Specifications- Four, six and eight channels of EMI filtering with integrated ESD protection
- Pi-style EMI filters in a capacitor-resistor-capacitor (C-R-C) network
- ±15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)
- ±30kV ESD protection on each channel (HBM)
- Greater than 35dB attenuation (typical) at 1 GHz
- uDFN package with 0.40mm lead pitch:
- 4-ch. = 8-lead uDFN
- 6-ch. = 12-lead uDFN
- 8-ch. = 16-lead uDFN
- Tiny uDFN package size::
- 8-lead: 1.7mm x 1.35mm x 0.50mm
- 12-lead: 2.5mm x 1.35mm x 0.50mm
- 16-lead: 3.3mm x 1.35mm x 0.50mm
- Increased robustness against vertical impacts during manufacturing process
- Lead-free finishing
DescriptionThe CM1631 is a family of pi-style EMI filter arrays with ESD protection, which integrates four, six and eight filters (C-R-C) in small form factor uDFN 0.40mm pitch packages. The CM1631 has component values of 15pF-100-15pF per channel. The CM1631 has a cut-off frequency of 120MHz and can be used in applications with data rates up to 48Mbps. The parts include ESD diodes on every pin, which provide a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The ESD protection diodes safely dissipate ESD strikes of ±15kV, well beyond the maximum requirement of the IEC61000-4-2 international standard. Using the MIL-STD-883 (Method 3015) specification for Human Body Model (HBM) ESD, the pins are protected for contact discharges at greater than ±30kV.
These devices are particularly well-suited for portable electronics (e.g. wireless handsets, PDAs, notebook computers) because of their small package and easy-to-use pin assignments. In particular, the CM1631 is ideal for EMI filtering and protecting data and control lines for the I/O data ports, LCD display and camera interface in mobile handsets.
The CM1631 is housed in space-saving, ultra-low-profile 8-, 12- and 16-lead uDFN packages with a 0.40mm pitch and is available with lead-free finishing. This smaller size uDFN package provides up to 42% board space saving vs. the 0.50mm pitch uDFN packages
CM1631 Data Sheet
