參數(shù)資料
型號(hào): XRT83VSH316IB
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
中文描述: DATACOM, PCM TRANSCEIVER, PBGA316
封裝: 21 X 21 MM, STBGA-316
文件頁數(shù): 23/96頁
文件大?。?/td> 600K
代理商: XRT83VSH316IB
PRELIMINARY
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH316
21
REV. P1.0.3
The XRT83VSH316 has the ability to switch the internal termination to "High" impedance by programming
RxTSEL in the appropriate channel register. For internal termination, set RxTSEL to "1". By default, RxTSEL
is set to "0" ("High" impedance). For redundancy applications, a dedicated hardware pin (RxTSEL) is also
available to control the receive termination for all channels simultaneously. This hardware pin takes priority
over the register setting if RxTCNTL is set to "1" in the appropriate global register. If RxTCNTL is set to "0", the
state of this pin is ignored. See
Figure 4
for a typical connection diagram using the internal termination.
F
IGURE
4. T
YPICAL
C
ONNECTION
D
IAGRAM
U
SING
I
NTERNAL
T
ERMINATION
T
ABLE
3: R
ECEIVE
T
ERMINATIONS
RXTSEL
TERSEL1
TERSEL0
RXRES1
RXRES0
R
ext
R
int
M
ODE
0
x
x
x
x
R
ext
T1/E1/J1
1
0
0
0
0
100
T1
1
0
1
0
0
110
J1
1
1
0
0
0
75
E1
1
1
1
0
0
120
E1
1
0
0
0
1
240
172
T1
1
0
1
0
1
240
204
J1
1
1
0
0
1
240
108
E1
1
1
1
0
1
240
240
E1
1
0
0
1
0
210
192
T1
1
0
1
1
0
210
232
J1
1
1
0
1
0
210
116
E1
1
1
1
1
0
210
280
E1
1
0
0
1
1
150
300
T1
1
0
1
1
1
150
412
J1
1
1
0
1
1
150
150
E1
1
1
1
1
1
150
600
E1
R
TIP
R
RING
XRT83VSH316 LIU
1:1
Internal Impedance
Line Interface T1/E1/J1
One Bill of Materials
Receiver
Input
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