Praetorian® L-C LCD and Camera

EMI Filter Array with ESD Protection

CM1690

©2010 SCILLC. All rights reserved.

Publication Order Number:

May 2010 – Rev. 2

CM1690/D

Features

•

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)

•

±

30kV ESD protection on each channel (HBM)

•

Greater than -35dB attenuation (typical) at 1GHz

•

0.5mm thick uDFN package with 0.40mm lead

pitch:

• 4-channel = 8-lead uDFN

• 6-channel = 12-lead uDFN

• 8-channel = 16-lead uDFN

•

Tiny uDFN package size:

• 8-lead: 1.70mm x 1.35mm

• 16-lead: 3.30mm x 1.35mm

•

Lead-free packaging

Applications

•

LCD and camera data lines in mobile handsets

•

Wireless handsets

•

LCD and camera modules

Product Description

The CM1690 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 uDFN

0.40mm pitch packages. Each EMI filter channel of

the CM1690 is implemented as a 3-pole L-C filter

where the component values are 16pF-12nH-16pF.

The CM1690's roll-off frequency at –6dB attenuation

is 330MHz and can be used in applications where the

data rates are as high as 140Mbps while providing

greater than -35dB attenuation over the 1.0GHz to

3.0GHz 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.

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.

This device 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 CM1690 is ideal for

EMI filtering and protecting data and control lines for

the LCD display and camera interface in mobile

handsets.

The CM1690 is available in space saving, ultra low

profile 8-, 12-, and 16-lead 0.40mm uDFN packages

with lead-free finishing.