MT8971B/72B
Pin Description (continued)
Pin #
DIP PLCC
17
18
22
23
Name
OSC1
Precan
Description
Oscillator Input.
CMOS Input. D.C. couple signals to this pin. Refer to D.C. Electrical
Characteristics for OSC1 input requirements.
Precanceller Disable.
When held to Logic ’1’
,
the internal path from L
OUT
to the
precanceller is forced to V
Bias
thus bypassing the precanceller section. When logic ’0’, the
L
OUT
to the precanceller path is enabled and functions normally. An internal pulldown (50
kΩ) is provided on this pin.
No Connection.
Leave open circuit.
1,6,
11,
18,
20,
25
19
20
21
22
24
26
27
28
NC
L
OUT
DIS
L
OUT
Disable.
When held to logic “1”, L
OUT
is disabled (i.e., output = V
Bias
). When logic
“0”, L
OUT
functions normally. An internal pulldown (50 kΩ) is provided on this pin.
TEST
L
IN
V
DD
Test Pin.
Connect to V
SS
for normal operation.
Receive Signal
input (Analog).
Positive Power Supply
(+5V) input.
F0
C4
DSTi
AA A
AAAAA
AAAAA
AA
AAAAA
AA
AAAAA
B1
7
AA
AAAAA
AA
AAAAA
AA
AAAAA
AAAA
A AA
AAAAA
A AA
AAAAA
A AA
AAAAA
A AA
AAAAA
B1
7
A AA
AAAAA
A AA
AAAAA
A AA
AAAAA
B1
6
B1
5
B1
4
B1
3
B1
2
B1
1
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAA
AAAA
AAAA
B1
0
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAA
B1
7
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
AAAA
AAAA
B1
0
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
B1
7
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA
AAAA
DSTo
B1
6
B1
5
B1
4
B1
3
B1
2
B1
1
F0o
Channel Time 0
Figure 3 - DV Port - 80 kbit/s (Modes 2, 3, 6)
F0
C4
DSTi
A A
AAAAA
AAAAA
A
AAAAA
A
AAAA
B1
7
B1
6
B1
5
B1
4
A A
AAAAA
A
AAAAA
A
AAAAA
AAAA
A A
AAAAA
AAAAA
A
AAAAA
A
AAAA
B1 B1 B1 B1
A A
AAAAA
7
6
5
4
A
AAAAA
A
AAAAA
A
AAAA
AAAAAAAA AAA
AAAA
AAAAAAAAA AAAA
AAAA
AAAAAAAA AAA
AAAA
AAAAAAAAA AAAA
AAAA
AAAAAAA
AAAA
B1
3
B1
2
B1
1
B1
0
AAAAAAAA AAA
B2
7
B2
6
B2
5
B2
4
B2
3
B2
2
B2
1
B2
0
AAAAAAAAA AAAA
B1
7
AAAAAAAA AAA
AAAA
AAAAAAAAA AAAA
AAAA
AAAAAAAA AAA
AAAA
AAAAAAAAA AAAA
AAAA
AAAAAAAA
AAAA
AAAAAAAAA AAAA
AAAA
AAAAAAAA AAA
AAAA
AAAAAAAAA AAAAA
AAAA
AAAAAAAA AAA
AAAA
AAAA
AAAAAAAA AAA
B2 B2 B2 B2 B2 B2 B2 B2
AAAAAAAAA AAAAA
AAAAAAA
AAAAAAAAA AAAAA
AAAA
B1
B1
3
B1
2
B1
1
B1
0
AAAAAAAA
AAAAAAA
AAAA
7
6
5
4
3
2
1
0
AAAAAAAAA AAAAA
7
AAAAAAAA AAA
AAAA
AAAAAAAAA AAAAA
AAAA
AAAAAAAA
AAAA
AAAAAAAAA AAAAA
AAAAAAAAA
AAAAAAAA
AAAA
DSTo
F0o
Channel Time 0
Channel Time 16
Figure 4 - DV Port - 160 kbit/s (Modes 2, 3, 6)
9-109
MITEL [ MITEL NETWORKS CORPORATION ]
