1.1 General description
The IP4256CZ3-M is a single-channel low-pass filter while the IP4256CZ5-W and
IP4256CZ6-F are dual-channel RC low-pass filters. All devices provide high-level
ElectroStatic Discharge (ESD) protection.
The devices are designed to protect a range of portable communication transmitter
applications against unwanted RF signals. The devices incorporate diodes to provide
protection to downstream components from ESD voltages up to ±25 kV contact discharge
far exceeding IEC 61000-4-2, level 4.
The devices are manufactured using monolithic silicon technology in lead-free plastic
packages.
1.2 Features and benefits
Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen
and antimony (Dark Green compliant)
100 Ω series channel resistance and 30 pF channel capacitance at 0 V bias
voltage (DC)
ESD protection up to ±25 kV contact discharge far exceeding IEC 61000-4-2, level 4
Single and dual-channel integrated π-type RC filter network
IP4256CZ3-M: single-channel device in a 3-pin Quad Flat-pack No-leads (QFN)
compatible MicroPak plastic package
IP4256CZ5-W: dual-channel device in a 5-pin plastic package with 0.5 mm pitch
IP4256CZ6-F: dual-channel device in a 6-pin QFN compatible MicroPak plastic
package with 0.5 mm pitch
1.3 Applications
General-purpose ElectroMagnetic Interference (EMI), Radio Frequency
Interference (RFI) filtering and downstream ESD protection for:
Cellular phone and Personal Communication System (PCS) mobile handset
Cordless telephone
Wireless data (WAN/LAN) system