PraetorianTM L-C EMI Filter with ESD Protection for Headset Speakers CM1418 Features • • • • • • • Two channels of EMI filtering ±30kV ESD protection (IEC 61000-4-2, contact discharge) ±30kV ESD protection (HBM) OptiGuard™ Coating for improved reliability at assembly Greater than 35dB of attenuation at 1GHz 6-bump, 1.720mm x 1.220mm footprint Chip Scale Package (CSP) 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 CM1418 is an L-C EMI filter array with ESD protection that integrates two Pi-filters (C-L-C) for a headset speaker. The CM1418 has component values of 117pF/3.0nH/117pF. The parts include ESD protection diodes on all input/output pins, and provide a very high level of protection for sensitive electronic components against possible electrostatic discharge (ESD). The ESD diodes connected to the filter ports safely dissipate ESD strikes of ±30kV, which is beyond the maximum requirement of the IEC610004-2 international standard. In accordance with MILSTD-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 format and easy-to-use pin assignments. In particular, the CM1418 is ideal for EMI filtering and protecting speaker output lines of the headset speaker from ESD in mobile handsets. Most speakers have an impedance of 8Ω. However, to maximize the power output, the resistance of an EMI filter needs to be as low as possible. The CM1418 addresses this by using a C-L-C based EMI filter with an inductor having less than 0.35Ω of resistance. The CM1418 comes with OptiGuard™ coating resulting in improved reliability at assembly. The CM1418 is housed in a space saving, low profile Chip Scale Package with RoHS-compliant, lead-free finishing. ©2010 SCILLC. All rights reserved. April 2010 Rev. 3 Publication Order Number: CM1418/D CM1418 Block Diagram Rev. 3 | Page 2 of 10 | www.onsemi.com CM1418 PIN DESCRIPTIONS PIN NAME DESCRIPTION A1 Filter #1 Filter #1 Input A2 GND Device Ground A3 Filter #1 Filter #1 Input B1 Filter #2 Filter #2 Input B2 GND Device Ground B3 Filter #2 Filter #2 Input Ordering Information PART NUMBERING INFORMATION Lead-free Finish Pins Package Ordering Part Number1 Part Marking 6 CSP CM1418-02CP CG Note 1: Parts are shipped in Tape and Reel form unless otherwise specified. Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS -65 to +150 °C DC Current per Inductor 500 mA DC Package Power Rating 0.5 W RATING UNITS -40 to +85 °C Storage Temperature Range STANDARD OPERATING CONDITIONS PARAMETER Operating Temperature Range Rev. 3 | Page 3 of 10 | www.onsemi.com CM1418 ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS L Inductance 3.0 R DC Channel Resistance 0.28 0.35 Ω CTOT nH Total Channel Capacitance 2.5V dc, 1MHz, 30mV ac, 187 234 281 pF C1 Capacitance C1 2.5V dc, 1MHz, 30mV ac 93 117 140 pF VST Stand-off Voltage I = 10μA 6.0 ILEAK Diode Leakage Current VIN = 3.3V 0.1 1.0 μA VSIG Signal Clamp Voltage Positive Clamp Negative Clamp ILOAD = 10mA ILOAD = -10mA 6.8 -6.8 9.0 -5.6 V V VESD RDYN fC 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 Dynamic Resistance Positive Negative Cut-off frequency ZSOURCE = 50Ω, ZLOAD = 50Ω 5.6 -9.0 V L = 3nH, C = 117pF Note 1: TA=25°C unless otherwise specified. Note 2: ESD applied to input and output pins with respect to GND, one at a time. Rev. 3 | Page 4 of 10 | www.onsemi.com ±30 kV ±30 kV 0.95 0.90 Ω Ω 22 MHz CM1418 Performance Information Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment) Figure 1. Insertion Loss vs. Frequency (Filter #1 to GND B2) Figure 2. Insertion Loss vs. Frequency (Filter #2 to GND B2) Rev. 3 | Page 5 of 10 | www.onsemi.com CM1418 Figure 3. Typical Diode Capacitance vs. Input Voltage (normalized to 2.5VDC) Rev. 3 | Page 6 of 10 | www.onsemi.com CM1418 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 +50μm Solder Ball Side Coplanarity +20μm Maximum Dwell Time Above Liquidous 60 seconds Maximum Soldering Temperature for Lead-free Devices using a Lead-free Solder Paste Non-Solder Mask Defined Pad 0.240mm DIA. Solder Stencil Opening 0.300mm DIA. Solder Mask Opening 0.290mm DIA. Figure 5. Recommended Non-Solder Mask Defined Pad Illustration Figure 6. Lead-free (SnAgCu) Solder Ball Reflow Profile Rev. 3 | Page 7 of 10 | www.onsemi.com 260°C CM1418 Mechanical Details CM1418 CSP Mechanical Specifications The CM1418 is supplied in 6-bump Chip Scale Package (CSP). Dimensions are presented below. PACKAGE DIMENSIONS Package Custom CSP Bumps 6 Millimeters Inches Dim Min Nom Max Min Nom Max A1 1.175 1.220 1.265 0.0463 0.0480 0.0498 A2 1.675 1.720 1.765 0.0659 0.0677 0.0695 B1 0.495 0.500 0.505 0.0195 0.0197 0.0199 B2 0.495 0.500 0.505 0.0195 0.0197 0.0199 C1 0.310 0.360 0.410 0.0122 0.0142 0.0161 C2 0.310 0.360 0.410 0.0122 0.0142 0.0161 D1 0.575 0.644 0.714 0.0226 0.0254 0.0281 D2 0.368 0.419 0.470 0.0145 0.0165 0.0185 # per tape and reel Package Dimensions for CM1418-02CP 6-bump Chip Scale Package 3500 pieces Controlling dimension: millimeters Rev. 3 | Page 8 of 10 | www.onsemi.com CM1418 Mechanical Details (cont’d) CSP Tape and Reel Specifications PART NUMBER CHIP SIZE (mm) CM1418-02CP 1.72 X 1.22 X 0.64 POCKET SIZE (mm) TAPE WIDTH B0 X A0 X K0 W 1.78 x 1.38 x 0.76 + 8mm + + Figure 6. Tape and Reel Mechanical Data Rev. 3 | Page 9 of 10 | www.onsemi.com REEL DIA. QTY PER REEL P0 P1 178mm (7") 3500 4mm 4mm CM1418 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. 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