參數(shù)資料
型號: XRT91L31IQ
廠商: Exar Corporation
文件頁數(shù): 30/41頁
文件大?。?/td> 0K
描述: IC TXRX SONET/SDH 8BIT 64QFP
標(biāo)準(zhǔn)包裝: 160
類型: 收發(fā)器,多路復(fù)用器
PLL:
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: 托盤
XRT91L31
36
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
REV. 1.0.2
The jitter transfer function is a ratio between the jitter output and jitter input for a component, or system often
expressed in dB. A negative dB jitter transfer indicates the element removed jitter. A positive dB jitter transfer
indicates the element added jitter. A zero dB jitter transfer indicates the element had no effect on jitter.
The jitter attenuator within the XRT91L31 meets the latest jitter attenuation specifications and/or jitter transfer
characteristics as shown in the Figure 26 and Figure 27.
FIGURE 26. JITTER TRANSFER FOR OC-12
FIGURE 27. JITTER TRANSFER FOR OC-3
4.6.3
Jitter Generation
Jitter generation is defined as the amount of jitter at the STS-N output in the absence of applied input jitter. The
bandwidth is set according to the data rate. The Bellcore and ITU requirement for this type jitter is 0.01UI rms
measured with a specific band-pass filter.
For more information on these specifications refer to Bellcore TR-NWT-000253 sections 5.6.2-5 and GR-253-
CORE section 5.6 and ITUT G.783 section 9.3.1.1. Table 19 below shows the jitter generation limits per
BellCore GR-253 and ITUT G.783 versus XRT91L31 typical jitter performance.
Jitter Transfer, OC12 (Low Bandwidth)
-25
-20
-15
-10
-5
0
5
100
1000
10000
100000
1000000
10000000
Frequency (Hz)
Amplitude
in
(dB)
Mask
Jitter Transfer
Jitter Transfer, OC-3 (Low Bandwidth)
-25
-20
-15
-10
-5
0
5
100
1000
10000
100000
1000000
10000000
Frequency (Hz)
Amplitude
in
(dB)
Mask
Jitter Transfer
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XRT91L31IQ-F 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 8-Bit TTL 3.3V temp -45 to 85C;UART RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT91L31IQ-F 制造商:Exar Corporation 功能描述:SONET Transceiver IC
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XRT91L31IQTR-F 功能描述:總線收發(fā)器 SONET/SDH, FULL DPLX 3.3V I/O, LOS, CMU 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(shí)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
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