XRT83VSH314ES Exar, XRT83VSH314ES Datasheet - Page 12
XRT83VSH314ES
Manufacturer Part Number
XRT83VSH314ES
Description
Peripheral Drivers & Components - PCIs 14 CHT1/E1LIUSH LOW COST VERSION
Manufacturer
Exar
Datasheet
1.XRT83VSH314ES.pdf
(80 pages)
Specifications of XRT83VSH314ES
Product Category
Peripheral Drivers & Components - PCIs
Rohs
yes
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TRANSMITTER SECTION
XRT83VSH314
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
TPOS13
TPOS12
TPOS10
TCLK13
TCLK12
TCLK10
TPOS11
TCLK11
TPOS9
TPOS8
TPOS7
TPOS6
TPOS5
TPOS4
TPOS3
TPOS2
TPOS1
TPOS0
TCLK9
TCLK8
TCLK7
TCLK6
TCLK5
TCLK4
TCLK3
TCLK2
TCLK1
TCLK0
TxON
N
DMO
AME
AC20
AC18
AB17
AA18
AB18
AC6
AC5
AC7
D16
C17
D17
AB6
AA6
Y16
Y17
A19
B16
A18
B19
A17
P
D7
C4
D6
Y4
A3
B5
B6
B7
B4
Y8
IN
T
YPE
O
I
I
I
Transmit On/Off Input
Upon power up, the transmitters are powered off. Turning the transmitters On
or Off is selected through the microprocessor interface by programming the
appropriate channel register if this pin is pulled "High". If the TxON pin is
pulled "Low", all 14 transmitters are powered off.
N
Digital Monitor Output (Global Pin for All 14-Channels)
When no transmit output pulse is detected for more than 128 TCLK cycles on
one of the 14-channels, the DMO pin will go "High" for a minimum of one TCLK
cycle. DMO will remain "High" until the transmitter sends a valid pulse.
N
Transmit Clock Input
TCLK is the input facility clock used to sample the incoming TPOS/TNEG data.
If TCLK is absent, pulled "Low", or pulled "High", the transmitter outputs at
TTIP/TRING can be selected to send an all ones or an all zero signal by pro-
gramming TCLKCNL. In addition, software control (TCLKE) allows TPOS/
TNEG data to be sampled on either edge of TCLK.
N
TPOS/TDATA Input
Transmit digital input pin. In dual rail mode, this pin is the transmit positive
data input. In single rail mode, this pin is the transmit non-return to zero (NRZ)
data input.
N
OTES
OTE
OTES
OTE
1. TxON is ideal for redundancy applications. See the Redundancy
2. Internally pulled "Low" with a 50K
1. TCLKE is a global setting that applies to all 14 channels.
2. Internally pulled "Low" with a 50k
: This pin is for redundancy applications to initiate an automatic switch to
: Internally pulled "Low" with a 50KΩ resistor.
:
:
the backup card. For individual channel DMO, see the register map.
Applications Section of this datasheet for more details.
9
D
ESCRIPTION
Ω
Ω
resistor.
resistor.
REV. 1.0.1
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