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Interference Technology

For EMI / EMC Engineers

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Chip Combines All EMI Filtering and ESD Protection for All Handset Speaker and Microphone Channels

 

The new EMIF06-AUD01F2 from STMicroelectronics implements complete EMI filtering and ESD protection for all handset speaker and microphone channels. The EMIF06-AUD01F2 eliminates audible handset demodulation noise by achieving -25 dB attenuation through the stop-band 800 – 2480 MHz, using high density 1.3-nF PZT (lead, zirconate titanate) capacitors on the microphone lines. It … [Read more...]

Spread-Spectrum Oscillator Limits EMI

 

The VSS4 spread-spectrum oscillator from Vectron International meets FCC restrictions on permissible levels of EMI for a range of communications systems and consumer electronics applications. The VSS4 offers a frequency range of 12 MHz to 168 MHz and operates in the 140- to 85-degree C temperature range. The oscillator operates off 3.3 volts and comes with an enable/disable … [Read more...]

Third Generation of Filter Architecture Targets Telecom Applications

 

The third generation of the Praetorian LC filter architecture from California Micro Devices is based on an innovative coupled inductor design. The Praetorian III architecture utilizes a six-pole, pi filter topology and features high cutoff frequencies, high levels of attenuation, and robust ESD protection up to 15-kV contact discharge consistent with the IEC 61000-4-2 level 2 … [Read more...]

Industry Group Indicates Concerns with Expansion of RoHS

 

IPC, an international global trade association, representing the electronic interconnects industry including design and PCB manufacturing, has expressed concern over proposed expansion of the number of substances restricted by RoHS. Specifically, an IPC group meeting in Brussels reacted to a report by the Öko-Institut. The institute had been contracted by the European Union … [Read more...]

Meter Allows Direct Measurement of Electrostatic Charge on Objects

 

The Model 284 NanoCoulomb Meter from Monroe Electronics directly measures electrostatic discharge on conductive, dissipative, or insulative objects. Model 284 is well suited to standards testing ESD packaging, populated PC boards, disk drive components, and other electronic devices. This is especially true for test methods that require charge measurements such as ANSI/ESD S541 … [Read more...]

Meter Measures ESD on Conductive, Dissipative, or Insulative Objects

 

The Model 284 NanoCoulomb Meter from Monroe Electronics directly measures electrostatic discharge on conductive, dissipative, or insulative objects. Model 284 is well suited to standards testing ESD packaging, populated PC boards, disk drive components, and other electronic devices. This is especially true for test methods that require charge measurements such as ANSI/ESD S541 … [Read more...]

Extensive Line of Surge Suppressors Covers Wide Range of Applications

 

The IT Protector® line of surge suppressors from MEM includes products that cover a wide range of commercial and industrial surge suppression applications. The IT Protector® line includes AC power, data, and communications models. Many factors influence the selection of the right model. These factors are directly related to the size and complexity of a facility, as well as … [Read more...]

ESD-Protected Analog Switches Target Portable Low-Power Applications

 

The MAX4906EF from Maxim Semiconductor are ESD-protected analog switches that combine the low on capacitance (CON) and low on-resistance (RON) necessary for high performance switching applications. COM_analog inputs are protected against ±15 kV ESD without latch-up or damage. The device is designed for USB 2.0 high-speed applications at 480 Mbps. The switches also handle all … [Read more...]

ESD Protection Array Clamp Safeguards Deep Submicron ASICS

 

The CM1231 is a member of the XtremeESD™ product family from California Micro Devices and is specifically designed for next generation deep submicron ASIC protection. These devices are ideal for protecting systems with high data and clock rates and for circuits requiring low capacitive loading such as USB 2.0. The CM1231 incorporates the PicoGuard XP™ dual stage ESD … [Read more...]

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