XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 10

• Manufacturer Part Number: XRT75R12DIB-F
• Description: Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
• Manufacturer: Exar Corporation

Specifications of XRT75R12DIB-F

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V to 5 V
• Package / Case: TBGA-420
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SYSTEM-SIDE RECEIVE OUTPUT AND RECEIVE CONTROL PINS
XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
AD25
AA24
AB26
AD26
P
W25
G23
AA3
AD2
G22
AB1
G24
AD1
D25
U24
K22
U22
E25
Y24
T22
J24
L24
L22
W2
G4
G5
G3
U3
D2
K5
U5
T5
Y3
E2
J3
L3
L5
IN
#
S
RxPOS10
RxPOS11
IGNAL
RLOS10
RxPOS0
RxPOS1
RxPOS2
RxPOS3
RxPOS4
RxPOS5
RxPOS6
RxPOS7
RxPOS8
RxPOS9
RLOS11
RLOL10
RLOL11
RLOS0
RLOS1
RLOS2
RLOS3
RLOS4
RLOS5
RLOS6
RLOS7
RLOS8
RLOS9
RLOL0
RLOL1
RLOL2
RLOL3
RLOL4
RLOL5
RLOL6
RLOL7
RLOL8
RLOL9
N
AME
T
YPE
O
O
O
Receive Loss of Signal Output Indicator
This output pin indicates Loss of Signal (LOS) Defect condition for the corre-
sponding channel.
"Low" - Indicates that the corresponding Channel is NOT currently declaring the
LOS defect condition.
"High" - Indicates that the corresponding Channel is currently declaring the LOS
defect condition.
Receive Loss of Lock Output Indicator
This output pin indicates Loss of Lock (LOL) condition for the corresponding
channel.
"Low" - Indicates that the corresponding Channel is NOT declaring the LOL
condition.
"High" - Indicates that the corresponding Channel is currently declaring the LOL
condition.
N
Receive Positive Data Output
The function of these output pins depends upon whether the channel has been
configured to operate in the Single-Rail or Dual-Rail Mode.
Dual-Rail Mode - Receive Positive Polarity Data Output
If the channel has been configured to operate in the Dual-Rail Mode, then all
positive-polarity data will be output via this pin. The negative-polarity data will
be output via the corresponding RxNEG_n pin. In other words, the Receive
Section of the corresponding Channel will pulse this output pin "High" for one
period of RCLK_n anytime it receives a positive-polarity pulse via the RTIP/
RRING input pins.
The data output via this pin is updated upon the active edge of RxCLK_n output
clock signal.
Single-Rail Mode - Receive Data Output
In the Single-Rail Mode, all Receive (or Recovered) data will be output via this
pin.
The data output via this pin is updated upon the active edge of RxCLK_n output
clock signal.
OTE
: The Receive Section of a given channel will declare the LOL condition
anytime the frequency of the Recovered Clock (RCLK) signal differs
from that of the reference clock programmed for that channel by 0.5%
or more.
6
D
ESCRIPTION
REV. 1.0.3