? 2008 california micro devices corp. all rights reserved. 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com 1 issue b ? 04/30/08 cm1423 secure digital (sd) card emi fi lter array with esd protection features ? provides emi filtering and esd protection for an sd port on a mobile device ? six channels of emi filtering with esd protection ? four channels of esd protection ? 15kv esd protection on all i/o pins (iec 61000- 4-2, contact discharge) ? 30kv esd protection (hbm) ? better than 25db of attenuation at 1ghz for 12pf- 100 -12pf filter configuration ? integrates 34 components into small form factor csp solution ? 20-bump, 4.000mm x 1.458mm footprint chip scale package ? chip scale package features extremely low lead inductance for optimum filter and esd performance ? available with optiguard ? coating for improved reliability at assembly ? rohs compliant (lead-free) finishing applications ? secure digital (sd) card data lines in mobile handsets ? sd card interface protection for other mobile elec- tronics such as mp3 players, pdas and digital cameras ? 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 california micro devices's cm1423 is an emi filter array with esd protection, wh ich integrates six pi- fil- ters (c-r-c) and four channels of esd protection. the cm1423?s filters have component values of 12pf- 100 -12pf. the part includes esd protection diodes on every pin, which provide a very high level of protec- tion for sensitive electronic components that may be subjected to electrostatic discharge (esd). all the esd diodes safely dissipate esd strikes of 15kv, beyond the maximum requirement of the iec 61000-4-2 inter- national standard. using the mil-std-883 (method 3015) specification for human body model (hbm) esd, the pins are protect ed for contact discharges at greater than 30kv. this device is particularly well-suited for portable elec- tronics (e.g. mobile handsets, pdas, notebook comput- ers) because of its small package and easy-to-use pin assignments. in particular, the cm1423 is ideal for emi filtering and protecting data lines from esd for the secure digital (sd) card in terface slot in mobile hand- sets. the cm1423 is an all-inclusive solution for the sd card interface since its emi filters provide the proper cut-off frequency to attenuate unwanted signals. the cm1423 is manufactured in a space-saving, low- profile, chip-scale package, and is optionally available with optiguard ? coating for improved reliability. it is available with rohs comp liant lead-free finishing. electrical schematic 100 12pf 12pf clk a5 c5 vdd* a4 c4 vss1* 100 12pf 12pf dat 0 a7 c7 100 12pf 12pf dat 1 a8 c8 100 12pf 12pf dat 2 a1 c1 100 12pf 12pf dat 3 a2 c2 100 12pf 12pf cmd a3 c3 vss2* a6 c6 dat 2 dat 3 cmd clk dat 0 dat 1 esd* * in a typical sd card application, a4 (a6) is connected to c4 (c6). see example given in applications section.
