參數(shù)資料
型號： XRT83SL38IB
廠商： Exar Corporation
文件頁數(shù)： 35/88頁
文件大?。?/td> 0K
描述： IC LIU SH T1/E1/J1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝： 84
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 8/8
規(guī)程： T1，E1，J1
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 225-BGA
供應(yīng)商設(shè)備封裝： 225-BGA（19x19）
包裝： 托盤
XRT83SL38
38
OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.2
N+1 redundancy has one backup card for N primary cards. Due to impedance mismatch and signal contention,
external relays are necessary when using this redundancy scheme. The advantage of relays is that they create
complete isolation between the primary cards and the backup card. This allows all transmitters and receivers
on the primary cards to be configured in internal impedance mode, providing one bill of materials for all
interface modes of operation. The transmit and receive sections of the XRT83SL38 are described separately.
TRANSMIT
For N+1 redundancy, the transmitters on all cards should be programmed for internal impedance mode
providing one bill of materials for T1/E1/J1. The transmitters on the backup card do not have to be tri-stated. To
swap the primary card, close the desired relays, and tri-state the transmitters on the failed primary card. A
0.68
μF capacitor is used in series with TTIP for blocking DC bias. See Figure 15 for a simplified block diagram
of the transmit section for an N+1 redundancy scheme.
NOTE: For simplification, the over voltage protection circuitry was omitted.
FIGURE 15. SIMPLIFIED BLOCK DIAGRAM - TRANSMIT SECTION FOR N+1 REDUNDANCY
Backplane Interface
Primary Card
XRT83SL38
Tx
Line Interface Card
0.68
μF
T1/E1 Line
Prim ary Card
XRT83SL38
Tx
Prim ary Card
XRT83SL38
Tx
Backup Card
XRT83SL38
Tx
T1/E1 Line
TxTSEL=1, Internal
T xT SEL=1, Internal
1:2 or 1:2.45
0.68
μF
0.68
μF
0.68
μ F
1:2 or 1:2.45
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83SL38IB-F 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
XRT83SL38IV 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83VL38 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83VL38ES 功能描述:界面開發(fā)工具 Eval System for XRT83L38 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XRT83VL38IB 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
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