praetorian iii? emi filter for t-flash/microsd interfaces CM1624 ?2010 scillc. all rights reserved. publication order number: may 2010 ? rev. 2 CM1624/d features ? bidirectional emi/rfi filtering and line termination with integrated esd protection ? provides esd protection to iec61000-4-2: ? 15kv contact discharge ? tvs working voltage: 5v ? termination resistors: 40 ? pull-up resistors: 25k ? typical capacitance per line: 12pf (v in = 2.5v) ? protection and termination for six lines + vcc ? solid-state technology applications ? t-flash / microsd interfaces ? mmc interfaces ? cdma, gsm, 3g cell phones mechanical characteristics ? 0.40mm, udfn 16-pin package ? rohs/weee compliance, lead-free finish ? nominal dimensions: 3.30 x 1.35 x 0.50mm ? pitch: 0.4mm ? pin-lead finish: nipd
CM1624 rev. 2 | page 2 of 10 | www.onsemi.com description the CM1624 is a combination emi filter and line term ination device with integrated tvs diodes for use on multimedia card interfaces. this stat e-of-the-art device utilizes solid-state, silicon-avalanche technology for superior clamping performance and dc electrical characteristics. the CM1624 has been optimized for protection of t-flash/microsd interfaces in cellular phones and other portable electronics. the CM1624 consists of six circuits that includes seri es impedance matching resi stors and pull-up resistors as required by the sd specification. tvs diodes are in cluded on each line for esd protection. an additional tvs diode connection is included for protection of the volt age (vcc) bus. termination resistor value of 40 is provided on the sddata0, sddata1, sdda ta2, sddata3, cmd, and clk lines. pull-up resistors of 25k are included on the sddata0, sddata1, sd data2, sddata3 and cmd lines, as well. these may be configured for devices operating in sd or spi mode. the tvs diodes provide effective suppression of esd voltages in excess of 15kv (conta ct discharge) per iec 61000-4-2, level 4. the CM1624 is in a 16-pin, rohs/weee compliant, ud fn 16-pin package. it measures 3.30 x 1.35 x 0.50mm. the leads are spaced at a pitch of 0.4mm and are finished with lead-free nipd. package/pin information sddata1 sddata0 sdclk esd1 esd3 sdcmd sddata3 sddata2 data1 data0 data3 data2 clk esd1 vcc cmd 1 top view
CM1624 rev. 2 | page 3 of 10 | www.onsemi.com pin descriptions pin name description 1 sddata1 data line #1 input/output with pull-up resistor 2 sddata0 data line #0 input/output with pull-up resistor 3 sdclk clock line input/output 4 esd1 single esd 5 esd3 single esd 6 sdcmd command line input/output 7 sddata3 data line #3 input/output with pull-up resistor 8 sddata2 data line #2 input/output with pull-up resistor 9 data2 data line #2 input/output with pull-up resistor 10 data3 data line #3 input/output with pull-up resistor 11 cmd command line input/output 12 vcc power supply esd protection 13 esd1 single esd 14 clk clock line input/output 15 data0 data line #0 input/output with pull-up resistor 16 data1 data line #1 input/output with pull-up resistor gnd pad gnd ground return to shield ordering information part numbering information (note 1) pin package lead-free finish part marking 16 udfn-16 (0.40mm) CM1624 -08de 1624(x) (note 2) note 1: parts are shipped in tape and reel form unless otherwise specified. note 2: (x) = single character date code.
CM1624 rev. 2 | page 4 of 10 | www.onsemi.com specifications absolute maximum ratings* parameter rating units operating temperature range -40 to +85 c storage temperature range -55 to +150 c *exposure to absolute maximum rating conditions fo r extended periods may affect device reliability. electrical operat ing characteristics (see note 1) symbol parameter conditions min typ max units r ch channel resistance (r1 to r6) 34 40 46 l ch channel inductance 20 nh v in = 0v; 1mhz; 30mv rms 16 20 24 pf c capacitance per channel v in = 2.5v; 1mhz; 30mv rms; 12 pf r up pull-up resistance (r7 to r11) 21 25 29 k i leak diode leakage current per channel v in = 3v 0.1 0.5 a v sig signal clamp 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 esd protection - peak discharge voltage at any channel input, in system: a) contact discharge per iec 61000-4-2 standard and b) air discharge per iec 61000-4-2 standard 15 15 kv kv f c cut-off frequency z source = 50 , z load = 50 300 mhz note 1: all parameters specified at t a = 25c unless otherwise noted.
CM1624 rev. 2 | page 5 of 10 | www.onsemi.com performance information typical filter performance (nominal c onditions unless specified otherwise, 50 environment) figure 1. insertion loss vs. frequency (pins 1 and 16) figure 2. insertion loss vs. frequency (pins 2 and 15)
CM1624 rev. 2 | page 6 of 10 | www.onsemi.com performance information (cont?d) typical filter performance (nominal c onditions unless specified otherwise, 50 environment) figure 3. insertion loss vs. frequency (pins 3 and 14) figure 4. insertion loss vs. frequency (pins 6 and 11)
CM1624 rev. 2 | page 7 of 10 | www.onsemi.com performance information (cont?d) typical filter performance (nominal c onditions unless specified otherwise, 50 environment) figure 5. insertion loss vs. frequency (pins 7 and 10) figure 6. insertion loss vs. frequency (pins 8 and 9)
CM1624 rev. 2 | page 8 of 10 | www.onsemi.com mechanical details udfn-16 mechanical specifications, 0.4mm the 16-lead, 0.4mm pitch udfn package dimensions are presented below. package dimensions package udfn jedec no. mo-229c * leads 16 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 0.15 0.20 0.25 0.006 0.008 0.010 d 3.20 3.30 3.40 0.126 0.130 0.134 d2 2.70 2.80 2.90 0.106 0.110 0.114 e 1.25 1.35 1.45 0.049 0.053 0.057 e2 0.30 0.40 0.50 0.012 0.016 0.020 e 0.40 bsc 0.016 bsc k 0.22 ref 0.009 ref l 0.15 0.25 0.35 0.006 0.010 0.014 # 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 16-lead, 0.4mm pitch udfn package
CM1624 rev. 2 | page 9 of 10 | www.onsemi.com tape and reel specifications part number package size (mm) pocket size (mm) b 0 x a 0 x k 0 tape width w reel diameter qty per reel p 0 p 1 CM1624 -08de 3.30 x 1.35 x 0.50 3.50 x 1.55 x 0.70 12mm 178mm (7") 3000 4mm 4mm
CM1624 rev. 2 | page 10 of 10 | 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, repr esentation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability arising out of the app lication or use of any product or circuit, and specifically disclaims any and all li ability, including without limitation special, consequential or incidental dama ges. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in differe nt applications and actual performance may vary over time. all operating parameters, in cluding ?typicals? must be validated for each customer appli cation by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intende d, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any othe r application in which the failure of the scillc product could create a situation wh ere personal injury or death m ay occur. should buyer purchas e or use scillc products for an y such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subs idiaries, affiliates, and distributors harm less against all claims, costs, damages, and expenses, and reasonable 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 allege s that scillc was negligent regardi ng the design or manufacture of the pa rt. 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 ? ?
|
