參數(shù)資料
型號: XRT91L80IB-F
廠商: Exar Corporation
文件頁數(shù): 25/46頁
文件大?。?/td> 0K
描述: IC TXRX SONET/SDH 4BIT 196STBGA
產(chǎn)品變化通告: XRT91L80IB Obsolescence 6/Sept/2010
標準包裝: 126
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: 196-LFBGA
供應商設備封裝: 196-STBGA(12x12)
包裝: 托盤
xr
XRT91L80
REV. 1.0.0
2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
23
3.8
External Loop Filter
As shown in Figure 13, there is an internal charge pump used to drive an external loop filter and external
VCXO. The charge pump current is fixed at 250uA. Figure 14 is a simplified block diagram of the external loop
filter and recommended values.
FIGURE 14. SIMPLIFIED DIAGRAM OF THE EXTERNAL LOOP FILTER
3.9
Transmit Serial Output Control
The 2.488/2.666 Gbps 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 AC coupling block diagram is shown in
Figure 15.
NOTE: Some optical modules integrate AC coupled capacitors within the module. If so, the external AC coupled capacitors
are not necessary and can be excluded.
FIGURE 15. TRANSMIT SERIAL OUTPUT INTERFACE BLOCK
300pF
1uF
CPOUT
VCXO
4.02k
XRT91L80
STS-48/
STM-16
Transceiver
Optical Module
0.1
F
0.1
F
TXOP
TXON
Optical Fiber
相關PDF資料
PDF描述
ZSD100N8TA IC DRIVER SIREN 8-SOIC
ZXCD1210JB16TA IC AMP AUDIO CLASS D 16QFN
ZXFV203N14TC IC AMP VIDEO CFA 3CHAN 14SOIC
020189 FAN 115VAC 254X89MM CLE2T2
020191 FAN 230VAC 254X89MM CLE3T2
相關代理商/技術參數(shù)
參數(shù)描述
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(fā)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(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
XRT91L82IB 功能描述:總線收發(fā)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(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