The ECMF04-4AMX12 from STMicroelectronics is a common mode filter with integrated ESD protection, designed to suppress EMI/RFI common mode noise on high-speed differential serial buses such as MIPI D-PHY or MDDI. The document states a very large differential bandwidth of more than 6 GHz, common mode attenuation of -34 dB at 900 MHz and -20 dB between 800 MHz and 2.2 GHz, and a thin 0.6 mm max package.
The datasheet covers absolute maximum ratings, electrical characteristics, attenuation and ESD measurement curves, application information, the ordering information scheme, HQFN-12L package dimensions, footprint and marking, tape and reel specifications, and the ordering table (ECMF04-4AMX12, HQFN-12L, 3000 pieces on 7-inch tape and reel).
| Differential bandwidth | > 6 GHz |
|---|---|
| Common mode attenuation at 900 MHz | -34 dB |
| Common mode attenuation, 800 MHz to 2.2 GHz | -20 dB |
| Package height | 0.6 mm max |
| Maximum DC current | 200 mA |
| Operating temperature | -40 to +85 °C |
| DC serial resistance | 1.8 to 2.5 Ω |
| Leakage current per line | 100 nA |
| Package | HQFN-12L |
The pins comply with IEC 61000-4-2 level 4.
The maximum DC current is 200 mA.
It is supplied in an HQFN-12L package, 3000 pieces on 7-inch tape and reel.