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PRELIMINARY CM1484 Dual Channel EMI Filter with ESD Protection
Features
* * * * * * * Two channels of EMI filtering with integrated ESD protection Pi-style EMI filters in a capacitor-resistor-capacitor (C-R-C) network 15kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge) 30kV ESD protection on each channel (HBM) Greater than 20dB attenuation (typical) at 1 GHz 5-lead SC70 package Lead-free version available
Product Description
The CM1484 is a 2 channel pi-style EMI filter array with ESD protection, housed in a 5-lead SC-70 package. The CM1484 has component values of 11pF-10011pF per channel. The CM1484 has a cut-off frequency of 220MHz and can be used in applications with data rates up to 80Mbps. The parts include ESD diodes on every pin, which provide a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The ESD protection diodes safely dissipate ESD strikes of 15kV, well beyond the maximum requirement of the IEC61000-4-2 international standard. Using the MILSTD-883 (Method 3015) specification for Human Body Model (HBM) ESD, the pins are protected for contact discharges at greater than 30kV. These devices are particularly well-suited for portable electronics (e.g. wireless handsets, PDAs, notebook computers) because of their small package and easyto-use pin assignments. In particular, the CM1484 is ideal for EMI filtering and protecting data and control lines for the I/O data ports, LCD display and camera interface in mobile handsets. The CM1484 is housed in a small, 5-lead SC70 package and is available with lead-free finishing .
Applications
* * * * * * LCD and Camera data lines 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. Wireless handsets Handheld PCs/PDAs LCD and camera modules
Electrical Schematic
100 FILTER+ESDn* 11pF C GND R C 11pF FILTER+ESDn*
1 of 2 EMI/RFI Filter Channels with Integrated ESD Protection
* See Package/Pinout Diagram for expanded pin information.
(c) 2006 California Micro Devices Corp. All rights reserved. 05/12/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
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PRELIMINARY CM1484
PACKAGE / PINOUT DIAGRAMS
Top View
CH1
1
5
CH1
N84R
GND
2
CH2
3
4
CH2
Notes: 1) These drawings are not to scale.
5-lead SC70
PIN DESCRIPTIONS
NAME 1 2 3 4 5 FILTER1 GND FILTER2 FILTER2 FILTER1 DESCRIPTION Filter + ESD Channel 1 Ground Filter + ESD Channel 2 Filter + ESD Channel 2 Filter + ESD Channel 1
Ordering Information
PART NUMBERING INFORMATION
Lead-free Finish Pins 5 Package SC70 Ordering Part Number1 CM1484-02S7 Part Marking N84R
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
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
(c) 2006 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
05/12/06
PRELIMINARY CM1484
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature Range RATING -40 to +85 UNITS C
ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE1)
SYMBOL R CTOTAL C ILEAK VZ VF VESD PARAMETER Resistance Total Channel Capacitance Capacitance C1 Diode Leakage Current (reverse bias) Zener Breakdown Voltage Positive Clamp Zener Forward Voltage In-system ESD Withstand Voltage a) Human Body Model, MIL-STD-883, Method 3015 b) Contact Discharge per IEC 61000-4-2 Level 4 Dynamic Resistance Positive Negative Cut-off Frequency ZSOURCE=50, ZLOAD=50 Channel R = 100, Channel C = 22pF at 0V reverse bias At 0VDC Reverse Bias, 1MHz, 30mVAC At 0VDC Reverse Bias, 1MHz, 30mVAC VDIODE=+3.0V ILOAD = 1mA IF = 50mA Notes 2 and 3 30 15 2.3 0.9 220 kV kV MHz 6.0 CONDITIONS MIN 90 17.6 8.8 TYP 100 22 11 MAX 110 26.4 13.2 1.0 8.0 1.5 UNITS pF pF A V V
RDYN
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: These parameters are guaranteed by design and characterization.
(c) 2006 California Micro Devices Corp. All rights reserved. 05/12/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
3
PRELIMINARY CM1484
Performance Information
Typical Filter Performance (TA=25C, DC Bias=0V, 50 Ohm Environment)
Figure 1. Insertion Loss vs. Frequency (FILTER1 Input to GND)
Figure 2. Insertion Loss vs. Frequency (FILTER2 Input to GND)
(c) 2006 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
05/12/06
PRELIMINARY CM1484
Mechanical Details
SC70-5 Mechanical Specifications: The CM1484-02S7 is supplied in a 5-pin SC70 package. Dimensions are presented below. For complete information on the SC70-5, see the California Micro Devices SC70 Package Information document.
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Mechanical Package Diagrams
TOP VIEW e e
4
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 A2 B c D E e HE L # / tape and reel 2.00 0.26 3000 pieces Controlling dimension: millimeters Min 0.80 0.00 0.70 0.15 0.08 1.85 1.15 0.65 BSC 2.40 0.46 c SC70-5 (JEDEC name is MO-203 Issue A) 5 Millimeters Max 1.10 0.10 1.00 0.30 0.25 2.25 1.35
E HE
1 2 3
B
SIDE VIEW D A2 A
A1 END VIEW
L
Package Dimensions for SC70-5.
(c) 2006 California Micro Devices Corp. All rights reserved. 05/12/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
5

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