Dual Channel EMI Filter with ESD Protection CM1485
Features
• • • • • • • Two channels of EMI filtering with integrated ESD protection Pi-style EMI filters in a capacitor-resistorcapacitor (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 30dB attenuation (typical) at 1GHz 6-lead SOT-563 package Available with lead-free finishing
Product Description
The CM1485 is a 2 channel pi-style EMI filter array with ESD protection, housed in a 6-lead SOT-563 package. The CM1485 has component values of 12pF-100Ω-12pF per channel. The CM1485 has a cut-off frequency of 125MHz and can be used in applications with data rates up to 48Mbps. 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 IEC610004-2 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. wireless handsets, PDAs, notebook computers) because of its small package and easy-to-use pin assignments. In particular, the CM1485 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 CM1485 is housed in a small, 6-lead SOT-563 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
©2010 SCILLC. All rights reserved. May 2010 – Rev. 2
Publication Order Number: CM1485/D
CM1485
PIN DESCRIPTIONS
Pin 1 2 3 4 5 6 NAME FILTER1 GND FILTER1 FILTER2 GND FILTER2 DESCRIPTION Filter + ESD Channel 1 Ground (1) Filter + ESD Channel 1 Filter + ESD Channel 2 Ground
(1)
Filter + ESD Channel 2
Note 1: Pin 2 and Pin 5 must be well grounded at the same time.
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CM1485
Ordering Information
PART NUMBERING INFORMATION
Lead-free Finish Pins 6 Package SOT-563 Ordering Part Number1 CM1485 -02SE Part Marking N85
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 0.15 UNITS °C mW W
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature Range RATING –40 to +85 UNITS °C
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CM1485
ELECTRICAL OPERATING CHARACTERISTICS(1)
SYMBOL R CTOTAL ILEAK VBR PARAMETER Resistance Total Channel Capacitance At 2.5VDC Reverse Bias, 1MHz, 30mVAC VDIODE = +3.0V ILOAD = 1mA Note 2 ±30 ±15 kV kV 6.0 7.0 CONDITIONS MIN 90 19.2 TYP 100 24 MAX 110 28.8 UNITS Ω pF μA
Diode Leakage Current (reverse bias) Breakdown Voltage Positive Clamp In-system ESD Withstand Voltage a) Human Body Model, MIL-STD-883, Method 3015 b) Contact Discharge per IEC 610004-2 Level 4 Dynamic Resistance Positive Negative Cut-off Frequency ZSOURCE = 50Ω, ZLOAD = 50Ω Absolute Attenuation @ 1GHz from 0dB Level
1.0
V
VESD
RDYN
2.3 0.9
Ω Ω MHz dB
f
C
125 ZSOURCE = 50Ω, Z LOAD = 50Ω, DC Bias = 0V; See Notes 1 and 3 ZSOURCE = 50Ω, Z LOAD = 50Ω, DC Bias = 0V; See Notes 1 and 3 35
A1GHz
A800MHz - 6GHz Absolute Attenuation @ 800MHz to
6GHz from 0dB Level
30
dB
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. Note 3: Attenuation / RF curves characterized by a network analyzer using microprobes.
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CM1485
Performance Information
Typical Filter Performance (TA = 25°C, 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)
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CM1485
Performance Information (cont’d)
Typical Diode Capacitance vs. Input Voltage
Figure 3. Filter Capacitance vs. Input Voltage (normalized to capacitance at 2.5VDC and 25°C)
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CM1485
Mechanical Details
SOT-563 Mechanical Specifications The CM1485 is supplied in a 6-pin SOT-563 package. Dimensions are presented below.
PACKAGE DIMENSIONS
Package Leads Millimeters Dim. Min A b c D E E1 e e1 L # per tape and reel 1.50 0.50 0.17 0.08 1.60 BSC 1.60 1.20 BSC 0.50 BSC 1.00 BSC 0.20 BSC 5000 pieces 1.70 Nom 0.55 Max 0.60 0.27 0.18 Min 0.020 0.007 0.003 Nom 0.022 Max 0.024 0.011 0.007 SOT-563 6 Inches
0.063 BSC 0.059 0.063 0.067
0.047 BSC 0.020 BSC 0.040 BSC 0.008 BSC
Package Dimensions for SOT-563
Controlling dimension: millimeters
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CM1485
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. SCILLC products are not designed, intended, 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 other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless 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 alleges that SCILLC was negligent regarding the design or manufacture of the part. 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
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