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DS1085Z-25 PDF预览

DS1085Z-25

更新时间: 2024-02-23 08:55:30
品牌 Logo 应用领域
达拉斯 - DALLAS 信号电路锁相环或频率合成电路光电二极管
页数 文件大小 规格书
21页 332K
描述
EconOscillator Frequency Synthesizer

DS1085Z-25 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:2.27Samacsys Confidence:3
Samacsys Status:Released2D Presentation:https://componentsearchengine.com/2D/0T/231946.1.2.png
Schematic Symbol:https://componentsearchengine.com/symbol.php?partID=231946PCB Footprint:https://componentsearchengine.com/footprint.php?partID=231946
3D View:https://componentsearchengine.com/viewer/3D.php?partID=231946Samacsys PartID:231946
Samacsys Image:https://componentsearchengine.com/Images/9/DS1085Z-25+.jpgSamacsys Thumbnail Image:https://componentsearchengine.com/Thumbnails/1/DS1085Z-25+.jpg
Samacsys Pin Count:8Samacsys Part Category:Integrated Circuit
Samacsys Package Category:Small Outline PackagesSamacsys Footprint Name:21-0041
Samacsys Released Date:2015-11-27 06:31:41Is Samacsys:N
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:1
端子数量:8最高工作温度:70 °C
最低工作温度:最大输出时钟频率:133 MHz
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm最大供电电压:5.25 V
最小供电电压:4.75 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

DS1085Z-25 数据手册

 浏览型号DS1085Z-25的Datasheet PDF文件第2页浏览型号DS1085Z-25的Datasheet PDF文件第3页浏览型号DS1085Z-25的Datasheet PDF文件第4页浏览型号DS1085Z-25的Datasheet PDF文件第6页浏览型号DS1085Z-25的Datasheet PDF文件第7页浏览型号DS1085Z-25的Datasheet PDF文件第8页 
DS1085  
REGISTER FUNCTIONS  
The user-programmable registers can be used to determine the mode of operation (MUX), operating  
frequency (DAC, OFFSET, DIV), and bus settings (ADDR). The functions of the registers are described  
in this section, but details of how these registers are programmed can be found in a later section. The  
register settings are nonvolatile, with the values being stored automatically or as required in EEPROM  
when the registers are programmed through the SDA and SCL pins.  
DAC WORD (Address 08h)  
MSB  
LSB MSB  
d2 d1  
LSB  
X
d9 d8  
d7  
d6  
d5  
d4  
d3  
d0  
X
X
X
X
X
First Data Byte  
Second Data Byte  
X = Don’t care.  
The DAC word (d0–d9) controls the frequency of the master oscillator. The resolution of this register  
depends on the step size of the device. The absolute frequency of the device also depends on the value of  
the OFFSET register (see Table 5 and 6).  
Table 5. DEFAULT DAC SETTINGS  
DS1085Z-10  
Frequency DAC Offset  
97.1MHz 500 OS  
DS1085Z-25  
Frequency DAC Offset  
104.6MHz 600 OS  
DS1085Z-50  
Frequency DAC Offset  
101.8MHz 500 OS  
For any given value of OFFSET the master oscillator frequency can be derived as follows:  
Frequency = Min Frequency + DAC x Step Size  
where: Min frequency is the lowest frequency shown in Table 6 for the corresponding offset.  
DAC is the value of the DAC register (0–1023).  
Step size is the step size of the device (10kHz, 25kHz, or 50kHz).  
OS is the decimal, integer value of the five MSBs of the RANGE register.  
OFFSET BYTE (Address 0Eh)  
MSB  
LSB  
X
X
X
O4  
O3  
O2  
O1  
O0  
X = Don’t care.  
The OFFSET byte (O0–O4) determines the range of frequencies that can be obtained within the absolute  
minimum and maximum range of the oscillator. Correct operation of the device is not guaranteed for  
values of OFFSET not shown in Table 6.  
5 of 21  

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