XRT91L34IV-F View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT91L34IV-F' PDF : 38 Pages View PDF
REV. 1.0.1
RECEIVER SECTION
XRT91L34
QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
NAME
RXDI0P
RXDI0N
RXDI1P
RXDI1N
RXDI2P
RXDI2N
RXDI3P
RXDI3N
RXDO0P
RXDO0N
RXDO1P
RXDO1N
RXDO2P
RXDO2N
RXDO3P
RXDO3N
RXCLKO0P
RXCLKO0N
RXCLKO1P
RXCLKO1N
RXCLKO2P
RXCLKO2N
RXCLKO3P
RXCLKO3N
LOL0
LOL1
LOL2
LOL3
LEVEL
LVDS,
Diff LVPECL
TYPE
I
LVDS,
O
Diff LVPECL
LVDS,
O
Diff LVPECL
LVCMOS
O
CAP0P
CAP0N
CAP1P
CAP1N
CAP2P
CAP2N
CAP3P
CAP3N
Analog
-
Analog
-
Analog
-
Analog
-
PIN
DESCRIPTION
3
Receive Serial Data Input
4
The differential receive serial data stream of 622.08 Mbps
11
STS-12/STM-1 or 155.52 Mbps STS-3/STM-1 or 51.84 Mbps
12
STS-1/STM-0 is applied to these differential input pins. These
pins accept LVDS or Differential LVPECL input standard.
22
21
These pins are internally biased to 1.2V via 15kΩ resistance
and are equipped with a 100Ω line-to-line internal termination.
30
29
94 Recovered Serial Data Output
93 622.08 Mbps STS-12/STM-4 / 155.52 Mbps STS-3/STM-1 /
86 51.84 Mbps STS-1/STM-0 differential recovered serial data out-
85
put that is updated simultaneously on the falling edge of the
75
corresponding channel RXCLKO output. User selectable LVDS
standard or Differential LVPECL standard output based on
76
OUTCFG pin state.
67
68
90 Recovered Clock Output
89 (622.08 MHz/ 155.52 MHz/ 51.84 MHz)
82 622.08 MHz STS-12/STM-4 / 155.52 MHz STS-3/STM-1 /
81 51.84 MHz STS-1/STM-0 differential clock output for the corre-
79
sponding recovered data output RXDO[0:3]P/N. The recovered
serial data output port will be updated on the falling edge of
80
this clock. User selectable LVDS standard or Differential
71
LVPECL standard output based on OUTCFG pin state.
72
98 CDR LOL Detect Output
99 This pin is used to monitor the lock condition of the PLL in the
63 clock and data recovery unit of each channel.
64 "Low" = CDR Locked
"High" = CDR Out of Lock
109 CDR Non-polarized External Loop Filter Capacitors
108 Mode of Operation:
103 1. STS12/STM4: CAP[0:3]P/N = 0.47µF ± 10% tolerance
102 2. STS3/STM1: CAP[0:3]P/N = 0.47µF ± 10% tolerance
3. STS1/STM0: CAP[0:3]P/N = 1.0µF ± 10% tolerance
59 Use type X7R or X5R for improved stability over temperature.
60 (Isolate from noise and place close to pin)
53
54
9
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