参数资料
| 型号： | XRT91L33IG-F |
| 厂商： | Exar Corporation |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC MULTIRATE CDR 20TSSOP |
| 标准包装： | 10 |
| 类型： | 时钟和数据恢复（CDR），时钟/频率同步器，多路复用器 |
| PLL： | 是 |
| 主要目的： | 以太网，SONET/SDH |
| 输入： | LVDS，LVPECL |
| 输出： | LVDS，LVPECL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:2 |
| 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： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 散装 |
| 其它名称： | 1016-1362 |
XRT91L33
2
STS-12/STS-3 MULTIRATE CLOCK AND DATA RECOVERY UNIT
REV. V1.0.0
CLOCK AND DATA RECOVERY OVERVIEW
The clock and data recovery (CDR) unit accepts high speed NRZ serial data from the Differential receiver and
generates a clock with a frequency equal to that of the incoming data. The CDR block uses a reference clock to
train and monitor its clock recovery PLL. Upon startup, the PLL locks to the local reference clock. Once this is
achieved, the PLL attempts to lock onto the incoming receive serial data stream. Whenever the recovered
clock frequency deviates from the local reference clock frequency by more than approximately ±500 ppm, the
clock recovery PLL will switch and lock back onto the local reference clock and declare a Loss of Lock.
Whenever a Loss of Lock or a Loss of Signal event occurs, the CDR will continue to supply a recovered clock
(based on the local reference) to the framer/mapper device. An LOS condition occurs when either SIGD or
LCKTOREFN is low. In this case, the receive serial data output is forced to a logic zero state for the entire
duration of the LOS condition. This acts as a receive data mute upon LOS function to prevent random noise
from being misinterpreted as valid incoming data. When SIGD becomes active again, the recovered clock is
determined to be within ±500 ppm accuracy with respect to the local reference source and LOS is no longer
declared, the clock recovery PLL will switch and lock back onto the incoming receive serial data stream.
FIGURE 2. 20 PIN TSSOP OF XRT91L33 (TOP VIEW)
TABLE 1: ORDERING INFORMATION
PART NUMBER
PACKAGE
OPERATING TEMPERATURE RANGE
XRT91L33IG
20-pin TSSOP Package
-40°C to +85°C
XRT91L33IG-F
20-Pin TSSOP Lead-Free Package
-40°C to +85°C
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDDA
RXDIP
RXDIN
VSSA
LOCK
STS12_MODE
REFCK
LCKTOREFN
VSS
VDD
VDDA
VSSA
CAP+
CAP-
TEST
SIGD
RXDOP
RXDON
RXCLKOP
RXCLKON
相关PDF资料 |
PDF描述 |
|---|---|
| XRT91L34IV-F | IC MULTIRATE CDR QUAD 128LQFP |
| 07010 | CALIBRATION UNIT NIST STD WS&FG |
| 07200 | CHAIR COVER STATSHIELD |
| 07420 | BINDER 3RING DISSIPATIVE 3" |
| 07450 | SHEET PROT'R CLR 8.75X11.25 25PK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT91L33IGTR-F | 功能描述:时钟发生器及支持产品 Recovery Unit RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| XRT91L34 | 制造商:EXAR 制造商全称:EXAR 功能描述:QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR |
| XRT91L34ES | 功能描述:外围驱动器与原件 - PCI 4 CHOC12/STM4 OC3/STM1 CDR RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT91L34IV | 功能描述:计时器和支持产品 4CH OC12/STM4 OC3/STM1CDR RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| XRT91L34IVF | 制造商:Exar Corporation 功能描述:CDR 51.84Mbps/155.52Mbps/622.08Mbps SONET/SDH 128-Pin LQFP 制造商:EXAR 功能描述:CDR 51.84Mbps/155.52Mbps/622.08Mbps SONET/SDH 128-Pin LQFP |
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