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DS1077LU-40 PDF预览

DS1077LU-40

更新时间: 2024-02-26 07:29:23
品牌 Logo 应用领域
达拉斯 - DALLAS 外围集成电路光电二极管时钟
页数 文件大小 规格书
20页 274K
描述
3V EconOscillator/Divider

DS1077LU-40 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:TSSOP,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:5.25JESD-30 代码:S-PDSO-G8
JESD-609代码:e3长度:3 mm
湿度敏感等级:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出时钟频率:40 MHz封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.1 mm
最大供电电压:3.6 V最小供电电压:2.7 V
标称供电电压:3 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 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 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHERBase Number Matches:1

DS1077LU-40 数据手册

 浏览型号DS1077LU-40的Datasheet PDF文件第1页浏览型号DS1077LU-40的Datasheet PDF文件第2页浏览型号DS1077LU-40的Datasheet PDF文件第4页浏览型号DS1077LU-40的Datasheet PDF文件第5页浏览型号DS1077LU-40的Datasheet PDF文件第6页浏览型号DS1077LU-40的Datasheet PDF文件第7页 
DS1077L  
OVERVIEW  
A block diagram of the DS1077L is shown in Figure 1. The DS1077L consists of four major components:  
1) internal master oscillator, 2) prescalers, 3) programmable divider, and 4) control registers.  
The internal oscillator is factory trimmed to provide a master frequency (master clk) that can be routed  
directly to the outputs (OUT0 & OUT1) or through separate prescalers (P0 & P1). OUT1 can also be  
routed through an additional divider (N).  
The prescaler (P0) divides the master clock by 1, 2, 4, or 8 to be routed directly to the OUT0 pin.  
The prescaler (P1) divides the master clock by 1, 2, 4, or 8 that can be routed to the OUT1 pin or to the  
divider (N) input, which is then routed to the OUT1 pin.  
The programmable divider (N) divides the prescaler output (P1) by any number selected between 2 and  
1025 to provide the main output (OUT1) or it can be bypassed altogether by use of the DIV1 register bit.  
The value of N is stored in the N register.  
The control registers are user-programmable through a 2-wire serial interface to determine operating  
frequency (values of P0, P1, and N) and modes of operation. The register values are stored in EEPROM  
and, therefore, only need to be programmed to alter frequencies and operating modes.  
PIN DESCRIPTIONS  
OUTPUT 1 (OUT1) – This pin is the main oscillator output; its frequency is determined by the control  
register settings for the prescaler P1 (mode bits 1M1 and 1M0) and divider N (DIV WORD).  
OUTPUT 0 (OUT0) – A reference output, OUT0, is taken from the output of the reference-select MUX.  
Its frequency is determined by the control register settings for CTRL0 and values of prescaler P0 (mode  
bits 0M1 and 0M0). (See Table 1.)  
CONTROL PIN 0 (CTRL0) – A multifunctional input pin that can be selected as a MUX select, output  
enable, and/or a power-down. The user-programmable control register values EN0, SEL0, and PDN0  
determine its function. (See Table 1.)  
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