參數(shù)資料
型號: XRT83VSH38IB
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
中文描述: DATACOM, PCM TRANSCEIVER, PBGA225
封裝: 19 X 19 MM, 1 MM PITCH, PLASTIC, BGA-225
文件頁數(shù): 17/76頁
文件大?。?/td> 722K
代理商: XRT83VSH38IB
XRT83VSH38
14
REV. 1.0.7
8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
TERSEL1
TERSEL0
T11
R11
I
Termination Impedance Select
Hardware Mode Only
The TERSEL[1:0] pins are used to select the transmitter and receiver impedance.
By default, the impedance is set to 100
.
"00" = 100
"01" = 110
"10" = 75
"11" = 120
N
OTE
:
These pins are internally pulled "Low" with a 50k
resistor.
TEST
U12
I
Factory Test Mode
For normal operation, the TEST pin should be tied to ground.
N
OTE
:
Internally pulled "Low" with a 50k
resistor.
ICT
V12
I
In Circuit Testing
When this pin is tied "Low", all output pins are forced to "High" impedance for in cir-
cuit testing.
N
OTE
:
Internally pulled "High" with a 50K
resistor.
S
IGNAL
N
AME
BGA
L
EAD
#
T
YPE
D
ESCRIPTION
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