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NUF8010MU 8-Channel EMI Filter with Integrated ESD Protection
The NUF8010MU is a eight-channel (C-R-C) Pi-style EMI filter array with integrated ESD protection. Its typical component values of R = 100 W and C = 7 pF deliver a cutoff frequency of 215 MHz and stop band attenuation greater than -20 dB from 800 MHz to 5.0 GHz. This performance makes the part ideal for parallel interfaces with data rates up to 143 Mbps in applications where wireless interference must be minimized. The specified attenuation range is very effective in minimizing interference from 2G/3G, GPS, Bluetooth(R) and WLAN signals. The NUF6010MU is available in the low-profile 16-lead 1.2mm x 3.5 mm x 0.5mm UDFN16 surface mount package.
Features/Benefits http://onsemi.com MARKING DIAGRAM
810 M G 1
16 1 UDFN16 MU SUFFIX CASE 517AF 810 M G
* 8.0 kV ESD Protection on each channel (IEC61000-4-2 Level 4, * R/C Values of 100 W and 7 pF deliver Exceptional S21 Performance * *
Characteristics of 250 MHz f3dB and -20 dB Stop Band Attenuation from 800 MHz to 3.0 GHz Integrated EMI/ESD System Solution in UDFN Package Offers Exceptional Cost, System Reliability and Space Savings This is a Pb-Free Device Contact Discharge)
= Specific Device Code = Date and Assembly Location = Pb-Free Package
ORDERING INFORMATION
Device NUF8010MUT2G Package UDFN16 (Pb-Free) Shipping 3000 / Tape & Reel
Applications
* EMI Filtering for LCD and Camera Data Lines * EMI Filtering and Protection for I/O Ports and Keypads
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
0 -5 -10 -15 S21 (dB) Filter + ESDn R = 100 W Cd = 7 pF Cd = 7 pF Filter + ESDn -20 -25 -30 -35 See Table 1 for pin description -40 -45 -50 1.E+06 1.E+07 1.E+08 1.E+09 FREQUENCY (Hz) 1.E+10
Figure 1. Electrical Schematic
Figure 2. Typical Insertion Loss Characteristic
(c) Semiconductor Components Industries, LLC, 2009
August, 2009 - Rev. 1
1
Publication Order Number: NUF8010MU/D
NUF8010MU
Table 1. FUNCTIONAL PIN DESCRIPTION
Filter Filter 1 Filter 2 Filter 3 Filter 4 Filter 5 Filter 6 Filter 7 Filter 8 Ground Pad Device Pins 1 & 16 2 & 15 3 & 14 4 & 13 5 & 12 6 & 11 7 & 10 8&9 GND Filter + ESD Channel 1 Filter + ESD Channel 2 Filter + ESD Channel 3 Filter + ESD Channel 4 Filter + ESD Channel 5 Filter + ESD Channel 6 Filter + ESD Channel 6 Filter + ESD Channel 6 Ground Description
MAXIMUM RATINGS
Parameter ESD Discharge IEC61000-4-2 Operating Temperature Range Storage Temperature Range Maximum Lead Temperature for Soldering Purposes (1.8 in from case for 10 seconds) Contact Discharge Symbol VPP TOP TSTG TL Value 8.0 -40 to 85 -55 to 150 260 Unit kV C C C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
ELECTRICAL CHARACTERISTICS (TJ = 25C unless otherwise noted)
Parameter Maximum Reverse Working Voltage Breakdown Voltage Leakage Current Resistance Diode Capacitance Line Capacitance 3 dB Cut-Off Frequency (Note 1) 6 dB Cut-Off Frequency 1. 50 W source and 50 W load termination. Symbol VRWM VBR IR RA Cd CL f3dB f6dB IR = 1.0 mA VRWM = 3.3 V IR = 20 mA VR = 2.5 V, f = 1.0 MHz VR = 2.5 V, f = 1.0 MHz Above this frequency, appreciable attenuation occurs Above this frequency, appreciable attenuation occurs 85 100 7 14 215 280 6.0 7.0 Test Conditions Min Typ Max 5.0 8.0 100 115 11 18 Unit V V nA W pF pF MHz MHz
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TYPICAL PERFORMANCE CURVES (TA= 25C unless otherwise specified)
0 -5 -10 -15 S21 (dB) -25 -30 -35 -40 -45 -50 1.E+06 1.E+07 1.E+08 1.E+09 FREQUENCY (Hz) 1.E+10 S41 (dB) -20 0 -10 -20 -30 -40 -50 -60 -70 1.E+06
1.E+07
1.E+08 1.E+09 FREQUENCY (Hz)
1.E+
Figure 3. Typical Insertion Loss Characteristic
Figure 4. Typical Analog Crosstalk
2 NORMALIZED CAPACITANCE
1.05
1.5 RESISTANCE (W) 0 1 2 3 4 5
1.025
1
1
0.5
0.975
0
0.95 -40
-20
0
20
40
60
80
REVERSE VOLTAGE (V)
TEMPERATURE (C)
Figure 5. Typical Capacitance vs. Reverse Biased Voltage (Normalized Capacitance Cd at 2.5 V)
Figure 6. Typical Resistance over Temperature
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NUF8010MU
Theory of Operation
The NUF8010MU combines ESD protection and EMI filtering conveniently into a small package for today's size constrained applications. The capacitance inherent to a typical protection diode is utilized to provide the capacitance value necessary to create the desired frequency response based upon the series resistance in the filter. By combining this functionality into one device, a large number of discrete components are integrated into one small package saving valuable board space and reducing BOM count and cost in the application.
