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CM1423 Secure Digital (SD) Card EMI Filter 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 610004-2, contact discharge) 30kV ESD protection (HBM) Better than 25dB of attenuation at 1GHz for 12pF100 -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 OptiGuardTM coated version for improved reliability at assembly Lead-free version available
Product Description
California Micro Devices's CM1423 is an EMI filter array with ESD protection, which integrates six Pi- filters (C-R-C) and four channels of ESD protection. The CM1423's filters have component values of 12pF100-12pF. The part includes 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). All the ESD diodes are designed and characterized to safely dissipate ESD strikes of 15kV, beyond the maximum requirement of the IEC 61000-4-2 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 30kV. This device is particularly well suited for portable electronics (e.g. mobile handsets, PDAs, notebook computers) because of its small package format and easyto-use pin assignments. In particular, the CM1423 is ideal for EMI filtering and protecting data lines from ESD for the Secure Digital (SD) Card interface slot in mobile handsets. 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, lowprofile, chip-scale package, and is optionally available with OptiGuardTM coating for improved reliability. It is also available with lead-free finishing.
* *
Applications
* * * * Secure Digital (SD) Card data lines in mobile handsets SD Card interface protection for other mobile electronics 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.
Electrical Schematic
DAT 2
A1 12pF 100 C1 12pF DAT 2
CLK
A5 12pF
100
C5 12pF
CLK
VSS1*
A4
C4
VDD*
DAT 3
A2 12pF
100
C2 12pF
DAT 3
DAT 0
A7 12pF
100
C7 12pF
DAT 0
ESD*
A6
C6
VSS2*
CMD
A3 12pF
100
C3 12pF
CMD
DAT 1
A8 12pF
100
C8 12pF
DAT 1
* In a typical SD Card application, A4 (A6) is connected to C4 (C6). See example given in applications section.
(c) 2005 California Micro Devices Corp. All rights reserved. 01/12/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
1
CM1423
PACKAGE / PINOUT DIAGRAMS
(Bumps Down View)
Orientation Marking (see note 2)
TOP VIEW
4 5 6
BOTTOM VIEW
(Bumps Up View)
VDD CLK VSS2
1 A B C
2
3
7
8
DAT2 DAT3 CMD DAT0 DAT1
C1
GND
C2 B1
C3
GND
C4 B2
C5
GND
C6 B3
C7
GND
C8 B4
N231
Orientation Marking A1
A1 DAT2
A2
DAT3
A3
CMD
A4
VSS1
A5
CLK
A6
ESD
A7
DAT0
A8
DAT1
CM1423-01 Chip Scale Package (non-coated)
Orientation Marking (see note 2)
1 A B C
2
3
4
5
6
7
8
DAT2 DAT3 CMD VDD CLK VSS2 DAT0 DAT1
C1
C2
GND
C3
GND
C4 B2
C5
GND
C6 B3
C7
GND
C8 B4
N233
Orientation Marking A1
A1 DAT2
B1 A2
DAT3
A3
CMD
A4
VSS1
A5
CLK
A6
ESD
A7
DAT0
A8
DAT1
CM1423-03 Chip Scale Package (OptiGuardTM coated) Notes: 1) These drawings are not to scale. 2) Lead-free devices are specified by using a "+" character for the top side orientation mark.
PIN DESCRIPTIONS
PIN(s) A1 A2 A3 A4 A5 A6 A7 A8 B1-B4 NAME DAT2 DAT3 CMD VSS1 CLK ESD DAT0 DAT1 GND DESCRIPTION DATA2 Filter+ESD Channel, System Side DATA3 Filter+ESD Channel, System Side CMD Signal Filter+ESD Channel, System Side ESD-only Channel, Supply Voltage Ground Clock Filter + ESD Channel ESD-only Channel DATA0 Filter+ ESD Channel, System Side DATA1 Filter+ ESD Channel, System Side Device Ground PIN(s) C1 C2 C3 C4 C5 C6 C7 C8 NAME DAT2 DAT3 CMD VDD CLK VSS2 DAT0 DAT1 DESCRIPTION DATA2 Filter+ ESD Channel, SD Card Side DATA3 Filter+ ESD Channel, SD Card Side CMD Signal Filter+ESD Channel, SD Card Side ESD-only Channel, Supply Voltage Clock Filter + ESD Channel Supply Voltage Ground DATA0 Filter+ ESD Channel, SD Card Side DATA1 Filter+ ESD Channel, SD Card Side
Ordering Information
PART NUMBERING INFORMATION
Standard Finish No Coating Ordering Part Bumps 20 PKG CSP Number1 CM1423-01CS Part Marking N231 OptiguardTM Coated Ordering Part Number1 CM1423-03CS Part Marking N233 Lead-free Finish2 No Coating Ordering Part Number1 CM1423-01CP Part Marking N231 OptiguardTM Coated Ordering Part Number1 CM1423-03CP Part Marking N233
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.
