CM1493

• Four, six, and eight channels of EMI filtering with integrated ESD protection
• Pi-style EMI filters in a capacitor-inductor-capacitor (C-L-C) network
• ±15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)
• Greater than -35dB attenuation (typical) at 1GHz
• TDFN lead-free package with 0.40mm lead pitch:
  • 4-ch. = 8-lead TDFN
  • 6-ch. = 12-lead TDFN
  • 8-ch. = 16-lead TDFN
• Tiny TDFN package size:
  • 8-lead: 1.70mm x 1.35mm
  • 12-lead: 2.50mm x 1.35mm
  • 16-lead: 3.30mm x 1.35mm
• Increased robustness against vertical impacts during manufacturing process
• RoHS compliant, lead-free, finishing

California Micro Devices&prime CM1493 is a family of pi-style EMI filter arrays with ESD protection, which integrates four, six and eight filters (C-L-C) in small form factor TDFN 0.40mm pitch packages. Each EMI filter channel of the CM1493 is implemented as a 3-pole L-C filter where the component values are 10pF-26nH-12pF. The CM1493&primes roll-off frequency at -6dB attenuation is 300MHz and can be used in applications where the data rates are as high as 140Mbps while providing greater than -35dB over the 800MHz to 2.7GHz frequency range. 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 connected to the filter ports are designed and characterized to safely dissipate ESD strikes of ±15kV, beyond the maximum requirement of the IEC61000-4-2 international standard.

CM1499-E6DE is particularly well suited for wireless handsets, mobile LCD modules and PDAs because of its small package format and easy-to-use pin assignments. In particular, the CM1493 is ideal for EMI filtering and protecting data and control lines for the LCD display and camera interface in mobile handsets.

The CM1493 is housed in space saving, low profile, 0.40mm pitch TDFN packages and is available in a RoHS-compliant, lead-free format.