MT8971B/72B
引脚说明(续)
针#
DIP PLCC
17
18
22
23
名字
OSC1
Precan
描述
振荡器输入。
CMOS输入。直流耦合信号到该引脚。是指直流电气
特性OSC1输入的要求。
Precanceller禁用。
当持有至逻辑“1”
,
从L-内部路径
OUT
对
precanceller被强制到V
BIAS
从而绕过precanceller部。当逻辑“0” ,则
L
OUT
到precanceller路径被启用并正常运行。内部下拉( 50
千欧)设在该引脚。
无连接。
离开开路。
1,6,
11,
18,
20,
25
19
20
21
22
24
26
27
28
NC
L
OUT
DIS
L
OUT
禁用。
当举行逻辑“1” ,L
OUT
被禁用(即输出= V
BIAS
) 。当逻辑
“0”, L
OUT
功能正常。内部下拉( 50千欧)设在该引脚。
TEST
L
IN
V
DD
TEST引脚。
连接到V
SS
以进行正常操作。
接收信号
输入(模拟) 。
正电源。
( + 5V )输入。
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
通道时间0
图3 - 的DV端口 - 80 kbit / s的(模式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
通道时间0
频道时间16
图4 - 的DV端口 - 160千比特/秒(模式2,3, 6)
9-109