4-channel emi filter array with esd protection cm1425 ?2010 scillc. all rights reserved. publication order number: april 2010 rev. 2 cm1425/d features ? four channels of emi filtering with esd protection ? pin compatible with cmd?s csprc032a ? greater than 30db attenuation over the 800mhz to 3ghz frequency range ? 15kv esd protection (iec 61000-4-2, contact discharge) ? 30kv esd protection (hbm) ? 9-bump, 2.470mm x 0.970mm footprint chip scale package (csp) ? available with optiguard ? coating for improved reliability ? lead-free versions available applications ? filtering for antenna and keypad data lines ? i/o port protection for mobile handsets, notebook computers, pdas etc. ? emi filtering for data ports in cell phones, pdas or notebook computers. ? emi filtering for lcd and chip-to-chip data lines in mobile electronic devices that use flexible pcb interconnections product description the cm1425 is an emi filter array with esd protection, which integrates 4 pi filters (c-r-c). the cm1425 has component values of 20pf-100 -20pf. the parts include esd protection 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 diodes connected to the filter ports safely dissipate esd strikes of 15kv, well beyond the maximum requirement of the iec 61000-4-2 international standard. using the mi l-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 portable electronics (e.g. mobile handsets, pdas, notebook computers) because of its small package and easy- to-use pin assignments. in particular, the cm1425 is ideal for emi filtering and protecting data lines from esd in wireless handsets. all cm1425 devices are optionally available with optiguard ? coating which results in improved reliability at assembly. these devices are also available with standard and lead-free finishing. the cm1425 is housed in a space-saving, low-profile, chip-scale package and is fabricated with the centurion ? processes.
cm1425 rev. 2 | page 2 of 9 | www.onsemi.com block diagram
cm1425 rev. 2 | page 3 of 9 | www.onsemi.com pin descriptions pin(s) name description pin(s) name description a1 filter+esd1 filter channel 1 b1 filter+esd1 filter channel 1 a2 filter+esd2 filter channel 2 b2 filter+esd2 filter channel 2 a4 filter+esd3 filter channel 3 b4 filter+esd3 filter channel 3 a5 filter+esd4 filter channel 4 b5 filter+esd4 filter channel 4 b3 gnd device ground ordering information part numbering information standard finish lead-free finish 2 no coating optiguard ? coated -no coating optiguard ? coated bumps pkg ordering part number 1 part marking ordering part number 1 part marking ordering part number 1 part marking ordering part number 1 part marking 9 csp CM1425-01CS n251 cm1425-03cs n253 cm1425-01cp n251 cm1425-03cp n253 note 1: parts are shipped in tape & reel form unless otherwise specified. note 2: lead-free devices are specified by using a " + " character for the top side orientation mark. specifications absolute maximum ratings parameter rating units storage temperature range -65 to +150 c power rating per resistor 100 mw package power rating 300 mw standard operating conditions parameter rating units operating temperature range -40 to +85 c
cm1425 rev. 2 | page 4 of 9 | www.onsemi.com electrical operating characteristics 1 symbol parameter conditions min typ max units r resistance 80 100 120 c capacitance at 2.5v dc, 1mhz, 30mv ac 16 20 24 pf v diode diode standoff voltage i diode = 10 a 6.0 v i leak diode leakage current (reverse bias) v diode = + 3.3v 100 300 na v sig signal voltage positive clamp negative clamp i load = 10ma i load = -10ma 5.6 -1.5 6.8 -0.8 9.0 -0.4 v v v esd in-system esd withstand voltage a) human body model, mil-std-883, method 3015 b) contact discharge per iec 61000-4- 2 level 4 note 2 30 15 kv kv r dyn dynamic resistance positive negative 1.5 0.9 f c cut-off frequency z source =50 , z load =50 r = 100 , c = 20pf 86 mhz note 1: t a =25 c unless otherwise specified. note 2: esd applied to input and output pins with respect to gnd, one at a time.
