ESD protection for display, camera and USB interfaces
31 October 2007
Circuit & System Protection
The introduction of multimedia services in 3G phones is driving the increase in resolution of graphic displays and multiformat data exchange and storage. As a result, the parallel interfaces between displays and camera modules to the baseband or multimedia processor, via the flex cable, become tough cabling and EMI constraints. To solve this issue, several specifications of high speed serial interfaces have been introduced.
STMicroelectronics has introduced a new family of low line capacitance ESD protection which break the 1 pF barrier. These devices ensure a high level of signal integrity without compromising the protection of sensitive chips against the most stringently characterised ESD strikes.
The DSILC6-4xx device offers 15 kV ESD protection to four data lines. It has a 2,5 pF maximum line-to-GND capacitance and 1,25 pF maximum line-to-line capacitance. It is available in SOT-666 and Flip-Chip packages, with ultra-small package thickness of just 0,6 mm. This device is compliant with MDDI, SMIA and MIPI specifications, and offers no insertion loss up to 2,0 GHz.
The USBULC6-2M6 device protects two data lines against ESD up to 15 kV and is high speed USB specification compliant up to 480 Mbps. It boasts 1 pF maximum line-to-GND capacitance and 0,5 pF maximum line-to-line capacitance. This device provides integrated protection of the VBUS, with no insertion loss up to 5,0 GHz. It is available in a micro leadless package taking up PC board surface area of 1,5 mm² with a thickness of 0,6 mm.
The USBULC6-2F3 provides 15 kV ESD protection to two data lines and has a 1,2 pF maximum line-to-GND capacitance. It offers leakage current less than 100 nA for longer operation of battery powered devices. It is high speed USB specification compliant up to 480 Mbps, provides no insertion loss up to 7,0 GHz and is available in a highly integrated Flip-Chip package of size 0,9 mm² with 0,4 mm pitch.
Further reading:
Clearing the Static: Conductive foot, heel and shoe grounders
Actum Electronics
Circuit & System Protection
Conductive foot, heel and shoe grounders are used in electrostatic discharge protected areas to provide a path to ground for static electricity.
Read more...
LED driver for industrial power supply indication
Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
Read more...
Clearing the Static: Cleaning in an ESD-protected area
Actum Electronics
Circuit & System Protection
Cleaning in a protected electrostatic discharge area is a critical task to maintain the integrity of sensitive electronic components and prevent damage caused by static electricity.
Read more...
Clearing the Static: Key principles of ESD control in electronics manufacturing
Actum Electronics
Circuit & System Protection
Effectively managing electrostatic discharge is essential in electronics manufacturing to ensure not only product reliability, but also worker safety.
Read more...
Clearing the Static: Three steps for a dry ESD packaging system
Actum Electronics
Circuit & System Protection
For optimal storage, it’s essential to complete the dry-packaging system by adding Desiccant Packs and Humidity Indicator Cards.
Read more...
Ensuring safety with earth leakage protection
NewElec Pretoria
Circuit & System Protection
Earth leakage protection helps mitigate the risks of electric shocks, fires, and equipment damage by swiftly identifying faults and disconnecting the power supply, thus safeguarding both human lives and machinery.
Read more...
Suppressing EMI with filters
Vepac Electronics
Circuit & System Protection
EMI/RFI filters play an important role in reducing the high-frequency noise that is generated by various electrical and electronic devices.
Read more...
Patch attenuates like a shielding cabinet
Würth Elektronik eiSos
Circuit & System Protection
Würth Elektronik has launched its hybrid WE-EMIP EMI absorber sheet, a convenient solution for reducing electromagnetic interference by up to 40 dB.
Read more...
Clearing the Static: Ionisation equipment
Actum Electronics
Circuit & System Protection
Electrostatic discharge (ESD) ionisation equipment is designed to neutralise static charges that accumulate on surfaces in environments where ESD-sensitive components or materials are handled. These
...
Read more...
Motor and feeder protection for LV and MV environments
NewElec Pretoria
Circuit & System Protection
This relay from NewElec is a micro-controller-based precision instrument with ANSI protection elements, advanced control features, and switchgear controller logic integrating motor and feeder control functions.
Read more...
printer friendly version