(c) 2005 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
01/12/05
CM1423
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER Storage Temperature Range DC Power per Resistor DC Package Power Rating RATING -65 to +150 100 500 UNITS C mW mW
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature Range RATING -40 to +85 UNITS C
ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1)
SYMBOL R C VDIODE ILEAK VSIG PARAMETER Resistance Capacitance Diode Standoff Voltage Diode Leakage Current (reverse bias) Signal Voltage Positive Clamp Negative Clamp In-system ESD Withstand Voltage a) Human Body Model, MIL-STD-883, Method 3015 b) Contact Discharge per IEC 61000-4-2 Level 4 Clamping Voltage during ESD Discharge MIL-STD-883 (Method 3015), 8kV Positive Transients Negative Transients Cut-off Frequency ZSOURCE=50, ZLOAD=50 At 2.5V DC, 1MHz, 30mV AC IDIODE = 10A VDIODE = 3.3V ILOAD = 10mA ILOAD = -10mA Notes 2,4 and 5 30 15 Notes 2,3,4 and 5 +12 -7 R = 100, C = 12pF; Note 5 145 V V MHz kV kV 5.6 -1.5 CONDITIONS MIN 80 9 5.5 100 6.8 -0.8 9.0 -0.4 TYP 100 12 MAX 120 15 UNITS pF V nA V V
VESD
VCL
fC
Note 1: TA=25C unless otherwise specified. Note 2: ESD applied to input and output pins with respect to GND, one at a time. Note 3: Clamping voltage is measured at the opposite side of the EMI filter to the ESD pin. For example, if ESD is applied to Pin A1, then clamping voltage is measured at Pin C1. Note 4: Unused pins are left open Note 5: These parameters are guaranteed by design and characterization.
(c) 2005 California Micro Devices Corp. All rights reserved. 01/12/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
3
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
(c) 2005 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
01/12/05
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
(c) 2005 California Micro Devices Corp. All rights reserved. 01/12/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
5
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
(c) 2005 California Micro Devices Corp. All rights reserved.
6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
01/12/05
CM1423
Performance Information
Figure 7. Filter Capacitance vs. Input Voltage over Temperature (normalized to capacitance at 2.5VDC and 25C)
(c) 2005 California Micro Devices Corp. All rights reserved. 01/12/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
7
CM1423
Application Information
CHIPSET SIDE DAT2
100k A1
CM1423
FILTER+ESD C1
CONNECTOR SIDE DAT2
100k DAT3 10k CMD A3 FILTER+ESD C3 CMD A2 FILTER+ESD C2 CD/DAT3
SD Memory Card
(top view, card contacts are on the bottom side)
VSS1
A4
C4
VDD
100k CLK A5 FILTER+ESD C5 CLK
ESD
A6
C6
VSS2
9 = DAT2 1 = CD/DAT3 2 = CMD 3 = VSS1 (GND) 4 = VDD 5 = CLK 6 = VSS2 (GND) 7 = DAT0 8 = DAT1
100k DAT0 100k DAT1 A8 FILTER+ESD C8 DAT1 A7 FILTER+ESD C7 DAT0
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.
Figure 8. Typical SD Card Application
(c) 2005 California Micro Devices Corp. All rights reserved.
8
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
01/12/05
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.