Application Example
The accepted practice for specifying bandwidth in a filter is to use the 3 dB cutoff frequency. Utilizing points such as the 6 dB or 9 dB cutoff frequencies results in signal degradation in an application. This can be illustrated in an application example. A typical application would include EMI filtering of data lines in a camera or display interface. In such an example it is important to first understand the signal and its spectral content. By understanding these things, an appropriate filter can be selected for the desired application. A typical data signal is pattern of 1's and 0's transmitted over a line in a form similar to a square wave. The maximum frequency of such a signal would be the pattern 1-0-1-0 such that for a signal with a data rate of 100 Mbps, the maximum frequency component would be 50 MHz. The next item to consider is the spectral content of the signal, which can be understood with the Fourier series
approximation of a square wave, shown below in Equations 1 and 2 in the Fourier series approximation. From this it can be seen that a square wave consists of odd order harmonics and to fully construct a square wave n must go to infinity. However, to retain an acceptable portion of the waveform, the first two terms are generally sufficient. These two terms contain about 85% of the signal amplitude and allow a reasonable square wave to be reconstructed. Therefore, to reasonably pass a square wave of frequency x the minimum filter bandwidth necessary is 3x. All ON Semiconductor EMI filters are rated according to this principle. Attempting to violate this principle will result in significant rounding of the waveform and cause problems in transmitting the correct data. For example, take the filter with the response shown in Figure 7 and apply three different data waveforms. To calculate these three different frequencies, the 3 dB, 6 dB, and 9 dB bandwidths will be used.
Equation 1: a 1 sin((2n * 1)w t) x(t) + 1 ) 2 0 2 p n + 1 2n * 1
S
(eq. 1)
Equation 2 (simplified form of Equation 1): sin(w 0t) sin(3w 0t) sin(5w 0t) ) ) ) AAA (eq. 2) x(t) + 1 ) 2 1 3 5 2p
-3 dB -6 dB -9 dB Magnitude (dB)
f1 f2 f3
100k
1M
10M
100M Frequency (Hz)
1G
10G
Figure 7. Filter Bandwidth
From the above paragraphs it is shown that the maximum supported frequency of a waveform that can be passed through the filter can be found by dividing the bandwidth by a factor of three (to obtain the corresponding data rate
multiply the result by two). The following table gives the bandwidth values and the corresponding maximum supported frequencies and the third harmonic frequencies.
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NUF8010MU
Table 2. Frequency Chart
Bandwidth 3 dB - 100 MHz 6 dB - 200 MHz 9 dB - 300 MHz Maximum Supported Frequency 33.33 MHz (f1) 66.67 MHz (f2) 100 MHz (f3) Third Harmonic Frequency 100 MHz 200 MHz 300 MHz
Considering that 85% of the amplitude of the square is in the first two terms of the Fourier series approximation most of the signal content is at the fundamental (maximum supported) frequency and the third harmonic frequency. If a signal with a frequency of 33.33 MHz is input to this filter, the first two terms are sufficiently passed such that the signal is only mildly affected, as is shown in Figure 8a. If a signal
with a frequency of 66.67 MHz is input to this same filter, the third harmonic term is significantly attenuated. This serves to round the signal edges and skew the waveform, as is shown in Figure 8b. In the case that a 100 MHz signal is input to this filter, the third harmonic term is attenuated even further and results in even more rounding of the signal edges as is shown in Figure 8c. The result is the degradation of the data being transmitted making the digital data (1's and 0's) more difficult to discern. This does not include effects of other components such as interconnect and other path losses which could further serve to degrade the signal integrity. While some filter products may specify the 6 dB or 9 dB bandwidths, actually using these to calculate supported frequencies (and corresponding data rates) results in significant signal degradation. To ensure the best signal integrity possible, it is best to use the 3 dB bandwidth to calculate the achievable data rate.
Input Waveform a) Frequency = f1
Output Waveform
Input Waveform b) Frequency = f2
Output Waveform
Input Waveform
c) Frequency = f3
Output Waveform
Figure 8. Input and Output Waveforms of Filter
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NUF8010MU
PACKAGE DIMENSIONS
UDFN16, 3.5x1.2, 0.4P CASE 517AF-01 ISSUE B
D
2X
0.10 C
2X
0.10 C
0.10 C
16X
0.08 C SIDE VIEW D2
16X
L
16X
K
Bluetooth is a registered trademark of Bluetooth SIG.
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
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative
EEEE EEEE
1 16
PIN ONE REFERENCE
E
A1
TOP VIEW
DETAIL A
(A3)
A
SEATING PLANE
A1
14X
C
e
8
E2 1
9
16X
b 0.10 C A B 0.05 C
NOTE 3
BOTTOM VIEW
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CC EE EE
A B
A3
DETAIL A
NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 mm FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. DIM A A1 A3 b D D2 E E2 e K L MILLIMETERS MIN NOM MAX 0.45 0.50 0.55 0.00 0.03 0.05 0.127 REF 0.15 0.20 0.25 3.50 BSC 2.70 2.80 2.90 1.20 BSC 0.20 0.30 0.40 0.40 BSC 0.20 --- --- 0.20 0.25 0.30
SOLDERING FOOTPRINT*
1.35 0.35
0.30 0.10 2.85
0.20
15X
0.40 PITCH
0.32
16X
DIMENSIONS: MILLIMETERS
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
NUF8010MU/D

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