參數(shù)資料
型號: XRT91L32IQTR-F
廠商: Exar Corporation
文件頁數(shù): 20/37頁
文件大?。?/td> 0K
描述: IC TXRX SONET/SDH 8BIT 100QFP
標(biāo)準(zhǔn)包裝: 1,000
類型: 收發(fā)器
規(guī)程: SONET/SDH
電源電壓: 3.3V
安裝類型: 表面貼裝
封裝/外殼: 100-BQFP
供應(yīng)商設(shè)備封裝: 100-QFP(14x20)
包裝: 帶卷 (TR)
xr
XRT91L32
REV. 1.0.3
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
25
3.6
Transmit Serial Output Control
The 622.08 Mbps STS-12/STM-4 or 155.52 Mbps STS-3/STM-1 transmit serial output is avaliable on TXOP/N
pins. The transmit serial output can be AC or DC coupled to an optical module or electrical interface. A
simplified block diagram with internally AC-coupled SFP is shown in Figure 15. Also, refer to application note
TAN-9132.)
NOTE: Some optical modules integrate AC coupling capacitors within the module. AC or DC coupling is largely specific to
system design and optical module of choice.
FIGURE 14. LOOP TIMING MODE USING INTERNAL CDR OR AN EXTERNAL RECOVERED CLOCK
FIGURE 15. TRANSMIT SERIAL OUTPUT INTERFACE BLOCK
RXIP
RXIN
MU
X
CDR
MUX
MU
X
REFCLKP
REFCLKN
TTLREFCLK
CDRDIS
Div by 8
Clk
Data
~
XRT91L32
LOOPTIME
XRXCLKIP
XRXCLKIN
DATA
PISO
to Retimer
SIPO
Retimer
TXOP
TXON
CLK
8
RXDO[7:0]
RXPCLKO
DATA
CLK
TXPCLK_IO
VDD
ENB
MU
X
0
1
Div by
8
TXDI[7:0]
622.08/
155.52MHz
CMU
SFP, Optical Module
TXOP
TXON
Optical Fiber
187 Ohm
Install close to 91L30
Internally AC coupled and
terminated into 100 Ohm
XRT91L32
STS-12/STM-4
or
STS-3/STM-1
Transceiver
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