? 2008 california micro devices corp. all rights reserved. 2 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com issue b ? 04/30/08 cm1423 ordering information note 1: parts are shipped in tape & reel form unless otherwise specified. clk e s d gnd clk v ss 2 a6 a5 orient a tion m a rking b 3 c6 c5 dat0 dat1 gnd dat0 dat1 a 8 a7 b4 c 8 c7 cmd v ss 1 gnd cmd vdd a4 a 3 b2 c4 c 3 dat2 dat 3 gnd dat2 dat 3 a2 a1 b1 c2 c1 a1 s d gnd clk v ss 2 a6 a5 orient a tion m a rking b 3 c6 c5 dat0 dat1 gnd dat0 dat1 a 8 a7 b4 c 8 c7 cmd v ss 1 gnd cmd vdd a4 a 3 b2 c4 c 3 dat2 dat 3 gnd dat2 dat 3 a2 a1 b1 c2 c1 a1 33 4 3 267 8 5 1 c b a orient a tion m a rking n2 3 1 4 3 267 8 5 1 c b a orient a tion m a rking package / pinout diagrams notes: bottom view (bumps up view) top view (bumps down view) 1) these drawings are not to scale. cm1423-01 chip scale package (non-coated) cm1423-03 chip scale package ( optiguard ? coated) pin descriptions pin(s) name description pin(s) name description a1 dat2 data2 filter+esd channel, system side c1 dat2 data2 filter+ esd channel, sd card side a2 dat3 data3 filter+esd channel, system side c2 dat3 data3 filter+ esd channel, sd card side a3 cmd cmd signal filter+esd channel, system side c3 cmd cmd signal filter+esd channel, sd card side a4 vss1 esd-only channel, supply voltage ground c4 vdd esd-only channel, supply voltage a5 clk clock filter + esd channel c5 clk clock filter + esd channel a6 esd esd-only channel c6 vss2 esd-only channel, supply voltage ground a7 dat0 data0 filter+ esd channel, system side c7 dat0 data0 filter+ esd channel, sd card side a8 dat1 data1 filter+ esd channel, system side c8 dat1 data1 filter+ esd channel, sd card side b1-b4 gnd device ground part numbering information no coating optiguard tm coated bumps pkg ordering part number 1 part marking ordering part number 1 part marking 20 csp cm1423-01cp n231 CM1423-03CP n233
? 2008 california micro devices corp. all rights reserved. 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com 3 issue b ? 04/30/08 cm1423 specifications 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. note 3: these parameters are guaranteed by design and characterization. absolute maximum ratings parameter rating units storage temperature range -65 to +150 c dc power per resistor 100 mw dc package power rating 500 mw standard operating conditions parameter rating units operating temperature range -40 to +85 c electrical operating characteristics (note 1) symbol parameter conditions min typ max units r resistance 80 100 120 c capacitance at 2.5v dc, 1mhz, 30mv ac 91215pf v diode diode standoff voltage i diode = 10 a6.0v 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 wi thstand voltage a) human body model, mil-std-883, method 3015 b) contact discharge per iec 61000-4-2 level 4 notes 2 and 3 30 15 kv kv r dyn dynamic resistance positive negative 1.6 0.4 f c cut-off frequency z source =50 , z load =50 r = 100 , c = 12pf; note 3 145 mhz
? 2008 california micro devices corp. all rights reserved. 4 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com issue b ? 04/30/08 cm1423 performance information typical filter performance (nominal conditions unless specified otherwise, 50 ohm environment) figure 1. a1-c1 emi filter performance figure 2. a2-c2 emi filter performance
? 2008 california micro devices corp. all rights reserved. 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com 5 issue b ? 04/30/08 cm1423 performance information (cont?d) typical filter performance (nominal conditions unless specified otherwise, 50 ohm environment) figure 3. a3-c3 emi filter performance figure 4. a5-c5 emi filter performance
? 2008 california micro devices corp. all rights reserved. 6 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com issue b ? 04/30/08 cm1423 performance information (cont?d) typical filter performance (nominal conditions unless specified otherwise, 50 ohm environment) figure 5. a7-c7 emi filter performance figure 6. a8-c8 emi filter performance
