
b0 b1 b2
PD
start
MT8841
Ringing
Second
b0 b1 b2
5-19