參數(shù)資料
型號： XRT91L31IQTR-F
廠商： Exar Corporation
文件頁數(shù)： 1/41頁
文件大?。?/td> 0K
描述： IC TXRX SONET/SDH 8BIT 64QFP
標準包裝： 1,000
類型： 收發(fā)器，多路復(fù)用器
PLL： 是
主要目的： 以太網(wǎng)，SONET/SDH
輸入： LVCMOS，LVPECL，LVTTL
輸出： LVCMOS，LVPECL，LVTTL
電路數(shù)： 1
差分 - 輸入:輸出： 是/是
頻率 - 最大： 622.08MHz
電源電壓： 3.135 V ~ 3.465 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-FQFP
供應(yīng)商設(shè)備封裝： 64-PQFP（10x10）
包裝： 帶卷 (TR)
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XRT91L31
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
JULY 2008
REV. 1.0.2
GENERAL DESCRIPTION
The XRT91L31 is a fully integrated SONET/SDH
transceiver for SONET/SDH 622.08 Mbps STS-12/
STM-4 or 155.52 Mbps STS-3/STM-1 applications.
The transceiver includes an on-chip Clock Multiplier
Unit (CMU), which uses a high frequency Phase-
Locked Loop (PLL) to generate the high-speed
transmit serial clock from a slower external clock
reference. It also provides Clock and Data Recovery
(CDR) function by synchronizing its on-chip Voltage
Controlled Oscillator (VCO) to the incoming serial
data stream. The internal CDR unit can be disabled
and bypassed in lieu of an externally recovered
received clock from the optical module. Either the
internally recovered clock or the externally recovered
clock can be used for loop timing applications. The
chip provides serial-to-parallel and parallel-to-serial
converters using an 8-bit wide LVTTL system
interface in both receive and transmit directions.
The transmit section includes an option to accept a
parallel clock signal from the framer/mapper to
synchronize the transmit section timing. The device
can internally monitor Loss of Signal (LOS) condition
and automatically mute received data upon LOS. An
on-chip SONET/SDH frame byte and boundary
detector and frame pulse generator offers the ability
recover SONET/SDH framing and to byte align the
receive serial data stream into the 8-bit parallel bus.
APPLICATIONS
SONET/SDH-based Transmission Systems
Add/Drop Multiplexers
Cross Connect Equipment
ATM and Multi-Service Switches, Routers and
Switch/Routers
DSLAMS
SONET/SDH Test Equipment
DWDM Termination Equipment
FIGURE 1. BLOCK DIAGRAM OF XRT91L31
Re
se
t
D
L
OOP
RL
O
P
S
LOOPTIM
E
LOSEXT
ST
S-
1
2
/S
T
S
-3
ALO
O
P
DL
O
S
D
IS
F
R
AM
E
P
U
L
SE
OOF
Clock Control
Control Block
C
DRD
IS
C
DRR
E
F
S
E
L
C
M
UF
RE
Q
S
E
L
STS-12/STM-4 or STS-3/STM-1
TRANSCEIVER
Loop Filters
CA
P
1
P
CA
P
2
P
CA
P
1
N
CA
P
2
N
RXDO[7:0]
RXPCLKO
CDR
RXIP/N
8
Div by 8
XRXCLKIP/N
SIPO
(Serial Input
Parallel Output)
MU
X
PISO
(Parallel Input
Serial Output)
DLOOP
ALOOP
RLOOPS
Re-Timer
CMU
TXOP/N
MU
X
XO
R
TTLREFCLK
REFCLKP/N
CDRAUXREFCLK
MU
X
TXPCLK_IO
PIO_C
T
R
L
Div by
8
ENB
TXDI[7:0]
8
MUX
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT91L32 制造商:EXAR 制造商全稱:EXAR 功能描述:STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L32ES 功能描述:LIN 收發(fā)器 SONET SDH 8 bit TRANCEIVER RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
XRT91L32IQ 功能描述:LIN 收發(fā)器 SONET SDH 8 bit TRANCEIVER RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
XRT91L32IQ-F 功能描述:總線收發(fā)器 8-Bit TTL 3.3V temp -45 to 85C;UART RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
XRT91L32IQTR 功能描述:LIN 收發(fā)器 PHY Transceiver RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
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