XRT75R12IB-F Exar Corporation, XRT75R12IB-F Datasheet - Page 7

• Manufacturer Part Number: XRT75R12IB-F
• Description: Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
• Manufacturer: Exar Corporation

Specifications of XRT75R12IB-F

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Package / Case: TBGA-420
• Ic Interface Type: Parallel, Serial
• Supply Voltage Range: 3.135V To 3.465V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: BGA
• No. Of Pins: 420
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Data Rate Max: 51.84Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.4
SYSTEM-SIDE TRANSMIT INPUT AND TRANSMIT CONTROL PINS
AD20
AD16
AD24
AB25
AE24
AD11
AE20
AE16
AE11
P
W23
AD7
AD3
C25
H23
H24
AB2
C20
C16
C24
AE7
AE3
Y26
B24
C11
B20
B16
B11
W4
H3
H4
C2
C7
C3
Y1
B7
B3
IN
#
S
TxNEG10
TxNEG11
IGNAL
TxNEG0
TxNEG1
TxNEG2
TxNEG3
TxNEG4
TxNEG5
TxNEG6
TxNEG7
TxNEG8
TxNEG9
TRing10
TRing11
TRing0
TRing1
TRing2
TRing3
TRing4
TRing5
TRing6
TRing7
TRing8
TRing9
TTip10
TTip11
TTip0
TTip1
TTip2
TTip3
TTip4
TTip5
TTip6
TTip7
TTip8
TTip9
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
N
AME
T
YPE
O
O
I
Transmit Negative Data Input
When a Channel has been configured to operate in the Dual-Rail Mode,
the user should apply a pulse to this input pin anytime the Transmit Section
of the LIU IC to generate a negative-polarity pulse onto the line. This signal
will be latched into the Transmit Section circuitry upon the active edge of
the TxCLK_n signal.
N
Transmit TTIP Output - Positive Polarity Signal
These output pins along with the corresponding TRING_n output pins,
function as the Transmit DS3/E3/STS-1 Line output signal drivers for a
given channel of the XRT75R12.
Connect this signal and the corresponding TRING_n output signal to a 1:1
transformer.
Whenever the Transmit Section of the Channel generates and transmits a
positive-polarity pulse onto the line, this output pin will be pulsed to a high
ervoltage than its corresponding TRING_n output pins.
Conversely, whenever the Transmit Section of the Channel generates and
transmit a negative-polarity pulse onto the line, this output pin will be
pulsed to a lower voltage than its corresponding TRING_n output pin.
N
Transmit Ring Output - Negative Polarity Signal
These output pins along with the corresponding TTIP_n output pins, func-
tion as the Transmit DS3/E3/STS-1 Line output signal drivers for a given
channel, within the XRT75R12.
Connect this signal and the corresponding TTIP_n output signal to a 1:1
transformer.
Whenever the Transmit Section of the Channel generates and transmits a
positive-polarity pulse onto the line, this output pin will be pulsed to a lower
voltage than its corresponding TTIP_n output pin.
Conversely, whenever the Transmit Section of the Channel generates and
transmit a negative-polarity pulse onto the line, this output pin will be
pulsed to a higher voltage than its corresponding TTIP_n output pin.
N
OTE
OTE
OTE
: In the Single-Rail Mode, this input pin has no function, and should
: This output pin will be tri-stated whenever the TxON input pin or bit-
: This output pin will be tri-stated whenever the TxON input pin or bit-
be tied to GND.
field is set to "0".
field is set to "0".
4
D
ESCRIPTION
XRT75R12