cm1425 rev. 2 | page 5 of 9 | www.onsemi.com performance information . figure 1. cm1425 filter typical measured frequency response figure 2. filter capacitance vs. input voltage over temperature (normalized to capacitance at 2.5vdc and 25c)
cm1425 rev. 2 | page 6 of 9 | www.onsemi.com application information parameter value pad size on pcb 0.240mm pad shape round pad definition non-solder mask defined pads solder mask opening 0.290mm round solder stencil thickness 0.125mm - 0.150mm solder stencil aperture opening (laser cut, 5% tapered walls) 0.300mm round solder flux ratio 50/50 by volume solder paste type no clean pad protective finish osp (entek cu plus 106a) tolerance ? edge to corner ball + 50 m solder ball side coplanarity + 20 m maximum dwell time above liquidous 60 seconds maximum soldering temperature for lead-free devices using a lead-free solder paste 260c so ld er mask openi ng 0.29 0mm dia. no n-s old er mask de fin ed pad 0.24 0mm dia. sol der stenci l openi ng 0.30 0mm dia. figure 5. recommended non-solder mask defined pad illustration figure 6. lead-free (snagcu) solder ball reflow profile
cm1425 rev. 2 | page 7 of 9 | www.onsemi.com mechanical details cm1425 devices are packaged in a custom a 9-bump cust om chip scale packages (csp) and available with optional optiguard tm coating. dimensions are presented below. package dimensions package custom csp bumps 9 millimeters inches dim min nom max min nom max a1 0.925 0.970 1.015 0.036 4 0.0382 0.0400 a2 2.425 2.470 2.515 0.095 5 0.0972 0.0990 b1 0.495 0.500 0.505 0.019 5 0.0197 0.0199 b2 0.495 0.500 0.505 0.019 5 0.0197 0.0199 c1 0.185 0.235 0.285 0.007 3 0.0093 0.0112 c2 0.185 0.235 0.285 0.007 3 0.0093 0.0112 d1 1 0.562 0.606 0.650 0.022 1 0.0239 0.0256 d2 1 0.356 0.381 0.406 0.014 0 0.0150 0.0160 d3 2 0.575 0.644 0.714 0.022 6 0.0254 0.0281 d4 2 0.368 0.419 0.470 0.014 5 0.0165 0.0185 # per tape and reel 3500 pieces controlling dimension: millimeters note 1: applies to uncoated devices only. note 2: applies to optiguard ? (coated) devices only. package dimensions cm1425 9-bump chip scale package
cm1425 rev. 2 | page 8 of 9 | www.onsemi.com mechanical details (cont?d) csp tape and reel specifications part number pkg. size (mm) pocket size (mm) b 0 x a 0 x k 0 tape width w reel dia. qty per reel p 0 p 1 cm1425-01 2.470 x 0.970 x 0.606 2.62 x 1.12 x 0.762 8mm 178mm (7") 3500 4mm 4mm cm1425-03 2.470 x 0.970 x 0.644 2.62 x 1.12 x 0.762 8mm 178mm (7") 3500 4mm 4mm figure 6. tape and reel mechanical data
cm1425 rev. 2 | page 9 of 9 | www.onsemi.com on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to make changes witho ut further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any parti cular purpose, nor does scillc assume any liability arising out of the application or use of any pr oduct or circuit, and specific ally disclaims any and all liability, including without li mitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or spec ifications can and do vary in different applications and actu al performance may vary over time. all operating parameters, including ?typicals? must be validated for each custom er application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not de signed, intended, or authorized for use as components in systems intended for surg ical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers , employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reason able attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303-675-2175 or 800-344-3860 toll free usa/canada fax : 303-675-2176 or 800-344-3867 toll free usa/canada email : orderlit@onsemi.com n. american technical support : 800-282-9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81-3-5773-3850 on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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