參數(shù)資料
型號(hào): YTD423D-S
元件分類: 數(shù)字傳輸電路
英文描述: DATACOM, ISDN CONTROLLER, PQFP100
封裝: SQFP-100
文件頁(yè)數(shù): 8/13頁(yè)
文件大小: 219K
代理商: YTD423D-S
2
BLOCK
DIA
GRAM
2.1
User
Net
w
ork
In
terface
Blo
c
k
Diagram
YTD423
is
the
most-suited
LSI
for
terminal
equipmen
tsuc
h
as
terminal
adapters
and
ISDN
telephones
and
for
PHS
base
stations.
YTD423
con
tains
la
y
er
1
and
la
y
er
2
functions
as
w
ell
as
the
HDLC
con
troller
and
DMA
con
troller
for
the
B
c
hannel.
Because
of
this,
terminal
equipmen
t
can
b
e
optimally
con gured
b
y
adding
few
circuits
suc
has
the
la
y
er
3
con
trol
pro
cessor
and
analog
driv
er/receiv
er.
The
blo
c
k
diagram
of
the
user
net
w
ork
in
terface
with
YTD423
is
sho
wn
in
Figure
1.
ISDN
Network
YTD423
User's premises
TE1
(ISDN terminal)
NT2
(PBX etc.)
NT1
(DSU)
TE2
(Non-ISDN terminal)
TA(Terminal Adapter)
TE1
TA with built-in DSU
TE1
TE2
T
S/T
R
U
RS
SU
S/T
YTD421
(Driver / Receiver)
YTD428
(DSU)
Figure
1:
User
Net
w
ork
In
terface
Blo
c
k
Diagram
4
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參數(shù)描述
YTD423-S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
YTD426BS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
YTD427 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN DSU Analog Front End
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