CM1234 datasheet(1/10 Pages) CALMIRCO

Part #	CM1234

Description	PicoGuard XSTM ESD Clamp Array For High Speed Data Line Protection

PDF	10 Pages

Scroll/Zoom	100%

Manufacturer	CALMIRCO [California Micro Devices Corp]

Direct Link	http://www.calmicro.com

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1 / 10 page

4/24/2008

490 N. McCarthy Blvd., Milpitas, CA 95035-5112

●

Tel: 408.263.3214

●

Fax: 408.263.7846

●

www.cmd.com

1

CM1234

Issue X-2

PicoGuard XSTM ESD Clamp Array For High Speed Data Line Protection

Features

•

ESD protection for 4 pairs of differential channels

•

ESD protection to IEC61000-4-2 Level 4

•

±15kV contact discharge

•

±20kV air discharge

•

Pass-through impedance matched clamp

architecture

•

Flow-through routing for high-speed signal integrity

•

Minimal line capacitance change with temperature

and voltage

•100

Ω matched impedance for each paired

differential channel

•

Each I/O pin can withstand over 1000 ESD strikes*

•

RoHS compliant (lead-free) TDFN-16 package

Applications

•

DVI ports, HDMI ports in notebooks, set top boxes,

digital TVs, LCD displays

•

General purpose high-speed data line ESD

protection

Product Description

The PicoGuard XS (Xtreme Speed) protection family is

specifically designed for next generation deep sub-

micron high speed data line protection.

The CM1234 is ideal for protecting systems with high

data and clock rates or for circuits requiring low

capacitive loading and tightly controlled signal skews

(with

channel-to-channel

matching

at

2%

max

deviation).

The device is particularly well-suited for protecting

systems using high-speed ports such as DVI or HDMI,

along with corresponding ports in removable storage,

digital

camcorders,

DVD-RW

drives

and

other

applications where extremely low loading capacitance

with ESD protection are required.

The CM1234 also features easily routed "pass-

through" pinouts in a RoHS compliant (lead-free),16-

lead TDFN, small footprint package.

*Standard test condition is IEC61000-4-2 level 4 test circuit with each pin subjected to ±8kv contact discharge for 1000 pulses. Discharges are timed at 1 second intervals and all 1000 strikes are completed in one continuous test

run. The part is then subjected to standard production test to verify that all of the tested parameters are within spec afterh the 1000 strkes.

Electrical Schematic

= 100

Ω differential

matched characteristic

impedance

Out_2+

Out_2-

Out_3+

Out_3-

Out_4+

Out_4-

Out_1+

Out_1-

In_1+

In_1-

In_2+

In_2-

In_3+

In_3-

In_4+

In_4-

Gnd

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CM1234 Datasheet(PDF) 1 Page - California Micro Devices Corp

CM1234 Datasheet(HTML) 1 Page - California Micro Devices Corp

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