参数资料
| 型号： | XRT91L31IQ-F |
| 厂商： | Exar Corporation |
| 文件页数： | 25/41页 |
| 文件大小： | 0K |
| 描述： | IC TXRX SONET/SDH 8BIT 64QFP |
| 标准包装： | 1 |
| 类型： | 收发器，多路复用器 |
| PLL： | 是 |
| 主要目的： | 以太网，SONET/SDH |
| 输入： | LVCMOS，LVPECL，LVTTL |
| 输出： | LVCMOS，LVPECL，LVTTL |
| 电路数： | 1 |
| 差分 - 输入:输出： | 是/是 |
| 频率 - 最大： | 622.08MHz |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-FQFP |
| 供应商设备封装： | 64-PQFP（10x10） |
| 包装： | 托盘 |
| 其它名称： | 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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|---|---|
| XRT91L31IQ-F | 制造商:Exar Corporation 功能描述:SONET Transceiver IC |
| XRT91L31IQTR | 功能描述:总线收发器 SONET/SDH, FULL DPLX 3.3V I/O, LOS, CMU RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| XRT91L31IQTR-F | 功能描述:总线收发器 SONET/SDH, FULL DPLX 3.3V I/O, LOS, CMU RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| XRT91L32 | 制造商:EXAR 制造商全称:EXAR 功能描述:STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER |
| XRT91L32ES | 功能描述:LIN 收发器 SONET SDH 8 bit TRANCEIVER RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
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