spread-spectrum (dithered) square-wave output of fre-
quencies from 130kHz to 66.6MHz. The DS1087L is
shipped from the factory programmed at a specific fre-
quency and spread-spectrum percentage. The user still
has access to an internal frequency divider, selectable
2% or 4% dithered output, and programmable output
power-down/disable mode through a 2-wire program-
ming interface. All the device settings are stored in non-
volatile (NV) EEPROM allowing it to operate in
stand-alone applications. The DS1087L has power-
down and output-enable control pins for power-sensi-
tive applications.
Features
♦
Factory Programmed Square-Wave Generator
from 130kHz to 66.6MHz
♦
No External Timing Components Required
♦
EMI Reduction
♦
2.7V to 3.6V Supply
♦
User Programmable Down to 130kHz with Divider
(Dependent on Master Oscillator Frequency)
♦
2% or 4% Selectable Dithered Output
♦
Glitchless Output-Enable Control
♦
2-Wire Serial Interface
♦
Nonvolatile Settings
♦
Power-Down Mode
♦
Programmable Output Power-Down/Disable Mode
DS1087L
Applications
Printers
Copiers
PCs
Computer Peripherals
Cell Phones
Cable Modems
Ordering Information
PART
DS1087LU-yxx
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
8 µSOP (118 mils)
Standard Frequency Options
PART
DS1087LU-202
DS1087LU-402
DS1087LU-210
DS1087LU-216
DS1087LU-266
DS1087LU-466
DS1087LU-yxx
FREQUENCY (MHz)
2.0480
2.0480
10.0
16.6
66.6
66.6
Fixed up to 66.6
SPREAD (%)
2
4
2
2
2
4
2 or 4
SPRD
V
CC
2
OUT
1
Pin Configuration
TOP VIEW
8
7
SCL
SDA
PDN
OE
DS1087L
3
6
5
GND
4
Custom frequencies and over 20 standard frequencies avail-
able, contact factory.
µSOP
(118 mils)
EconOscillator is a trademark of Dallas Semiconductor.
Typical Operating Circuits appear at end of data sheet.
______________________________________________
Maxim Integrated Products
1
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.
3.3V Spread-Spectrum EconOscillator
DS1087L
ABSOLUTE MAXIMUM RATINGS
Voltage Range on V
CC
Relative to Ground ..........-0.5V to +6.0V
Voltage Range on SPRD,
PDN,
OE, SDA, SCL
Relative to Ground* ................................-0.5V to (V
CC
+ 0.5V)
Operating Temperature Range ...........................-40°C to +85°C
*This
voltage must not exceed 6.0V.
Programming Temperature Range .........................0°C to +70°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature ..................See IPC/JEDEC J-STD-020A
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Researchers from several cybersecurity companies have proven that Tesla can be easily hacked.David Colombo, a 19-year-old German security researcher, said recently that he found a software vulnerabili...
IF IMGFLASH !
IF BSP_EP931X_COPY_FLASH_TO_RAM !
;**********************************************************************
;
; Boot from RAM
;
;***********************************************************...
I just started learning NIO II and found that I didn't know where to start. The key is the C language programming of NIO II. Although there are many tutorials on the Internet, there are not many that ...
The reference designs demonstrate wire-speed operation of the Altera 10-Gbps Ethernet (10GbE) reference design component described in AN516:10-Gbps Ethernet Reference Design;one using Arria II GX devi...
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
As time goes by, people are increasingly concerned about their own and their families' health. However, existing monitoring devices for individual vital signs have struggled to gain market share du...[Details]
Industrial computers with GPUs leverage powerful parallel processing to build deep learning models to analyze and respond to optical inputs. The systems develop an understanding of visual data to i...[Details]
A human-machine interface (HMI) refers to the platform used by people to operate a PLC. This platform provides an interface between programs and humans, serving as a medium for information transmis...[Details]
With the gradual popularization of new energy vehicles in recent years, more and more people have been able to access and purchase electric vehicles. The structure of electric vehicles is composed ...[Details]
Introduction: Traditionally, lead-acid batteries have primarily been used to provide backup power and power regulation based on location. In typical applications, the battery's actual use (discharg...[Details]
Pure electric vehicles have experienced rapid growth in recent years, and many consumers now consider them as a top choice when purchasing a car. But do you know how to choose a satisfactory and sa...[Details]
Electronics engineers all know that transient voltage suppression (TVS) diodes are used to protect ports, preventing damage to downstream circuits caused by transient voltage surges. In short, TVS ...[Details]
This series of articles aims to help readers have a brief understanding of the Hongke KPA Automation system and to quickly get started with MoDK, including: an introduction to Hongke KPA Automation...[Details]
Since entering the electronic components industry, I've learned that electronic components come in different packaging types. Some people have argued that different types of components may look the...[Details]
In the wave of electrification and intelligence in the automotive industry, the E/E architecture is transitioning from distributed to domain control and then to regional architecture.
Th...[Details]
According to the latest financial report data, thanks to its leading position in advanced technology, TSMC's profit performance in the second quarter of 2025 was extremely impressive, with net prof...[Details]
New energy electric vehicles are energy-saving, environmentally friendly, have low operating costs, and enjoy strong support from national policies. With the growth in sales of new energy electric ...[Details]
Which one has lower driving cost, electric vehicles or fuel vehicles? This is a topic of great concern to car users. Structurally, electric vehicles do not have mechanical transmission systems such...[Details]
Due to limitations in size, weight, and cost, most continuous-wave radar seekers use single-antenna technology. Insufficient isolation between the transmitter and receiver causes the transmitted si...[Details]
Industrial Control Electronics
京公网安备 11010802033920号
EEWORLD
