Camarillo, Calif. Semtech Corp. has released the EClamp 238xP, a family of resistor-capacitor (R-C) protection devices with the low capacitance, high attenuation and low clamping voltage needed for high-frequency color LCD interfaces used in GSM and CDMA-based 3G handsets.
The EClamp238xP series, part of the EMIClamp protection portfolio, includes the four-line EClamp2384P, the six-line EClamp2386P and the eight-line EClamp2388P. The EClamp238xP's two-pole R-C filter network has a 200-ohm resistor and two 12 pF capacitors, enabling the devices to offer minimal attenuation in the passband and 30 dB minimum attenuation from 800 MHz to 2.7 GHz, which is suitable for GSM, CDMA or 3G-based mobile phones.
Each device in the family includes TVS diodes for electrostatic discharge (ESD) protection and a R-C network for electromagnetic interference (EMI) and radio frequency interference (RFI) filtering. The high integration of the EClamp238xP devices replaces 32 discrete passive devices in a typical handset design. The devices offer ESD protection to IEC 61000-4-2 Level 4 (±15 kV air; ±8 kV contact).
The EClamp238xP devices are available in the RoHS/WEEE-compliant Semtech Leadless Package (SLP), which offers the same small, low-profile design as "flip chip" alternatives, but with increased manufacturing durability, according to Semtech.
The EClamp238xP packages are narrow (1.6 mm) and low profile (0.58 mm) with a variable length depending on the number of lines supported. The flow-through design of the devices alleviates the need for signal routing for a faster and more convenient layout, said Semtech.
Pricing: Each EClamp device is priced at $0.32 each in 1,000-piece lots
Availability: The EClamp2384P (order code: EClamp2384P.TCT), EClamp2386P (order code: EClamp2386P.TCT) and EClamp2388P (order code: EClamp2388P.TCT) are available immediately in production quantities.
Product information: EClamp2384P, EClamp2386P, and
Semtech Corp., 1-805-498-2111, www.semtech.com