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| 型号： | DS1090U-8+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC ECONOSCILLATOR SS 8-USOP |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 系列： | EconOscillator™ |
| 类型： | 时钟发生器 |
| PLL： | 无 |
| 输入： | 时钟 |
| 输出： | CMOS，TTL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:1 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 8MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
General Description
The DS1090 is a low-cost, dithered oscillator intended
to be used as an external clock for switched-mode
power supplies and other low-frequency applications.
The dithering or sweeping function reduces peak-radi-
ated emissions from the power supply at its fundamen-
tal frequency, as well as harmonic frequencies. The
device consists of a resistor-programmed master oscil-
lator, factory-programmed clock prescaler, and a pin-
programmed dither circuit. These features allow the
DS1090 to be used in applications where a spread-
spectrum clock is desired to reduce radiated emis-
sions. A combination of factory-set prescalers and
external resistor allows for output frequencies ranging
from 125kHz to 8MHz. Both dither frequency and dither
percentage are set using control pins.
Applications
Switched-Mode Power Supplies
Servers
Printers
Embedded Microcontrollers
Industrial Controls
Automotive Applications
Features
Low-Cost, Spread-Spectrum EconOscillator
Simple User Programming
Output Frequency Programmable from 125kHz
to 8MHz
Dither Percentage Programmable from 0% to 8%
Dither Rate Programmable (fMOSC / 512, 1024,
2048, or 4096 )
3.0V to 5.5V Single-Supply Operation
CMOS/TTL-Compatible Output
Operating Temperature Range: -40°C to +85°C
DS1090
Low-Frequency, Spread-Spectrum
EconOscillator
______________________________________________
Maxim Integrated Products
1
J1
J0
GND
1
2
8
7
JC1
JC0
RSET
VCC
OUT
μSOP
TOP VIEW
3
4
6
5
DS1090
Pin Configuration
Ordering Information
DS1090
VOUT
VIN
DC-DC
STEP-DOWN
CONVERTER
OUT
GND
VCC
RSET
JC0
JC1
J0
J1
45k
Ω
TO 91k
Ω
Typical Operating Circuit
Rev 1; 2/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Add “T” for Tape & Reel orders.
PART
OUTPUT
FREQUENCY
RANGE
PRESCALER
PIN-
PACKAGE
DS1090U-1+
4MHz to 8MHz
1
8 μSOP
DS1090U-2+
2MHz to 4MHz
2
8 μSOP
DS1090U-4+
1MHz to 2MHz
4
8 μSOP
DS1090U-8+
500kHz to
1MHz
8
8 μSOP
DS1090U-16+
250kHz to
500kHz
16
8 μSOP
DS1090U-32+
125kHz to
250kHz
32
8 μSOP
EconOscillator is a trademark of Dallas Semiconductor.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1091LN-66+ | 功能描述:时钟发生器及支持产品 Spread-Spectrum EconOscillator Auto 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 |
| DS1091LU-66+ | 功能描述:时钟发生器及支持产品 Spread-Spectrum EconOscillator Auto 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 |
| DS1091LUA-027+ | 功能描述:时钟发生器及支持产品 Spread-Spectrum EconOscillator Auto 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 |
| DS1091LUA-027+T | 功能描述:时钟发生器及支持产品 Spread-Spectrum EconOscillator Auto 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 |
| DS1091LUA-030/V+ | 功能描述:时钟发生器及支持产品 Spread-Spectrum EconOscillator 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 |
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