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參數資料
| 型號： | XRT91L80IB |
| 廠商： | EXAR CORP |
| 元件分類： | 數字傳輸電路 |
| 英文描述： | 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| 中文描述： | TRANSCEIVER, PBGA196 |
| 封裝： | 12 X 12 MM, STBGA-196 |
| 文件頁數： | 1/45頁 |
| 文件大小： | 359K |
| 代理商： | XRT91L80IB |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
xr
PRELIMINARY
2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L80
JULY 2005
GENERAL DESCRIPTION
REV. P1.1.0
The XRT91L80 is a fully integrated SONET/SDH
transceiver for SONET OC-48/STM-16 applications
supporting the use of Forward Error Correction (FEC)
capability. 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) functions by synchronizing its on-
chip Voltage Controlled Oscillator (VCO) to the
incoming serial data stream. The chip provides serial-
to-parallel and parallel-to-serial converters and 4-bit
LVDS system interfaces in both receive and transmit
directions. The transmit section includes a 4x9 Elastic
Buffer (FIFO) to absorb any phase differences
between the transmitter clock input and the internally
generated transmitter reference clock. In the event of
an overflow, an internal FIFO control circuit outputs
an OVERFLOW indication. The FIFO under the
control of the FIFO_AUTORST pin can automatically
recover from an overflow condition. The operation of
the device can be monitored by checking the status
of the LOCKDET_CMU, LOCKDET_CDR, and
LOSDET output signals. An on-chip phase/frequency
detector and charge-pump offers the ability to form a
de-jittering PLL with an external VCXO that can be
used in loop timing mode to clean up the recovered
clock in the receive section.
APPLICATIONS
SONET/SDH-based Transmission Systems
Add/Drop Multiplexers
Cross Connect Equipment
ATM and Multi-Service Switches and Routers
DSLAMS
SONET/SDH Test Equipment
DWDM Termination Equipment
F
IGURE
1. B
LOCK
D
IAGRAM
OF
XRT91L80
PISO
(Parallel Input
Serial Output)
PFD
& Charge Pump
TXDI0P/N
TXDI1P/N
TXDI2P/N
TXDI3P/N
S
S
Serial
Microprocessor
Hardware
Control
I
S
R
H
R
D
R
L
L
TXPCLKIP/N
DLOOP
RLOOPP
RXDO0P/N
RXDO1P/N
RXDO2P/N
RXDO3P/N
4
WP
RP
RLOOPS
CDR
Re-Timer
CMU
TXOP/N
RXIP/N
R
V
A
V
V
V
C
L
TXPCLKOP/N
TXCLKO16P/N
TXCLKO16DIS
L
O
FIFO_RST
FIFO_AUTORST
LOSDMUTE
L
L
S
P
DISRD
STS-48 TRANSCEIVER
C
T
JTAG
TDO
TDI
TCK
TMS
TRST
Div by 4
Div by 16
RXPCLKOP/N
RXCLKO16P/N
Div by 4
Div by 16
SIPO
(Serial Input
Parallel Output)
相關PDF資料 |
PDF描述 |
|---|---|
| XRT91L81 | 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L81IB | 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L82 | 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L82IB | 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT94L31_07 | 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT91L80IB-F | 功能描述:總線收發器 Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量: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 |
| XRT91L81 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L81IB | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L82 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L82ES | 功能描述:總線收發器 Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量: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 |
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