PRINTED CIRCUIT BOARD RECOMMENDATIONS
PARAMETER Pad Size on PCB Pad Shape Pad Definition Solder Mask Opening Solder Stencil Thickness Solder Stencil Aperture Opening (laser cut, 5% tapered walls) Solder Flux Ratio Solder Paste Type Pad Protective Finish Tolerance -- Edge To Corner Ball Solder Ball Side Coplanarity Maximum Dwell Time Above Liquidous Soldering Maximum Temperature VALUE 0.275mm Round Non-Solder Mask defined pads 0.325mm Round 0.125mm - 0.150mm 0.330mm Round 50/50 by volume No Clean OSP (Entek Cu Plus 106A) +50m +20m 60 seconds 260C
Non-Solder Mask Defined Pad 0.275mm DIA. Solder Stencil Opening 0.330mm DIA. Solder Mask Opening 0.325mm DIA.
Figure 9. Recommended Non-Solder Mask Defined Pad Illustration
250
Temperature (C)
200 150 100 50 0 1:00.0 2:00.0 3:00.0 Time (minutes) 4:00.0
Figure 10. Eutectic (SnPb) Solder Ball Reflow Profile
(c) 2005 California Micro Devices Corp. All rights reserved. 01/12/05
Figure 11. Lead-free (SnAgCu) Solder Ball Reflow Profile
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
9
CM1423
Mechanical Details
CM1423Mechanical Specifications The package dimensions for the CM1423-01 and the CM1423-03 are presented below. Mechanical Package Diagrams CM1423-01 (non-coated CSP)
BOTTOM VIEW
A1 C1 B1 C B2 B4 B3
PACKAGE DIMENSIONS
Package Bumps Dim A1 A2 B1 B2 B3 B4 C1 C2 D1 D2 D3 D4 Millimeters Min Nom Max Min Custom CSP 20 Inches Nom Max
SIDE VIEW
B A 1 A 2 3 4 5 6 7 8
A2
C2
3.955 4.000 4.045 0.1557 0.1575 0.1593 1.413 1.458 1.503 0.0556 0.0574 0.0592 0.495 0.500 0.505 0.0195 0.0197 0.0199 0.245 0.250 0.255 0.0096 0.0098 0.0100 0.430 0.435 0.440 0.0169 0.0171 0.0173 0.430 0.435 0.440 0.0169 0.0171 0.0173 0.200 0.250 0.300 0.0079 0.0098 0.0118 0.244 0.294 0.344 0.0096 0.0116 0.0135 0.561 0.605 0.649 0.0221 0.0238 0.0255 0.355 0.380 0.405 0.0140 0.0150 0.0159 0.600 0.670 0.739 0.0236 0.0264 0.0291 0.394 0.445 0.495 0.0155 0.0175 0.0195 3500 pieces
C B A C1
0.30 DIA. 63/37 Sn/Pb (Eutectic) or 95.5/3.8/0.7 Sn/Ag/Cu (Lead-free) SOLDER BUMPS
D1 D2
CM1423-03 (OptiGuardTM-coated CSP)
BOTTOM VIEW
A1 B1 B2 B4 B3 A2 C2
OptiGuardTM Coating
A 1 2 3 4 5 6 7 8 D3 D4
# per tape and reel
0.30 DIA. 63/37 Sn/Pb (Eutectic) or 95.5/3.8/0.7 Sn/Ag/Cu (Lead-free) SOLDER BUMPS
SIDE VIEW
Controlling dimension: millimeters
DIMENSIONS IN MILLIMETERS
Package Dimensions for CM1423 Chip Scale Package CSP Tape and Reel Specifications
PART NUMBER CM1423-01 CM1423-03 CHIP SIZE (mm) 4.00 X 1.46 X 0.60 4.00 X 1.46 X 0.67 POCKET SIZE (mm) B0 X A0 X K0 4.11 X 1.57 X 0.76 4.11 X 1.57 X 0.76 TAPE WIDTH W 12mm 12mm
Po Top Cover Tape
REEL DIAMETER 330mm (13") 330mm (13")
QTY PER REEL 3500 3500
P0 4mm 4mm
P1 4mm 4mm
10 Pitches Cumulative Tolerance On Tape 0.2 mm
Ao W Bo
Ko
For Tape Feeder Reference Only including Draft. Concentric Around B.
Embossment
P1 User Direction of Feed
Center Lines of Cavity
Figure 12. Tape and Reel Mechanical Data
(c) 2005 California Micro Devices Corp. All rights reserved.
10
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com
01/12/05

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