参数资料
型号: XRT8001IP-F
厂商: Exar Corporation
文件页数: 13/48页
文件大小: 0K
描述: IC WAN CLOCK E1/E1 DUAL 18PDIP
产品变化通告: XRT obsolescence 05/Mar/2012
标准包装: 41
类型: 时钟/频率发生器
PLL:
主要目的: 以太网(WAN),T1/E1
输入: 时钟
输出: 时钟
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 无/无
频率 - 最大: 16.384kHz
电源电压: 3.3 V ~ 5 V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 18-DIP(0.300",7.62mm)
供应商设备封装: 18-PDIP
包装: 管件
XRT8001
20
Rev. 1.01
LDETDIS[2:1]
Signal output via the LOCKDET Signal
00
The LOCK Condition of PLL1 AND PLL2
With this selection, the LOCKDET output pin will be “high” if either one of the
following conditions are true.
a.
If both PLL1 and PLL2 are in the “LOCK” condition, (applies if both PLL1 and
PLL2 are enabled) or
b.
If the only enabled PLL is in the “LOCK” condition (applies only if one of the
PLLs are enabled).
01
The LOCK Condition of PLL2 Only
With this selection, only the “LOCK” state of PLL2 will be reflected in the LOCKDET
output pin.
LOCKDET = “high” if PLL2 is in “LOCK”.
LOCKDET = “low” if PLL2 is out of “LOCK”.
10
The LOCK Condition of PLL1 Only
With this selection, only the “LOCK” state of PLL1 will be reflected in the LOCKDET
output pin.
LOCKDET = “high” if PLL1 is in “LOCK”.
LOCKDET = “low” if PLL1 is out of “LOCK”.
11
LOCKDET will be unconditionally pulled to “LOW”
Table 3. Relationship Between the Values of the LDETDIS[2:1]
Bit-Fields and the Meaning of the LOCKDET Output Signal
4.0 Instructions for Configuring the XRT8001 WAN
Clock
As mentioned earlier, the XRT8001 WAN Clock can be
configured to operate in the following modes:
The “Forward/Master” Mode
The “Reverse/Master” Mode
The “Fractional T1/E1 Reverse/Master” Mode
The “E1 to T1 – Forward/Master” Mode
The “High Speed – Reverse” Mode
The “Forward/Slave” Mode
A detailed description of the operation and the configu-
ration steps for each of these configurations follows.
4.1 The “Forward/Master” Mode.
When the XRT8001 WAN Clock has been configured to
operate in the “Forward/Master” Mode, then it will
accept an “N x 1.544MHz” or an “N x 2.048MHz” clock
signal via the “Reference Clock” input at FIN (pin 3);
where “N” can range anywhere between 1 and 16. In
response to this clock signal, the XRT8001 WAN Clock
will output either a “K x 56kHz” or a “K x 64kHz” clock
signal, via the Clock Output pins (CLK1 and/or CLK2).
A simple illustration of the XRT8001 WAN Clock,
operating in the “Forward/Master” Mode is shown in
figure 13.
相关PDF资料
PDF描述
XRT8010IL-F IC CLK MULTIPLR LVDS 16QFN
XRT8020IL-F IC CLK MULTIPLR LVDS 16QFN
XRT91L31IQ IC TXRX SONET/SDH 8BIT 64QFP
XRT91L33IG-F IC MULTIRATE CDR 20TSSOP
XRT91L34IV-F IC MULTIRATE CDR QUAD 128LQFP
相关代理商/技术参数
参数描述
XRT8010 制造商:EXAR 制造商全称:EXAR 功能描述:312MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS
XRT8010ES 功能描述:锁相环 - PLL RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray
XRT8010IL 制造商:EXAR 制造商全称:EXAR 功能描述:312MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS
XRT8010IL-F 功能描述:锁相环 - PLL . . RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray
XRT8020 制造商:EXAR 制造商全称:EXAR 功能描述:650 MHZ CLOCK & CRYSTAL MULTIPLIER WITH LVDS OUTPUTS