praetorian? l-c emi filter with esd protectionfor headsets/speakers CM1683 ?2010 scillc. all rights reserved. publication order number: may 2010 ? rev. 2 CM1683/d features ? two channels of emi filtering ? 8kv esd protection (i ec 61000-4-2, contact discharge) ? 15kv esd protection (hbm) ? greater than -40db of attenuation at 1ghz ? 8-lead, 2.00mm x 2.00mm, 0.5mm pitch udfn package ? rohs-compliant, lead-free finishing applications ? headset speaker port in mobile handsets ? i/o port protection for mobile handsets, notebook computers, pdas, etc. ? emi filtering for data ports in cell phones, pdas or notebook computers product description the CM1683 is an l-c emi filter array with esd protection, which integrates two pi-filters (c-l-c) for the headset speaker. the CM1683 has component values of 100pf-3nh-100pf. the parts include esd protection diodes on all input/output pins, 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 8kv, beyond t he 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 15kv. this device is particularly well suited for portable electronics (e.g. mobile handsets, pdas, notebook computers) because of its small package format and easy-to-use pin assignments. in particular, the CM1683 is ideal for emi filtering and protecting speaker output lines from esd for the headset speaker in mobile handsets. most speakers have impedance of 8 and in order to maximize the power output, the resistance of an emi filter needs to be as low as possible and the CM1683 addresses this by having a c-l-c based emi filter where the inductor has less than 1 of resistance.
CM1683 rev. 2 | page 2 of 8 | www.onsemi.com electrical schematic note:this drawing is not to scale. 5 6 7 8
CM1683 rev. 2 | page 3 of 8 | www.onsemi.com pin descriptions pin name description 1 filter #1 filter #1 2 nc no connect 3 nc no connect 4 filter #2 filter #2 5 filter #2 filter #2 6 nc no connect 7 nc no connect 8 filter #1 filter #1 dap gnd ground ordering information part numbering information lead-free finish pins package ordering part number 1 part marking 8 udfn CM1683-02de p83 note 1: parts are shipped in tape & reel form unless otherwise specified.
CM1683 rev. 2 | page 4 of 8 | www.onsemi.com specifications absolute maximum ratings parameter rating units storage temperature range ?65 to +150 c dc current per inductor 30 ma dc package power rating 0.5 w standard operating conditions parameter rating units operating temperature range ?40 to +85 c
CM1683 rev. 2 | page 5 of 8 | www.onsemi.com electrical operating characteristics (note 1) symbol parameter conditions min typ max units l inductance 3.0 nh r dc channel resistance 0.75 1 a i leak diode leakage current v in =-5v -1.0 -0.1 a v sig signal clamp voltage positive clamp negative clamp i load = 10ma i load = ?10ma 5 ?15 7 ?10 15 ?5 v v v esd in-system esd withstand voltage human body model, mil-std-883, method 3015 contact discharge per iec 61000- 4-2 level 4 note 2 15 8 kv kv f c cut-off frequency z source = 50 , z load = 50 l = 3nh, c = 100pf 31 mhz note 1: t a = 25c unless otherwise specified. note 2: esd applied to input and output pins with respect to gnd, one at a time.
CM1683 rev. 2 | page 6 of 8 | www.onsemi.com performance information typical filter performance (nominal conditions unless specified otherwise, 50 ohm environment) figure 1. insertion loss vs. frequency (filter #1 to gnd) figure 2. insertion loss vs. frequency (filter #2 to gnd)
CM1683 rev. 2 | page 7 of 8 | www.onsemi.com mechanical details udfn-08 mechanical specifications, 0.5mm dimensions for the CM1683 supplied in a 2mmx2mm, 8- lead, 0.5mm pitch udfn package are presented below. package dimensions package udfn jedec no. mo-229c leads 8 millimeters inches dim. min nom max min nom max a 0.45 0.50 0.55 0.018 0.020 0.022 a1 0.00 0.02 0.05 0.000 0.001 0.002 a3 0.127 ref 0.005 ref b 0.20 0.25 0.30 0.008 0.010 0.012 d 1.90 2.00 2.10 0.075 0.079 0.083 d2 1.50 1.60 1.70 0.059 0.063 0.067 e 1.90 2.00 2.10 0.075 0.079 0.083 e2 0.80 0.90 1.00 0.031 0.035 0.039 e 0.50 bsc 0.020 bsc k 0.20 0.008 l 0.20 0.30 0.40 0.008 0.012 0.016 # per tape and reel 3000 pieces controlling dimension: millimeters this package is compliant with jedec standard mo-229c with the exception of the "d", "d2", "e", "e2", "k" and "l" dimensions as called out in the table above. dimensions for 8-lead, 0.5mm pitch udfn package
CM1683 rev. 2 | page 8 of 8 | 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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