YTD428 YAMAHA [YAMAHA CORPORATION], YTD428 Datasheet - Page 12

• Manufacturer Part Number: YTD428
• Description: DSU LSI for the ISDN Terminal Equipment
• Manufacturer: YAMAHA [YAMAHA CORPORATION]

Note 1
Note 2
- 12 -
R
D
D
e
r
r
Driver, Receiver I/O Impedance
v i
v i
e c
r e
r e
v i
r e
O
O
When no pulse is output.
When pulse is output.
P
u
u
n I
a
u p
u p
a r
u p
I t
I t
m
I t
m
m
e
m
p
p
e t
d e
d e
p
s r
d e
n a
n a
n a
e c
e c
e c
S
y
Z
Z
Z
m
L
L
I L
O
O
b
1
0
l o
Figure 4 Transmit Block Test Circuit
HTD
L
L
LTD
O
O
1
1
C
L
-
-
o
1 I
L
L
n
YTD428
O
O
d
-
2
2
t i
L
o i
(
(
2 I
N
N
n
o
o
e t
e t
) 1
) 2
LO1
LO2
M
0 5
0 5
i
100
200
. n
R
O
R
L
T
5 1
y
. p
Transmit signal
M
a
. x
U
k
k
n
s t i