参数资料
型号: XRT8000IP-F
厂商: Exar Corporation
文件页数: 6/24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,同步器,多路复用器
PLL:
主要目的: 电信
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: 2.048MHz
电源电压: 3.135 V ~ 5.25 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
XRT8000
14
Rev. 1.11
CR5 Register (Power On State = “00000”)
D0 : ( PL1/8) :
Select the divider by 8 for PLL1,
PL1/8 = “1” CLK1 output frequency is divided by 8.
PL1/8 = “0” CLK1 output frequency is as per table 4.
D1 : ( PL2/8) :
Select the divider by 8 for PLL2,
PL2/8 = “1” CLK2 output frequency is divided by 8.
PL2/8 = “0” CLK2 output frequency is as per table 5.
D2 : ( CLK2EN) , PLL2:
Output enable bit,
CLK2EN = “1” CLK2 output is enabled.
CLK2EN = “0” CLK2 output is Tri State D.
D3 : ( CLK1EN) , PLL1:
Output enable bit,
CLK1EN = “1” CLK1 output is enabled.
CLK1EN = “0” CLK1 output is Tri State D.
D4 : ( SYNCEN) , 8kHz SYNC enable bit:
SYNCEN = “1” SYNC output is enabled.
SYNCEN = “0” SYNC output is Tri State D.
CR6 to CR7 Register
Register reserved for future use.
Address
Data In
Data Out
R/W
A0
A1
A2
A3
A4
A5
A6
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
HiZ
SDO
SDI
SCLK
CSB
Figure 4. Serial Processor Interface Data Structure
Note
:
A3, A4 and A5 always Low.
A6 Do not care.
R/W bit = 1 for a read operation
2 for a write operation
D5, D6 and D7 always Low
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SERIAL INTERFACE
The serial interface is a simple four wire interface that is
compatible with many of the microcontrollers available in
the market. This interface consists of the following
signals:
CSB
Chip Select (Active Low)
SCLK
Serial Clock Input
SDI
Serial Data Input
SDO
Serial Data Output
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