Electronics Technology


Low-jitter, spread-spectrum clock modulator

19 September 2007 Electronics Technology

Maxim has introduced the DS1081L 16 MHz to 134 MHz, centre spread-spectrum clock modulator with 75 ps cycle-to-cycle jitter performance. This modulator uses an integrated phase-locked loop (PLL) to dither the clock output around its centre frequency at a user-selectable magnitude from 0 (disabled) to ±2,0%, thus reducing peak EMI at fundamental and harmonic frequencies. This EMI reduction is accomplished without changing clock rise/fall times or adding the space, weight, design time and costs associated with mechanical shielding. The low-cost device is ideal for dithering the row/column-driver clock signal in large-format LCD panels in televisions and PC monitors. Packaged in an 8-pin TSSOP, the DS1081L provides logic inputs that allow the user to set the dither rate and magnitude, disable/enable spread-spectrum modulation, and shut down the output to conserve power. The DS1081L provides 3,0 V to 3,6 V operation over the temperature range of -40°C to +125°C.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

USB Type-C power delivery controller
30 June 2020, CST Electronics , Power Electronics / Power Management
The MAX77958 from Maxim Integrated is a robust solution for USB Type-C CC detection and power delivery (PD) protocol implementation. It detects connected accessories or devices by using Type-C CC detection ...

Read more...
Highly accurate 1-wire temperature sensor
29 April 2020, CST Electronics , Analogue, Mixed Signal, LSI
The MAX31825 temperature sensor from Maxim Integrated provides 8-bit to 12-bit Celsius temperature measurements with better than ±1°C accuracy from 0°C to +70°C and ±1,75°C from -45°C to +145°C. The ...

Read more...
Low-power power management IC
29 May 2020, CST Electronics , Power Electronics / Power Management
The MAX77654 from Maxim Integrated provides highly integrated battery charging and power supply solutions for low-power applications where size and efficiency are critical. The IC features a SIMO buck-boost ...

Read more...
Stable perovskite LEDs one step closer
25 March 2020 , Electronics Technology
Researchers at Sweden’s Linköping University, working with colleagues in Great Britain, China and the Czech Republic, have developed a perovskite light-emitting diode (LED) with both high efficiency and ...

Read more...
Infineon works with Qualcomm for 3D authentication
25 March 2020 , Electronics Technology
Infineon Technologies has collaborated with Qualcomm Technologies to develop a reference design for 3D authentication based on the Qualcomm Snapdragon 865 mobile platform. Infineon is thus extending its ...

Read more...
Gate driver for silicon carbide transistors
29 January 2020, CST Electronics , Analogue, Mixed Signal, LSI
With the MAX22701E isolated gate driver from Maxim Integrated Products, designers of high-voltage/high-power systems can improve power supply efficiency, reducing power loss and the resulting carbon footprint. ...

Read more...
Isolated SiC gate driver
25 November 2019, CST Electronics , Analogue, Mixed Signal, LSI
With the MAX22701E isolated gate driver from Maxim Integrated Products, designers of high-voltage/high-power systems can improve power supply efficiency, reducing power loss and the resulting carbon footprint. ...

Read more...
Online training: Battery Safety and Protection Overview
23 October 2019 , Electronics Technology, Multimedia, Videos
So many of the portable devices, electronic equipment, and tools we use every day are powered with lithium-ion battery systems. But one challenge for engineers who design these lithium-ion-powered products ...

Read more...
Battery protectors with integrated fuel gauges
25 September 2019, CST Electronics , Power Electronics / Power Management
Designers concerned about battery safety now have access to an advanced battery protector with integrated fuel gauges from Maxim Integrated Products. The newest 1-cell, pack-side ICs in this portfolio ...

Read more...
Low-power real-time clock
31 July 2019, CST Electronics , Analogue, Mixed Signal, LSI
The MAX31341B nanoPower real-time clock (RTC) from Maxim Integrated Products enables designers of space-constrained systems such as wearables, medical monitors, point-of-sale (POS) equipment and portable ...

Read more...