XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 21

• Manufacturer Part Number: XRT94L43IB-F
• Description: IC MAPPER SONET/SDH OC12 516BGA
• Manufacturer: Exar Corporation

Specifications of XRT94L43IB-F

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 2.5V, 3.3V
• Package / Case: 516-BBGA
• Mounting Type: Surface Mount
• Product: Mapper
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XRT94L43
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
SONET/SDH SERIAL LINE INTERFACE PINS
P
N1
N2
P1
T4
IN
#
TXL_CLKI_N
TXL_DATA_P
TXL_DATA_N
TXL_DATA_R_P
S
IGNAL
N
AME
I/O
O
O
O
I
LVPECL
LVPECL
LVPECL
LVPECL
S
T
IGNAL
YPE
Transmit Reference Clock - Negative Polarity PECL Input:
This input pin, along with TxL_CLKI_P can be configured to func-
tion as the timing source for the STS-12/STM-4 Transmit Interface
Block.
If these two input pins are configured to function as the timing
source, then a 622.08MHz clock signal must be applied to these
input pins in the form of a PECL signal. These two inputs can be
configured to function as the timing source by writing the appropri-
ate data into the Interface Control Register - Byte 2 (Indirect
Address = 0x00, 0x31), (Direct Address = 0x0131).
Transmit STS-12/STM-4 Data - Positive Polarity PECL Output:
This output pin, along with TXL_DATA_N functions as the Transmit
Data Output, to the System back-plane (for transmission to some
other System Board) or an Optical Transceiver (for transmission to
remote terminal equipment).
For High-Speed Back-Plane Applications, it should noted that data
is output from these output pins upon the rising/falling edge of
TXL_CLKO_P/TXL_CLKO_N).
N
Transmit STS-12/STM-4 Data - Negative Polarity PECL Output:
This output pin, along with TXL_DATA_P functions as the Transmit
Data Output, to the System back-plane (for transmission to some
other System Board) or an Optical Transceiver (for transmission to
remote terminal equipment).
For High-Speed Back-Plane Applications, it should noted that data
is output from these output pins upon the rising/falling edge of
TXL_CLKO_P/TXL_CLKO_N).
N
Transmit STS-12/STM-4 Data - Positive Polarity PECL Output -
Redundant Port:
This output pin, along with TXL_DATA_R_N functions as the
Transmit Data Output, to the System back-plane (for transmission
to some other System Board) or an Optical Transceiver (for trans-
mission to remote terminal equipment).
For High-Speed Back-Plane Applications, it should noted that data
is output from these output pins upon the rising/falling edge of
TXL_CLKO_R_P/TXL_CLKO_R_N).
N
OTE
OTE
OTE
: For APS (Automatic Protection Switching) purposes, this
: For APS (Automatic Protection Switching) purposes, this
: For APS (Automatic Protection Switching) purposes, this
15
output pin, along with TXL_DATA_N functions as the
Primary Transmit Data Output Port.
output pin, along with TXL_DATA_P functions as the
Primary Transmit Data Output Port.
output pin, along with TXL_DATA_N functions as the
Redundant Transmit Data Output Port.
D
ESCRIPTION
REV. 1.0.2