Integrated (U)SIM card passive filter array with ESD protection

The IP4264CZ8-10-TTL, IP4264CZ8-20-TTL and IP4264CZ8-40-TTL are 3-channel RC low-pass filter arrays. They are designed to provide filtering of undesired RF signals in the 800 MHz-to-3000 MHz frequency band. They incorporate diodes to provide protection to downstream components from ElectroStatic Discharge (ESD) voltages up to ±25 kV contact and higher than ±25 kV air discharge, far exceeding IEC 61000-4-2, level 4.

The devices support ESD protection of the USB data pins of a Universal Subscriber Identity Module (USIM) interface, as well as the digital standard SIM interface ESD protection and ElectroMagnetic Interface (EMI) filtering.

The devices are fabricated using monolithic silicon technology. They integrate three resistors and eight high-level ESD protection diodes in a 0.4 mm pitch Quad Flat-pack No-leads (QFN) plastic package with a height of only 0.5 mm. These features make all three devices ideal for use in applications requiring component miniaturization, such as mobile phone handsets, cordless telephones and personal digital devices.

Similar products are available in Wafer Level Chip-Size Package (WLCSP). IP4365CX11/P (0.4 mm pitch, 11-ball WLCSP11) is designed for USIM interfaces. IP4364CX8 (0.4 mm pitch, 8-ball WLCSP8) and IP4064CX8 (0.5 mm pitch, 8-ball WLCSP8) are designed for SIM interfaces.