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參數(shù)資料
| 型號： | XRT91L31IQ-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 25/41頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX SONET/SDH 8BIT 64QFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 收發(fā)器，多路復(fù)用器 |
| PLL： | 是 |
| 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 |
| 其它名稱： | 1016-1361 |
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XRT91L31
31
REV. 1.0.2
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
4.0
DIAGNOSTIC FEATURES
4.1
Serial Remote Loopback
The serial remote loopback function is activated by setting RLOOPS "High". When serial remote loopback is
activated, the high-speed serial receive data from RXIP/N is presented at the high speed transmit output
TXOP/N, and the high-speed recovered clock is selected and presented to the high-speed transmit clock input
of the Retimer. During serial remote loopback, the high-speed receive data (RXIP/N) is also converted to
parallel data and presented at the low-speed receive parallel interface RXDO[7:0]. The recovered receive clock
is also divided by 8 and presented at the low-speed clock output RXPCLKO to synchronize the transfer of the
8-bit received parallel data. A simplified block diagram of serial remote loopback is shown in Figure 18.
4.2
Digital Local Loopback
The digital local loopback is activated when the DLOOP signal is set "High." When digital local loopback is
activated, the high-speed data from the output of the parallel to serial converter is looped back and presented
to the high-speed input of the receiver serial to parallel converter. The CMU output is also looped back to the
receive section and is used to synchronize the transfer of the data through the receiver. In Digital loopback
mode, the transmit data from the transmit parallel interface TXDI[7:0] is serialized and presented to the high-
speed transmit output TXOP/N using the high-speed 622.08/155.52 MHz transmit clock generated from the
clock multiplier unit and presented to the input of the Retimer and SIPO. A simplified block diagram of digital
loopback is shown in Figure 19.
FIGURE 18. SERIAL REMOTE LOOPBACK
FIGURE 19. DIGITAL LOCAL LOOPBACK
PISO
Re-Timer
LVPECL
Output Drivers
LVPECL
Input Drivers
CDR
SIPO
Rx Parallel Output
Tx Serial Output
Serial Remote Loopback
Rx Serial Input
PISO
Re-Timer
LVPECL
Output Drivers
LVPECL
Input Drivers
CDR
SIPO
Rx Parallel Output
Tx Serial Output
Digital Loopback
Tx Parallel Input
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT91L31IQ-F | 制造商:Exar Corporation 功能描述:SONET Transceiver IC |
| XRT91L31IQTR | 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 |
| 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 |
| XRT91L32ES | 功能描述:LIN 收發(fā)器 SONET SDH 8 bit TRANCEIVER RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
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