? 2008 california micro devices corp. all rights reserved. 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com 7 issue b ? 04/30/08 cm1423 performance information figure 7. filter capacitance vs. input voltage over temperature (normalized to capacitance at 2.5vdc and 25c)
? 2008 california micro devices corp. all rights reserved. 8 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com issue b ? 04/30/08 cm1423 application information figure 8. typical sd card application 100k filter+esd a1 c1 dat2 100k filter+esd a2 c2 cd/dat3 10k filter+esd a3 c3 cmd 100k filter+esd a5 c5 clk 100k filter+esd a7 c7 dat0 100k filter+esd a8 c8 dat1 a4 c4 vdd a6 c6 vss2 9 = dat2 1 = cd/dat3 2 = cmd 3 = vss1 (gnd) 4 = vdd 5 = clk 6 = vss2 (gnd) 7 = dat0 8 = dat1 sd memory card (top view, card contacts are on the bottom side) note: 100k and 10k pull-up resistors are not included in cm1423. designer will need to determine the appropriate pull-up resistor value for each design. cm1423 dat2 dat3 cmd clk dat0 dat1 vss1 esd connector side chipset side
? 2008 california micro devices corp. all rights reserved. 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com 9 issue b ? 04/30/08 cm1423 application information (cont?d) refer to application note ap-217, "the chip scale package", for a detailed description of chip scale packages offered by california micro devices. figure 9. recommended non-solder mask defined pad illustration figure 10. lead-free (snagcu) solder ball reflow profile printed circuit bo ard recommendations parameter value pad size on pcb 0.275mm pad shape round pad definition non-solder mask defined pads solder mask opening 0.325mm round solder stencil thickness 0.125mm - 0.150mm solder stencil aperture opening (las er cut, 5% tapered walls) 0.330mm 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 (183c) 60 seconds maximum soldering temperature 260c solder mask opening 0.325mm dia. non-solder mask defined pad 0.275mm dia. solder stencil opening 0.330mm dia. 200 250 150 100 50 0 1:00.0 2:00.0 3:00.0 4:00.0 time (minutes) temperature (c)
? 2008 california micro devices corp. all rights reserved. 10 490 n. mccarthy blvd., milpitas, ca 95035-5112 tel: 408.263.3214 fax: 408.263.7846 www.cmd.com issue b ? 04/30/08 cm1423 mechanical details cm1423mechanical specifications the package dimensions for the cm1423-01 and the cm1423-03 are presented below. package dimensions for cm1423 chip scale package csp tape and reel specifications figure 11. tape and reel mechanical data package dimensions package custom csp bumps 20 dim millimeters inches min nom max min nom max a1 3.955 4.000 4.045 0.1557 0.1575 0.1593 a2 1.413 1.458 1.503 0.0556 0.0574 0.0592 b1 0.495 0.500 0.505 0.0195 0.0197 0.0199 b2 0.245 0.250 0.255 0.0096 0.0098 0.0100 b3 0.430 0.435 0.440 0.0169 0.0171 0.0173 b4 0.430 0.435 0.440 0.0169 0.0171 0.0173 c1 0.200 0.250 0.300 0.0079 0.0098 0.0118 c2 0.244 0.294 0.344 0.0096 0.0116 0.0135 d1 0.562 0.606 0.650 0.0221 0.0239 0.0256 d2 0.356 0.381 0.406 0.0140 0.0150 0.0160 d3 0.575 0.644 0.714 0.0226 0.0254 0.0281 d4 0.368 0.419 0.470 0.0145 0.0165 0.0185 # per tape and reel 3500 pieces controlling dimension: millimeters mechanical package diagrams a c 3456 c1 b1 a1 b3 c2 dimensions in millimeters d3 d4 a2 bottom view side view 12 b2 b4 78 b a 0.30 dia. solder bumps 96.8/2.6/0.6 sn/ag/cu (lead-free) optiguard tm coating a c 3456 c1 b1 a1 b3 c2 d1 d2 a2 bottom view side view 12 b2 b4 78 b a 0.30 dia. solder bumps 96.8/2.6/0.6 sn/ag/cu (lead-free) cm1423-01 (non-coated csp) cm1423-03 ( optiguard ? -coated csp) part number chip 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 cm1423-01 4.00 x 1.46 x 0.606 4.11 x 1. 57 x 0.76 12mm 330mm (13") 3500 4mm 4mm cm1423-03 4.00 x 1.46 x 0.644 4.11 x 1. 57 x 0.76 12mm 330mm (13") 3500 4mm 4mm to p for tape feeder reference cover ta p e p 1 only including draft. concentric around b. k o embossment user direction of feed 0.2 mm p o center lines of cavity w 10 pitches cumulative tolerance on tape a o b o +++
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