Date: 26/12/2008

Small size filter devices to protect LCD screens on 3G phones

Semtech Corp. launched the EClamp 237xK family of resistor-capacitor (R-C) protection devices with the low capacitance, high attenuation and low clamping voltage needed for high-resolution color LCD interfaces in GSM and CDMA-based 3G handsets.

The devices expand Semtech's EMIClampTM protection products portfolio by safeguarding lines from cellular frequencies between 1.8 GHz to 2.5 GHz - the data rates required by the latest generation of high-resolution LCD screens used for visually oriented 3G handsets. The EClamp237xK series includes the four-line EClamp2374K, the six-line EClamp2376K and the eight-line EClamp2378K.

Each device in the family includes TVS diodes for electrostatic discharge (ESD) protection and an R-C network for electromagnetic interference (EMI) and radio frequency interference (RFI) filtering

Key Features of the EClamp237xK

1. Protection and filtering for 4, 6, or 8 lines
2. Three-pole R-C filters for high level of feature integration
3. 500 micron package height and 400 micron lead pitch
4. Filter performance: 30dB minimum attenuation 1.8 GHz to 2.5 GHz
5. Resistor series: 100 Ohm; Capacitors: 20pF
6. ESD protection to IEC 61000-4-2 Level 4 (±15kV air; ±8kV contact)
7. RoHS & WEEE compliance

Packaging: Semtech Leadless Package (SLP)
Pricing:
1. EClamp2374K is priced at $0.25 each in 1,000-piece lots;
2. EClamp2376K is priced at $0.33 each in 1,000-piece lots;
3. EClamp2378K is priced at $0.40 each in 1,000-piece lots.

Availability: All three parts are available immediately in production quantities.

For more information, visit http://www.semtech.com.