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AOZ8014
4-Line EMI Filter with Integrated ESD Protection
General Description
The AOZ8014 is an 4-line device integrating EMI filtering with ESD protection for each line. It is designed to suppress unwanted EMI/RFI signals and provide electrostatic discharge (ESD) protection in portable electronic equipment. This state-of-the-art device utilizes AOS leading edge Trench Vertical Structure [TVS]2 TM technology for superior clamping performance and filter attenuation over the full operating display range. The AOZ8014 has been optimized for protection of color LCD displays and CCD camera lines in cellular phones and other portable consumer electronic devices. The AOZ8014 consists of four identical circuits comprised of TVS diodes for ESD protection, and a resistor-capacitor network for EMI/RFI filtering. A series resistor value of 100 and a capacitance value of 17pF are used to achieve -25dB minimum attenuation from 800MHz to 3.0GHz. The TVS diodes provide effective suppression of ESD voltages in excess of 17kV (air discharge) and 17kV (contact discharge). This exceeds IEC 61000-4-2, level 4 ESD immunity test. The AOZ8014 comes in an RoHS compliant, 2.0mm x 2.0mm DFN package and is rated over a -40C to +85C ambient temperature range.
Features
4 lines for EMI filtering and ESD protection: - Exceeds IEC 61000-4-2, level 4 (ESD) immunity test - 17kV (air discharge) and 17kV (contact discharge) Trench Vertical Structure [TVS]2 TM based technology used to achieve excellent ESD clamping & filter performance over the full operating display range Filter performance: -25db attenuation from 800MHz to 3.0GHz Low operating voltage: 5.0V Capacitance stability over wide range of voltages and temperatures DFN package, 2.0 x 2.0 mm Pb-Free device

Applications

EMI filtering and ESD protection for data lines LCD displays, camera interface, I/O interface Portable handheld devices, cell phones, PDA phones
RoHS
Compliant
Electrical Schematic (each channel)
CHn (n = 1-4)
17pF 100
17pF
GND
Figure 1.
Rev. 1.3 November 2008
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AOZ8014
Ordering Information
Part Number
AOZ8014DI
Ambient Temperature Range
-40C to +85C
Package
DFN-8
Environmental
RoHS Compliant
All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards. Parts marked as Green Products (with "L" suffix) use reduced levels of Halogens, and are also RoHS compliant.
RoHS Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
Compliant
Pin Configuration
1 8
8
Exposed Pad (GND)
1
2 7
7
2
3 6
6
3
5
4
4
5
DFN-8
(Bottom View)
Top View
Pin Description
Pin Number
1, 8 2, 7 3, 6 4, 5 Exposed Pad
Pin Name
CH 1 CH 2 CH 3 CH 4 GND
Pin Function
Channel 1 Connections Channel 2 Connections Channel 3 Connections Channel 4 Connections Common Ground Connection
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AOZ8014
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the device.
Parameter
Storage Temperature (TS) ESD Rating per IEC61000-4-2, ESD Rating per IEC61000-4-2, contact(1) air(1) -65C to +150C 17kV 17kV 30kV
Rating
ESD Rating per Human Body Model(2)
Notes: 1. IEC 61000-4-2 discharge with CDischarge = 150pF, RDischarge = 330. 2. Human Body Discharge per MIL-STD-883, Method 3015 CDischarge = 100pF, RDischarge = 1.5k.
Electrical Characteristics
TA = 25C unless otherwise specified.
Symbol
VRWM VBR IR VCL RCH CCH fC
Parameter
Reverse Working Voltage Reverse Breakdown Voltage Reverse Leakage Current Signal Clamp Voltage Total Series Resistance Channel Capacitance Cut-off Frequency Attenuation from 800MHz to 3.0GHz
(3)(8)
Conditions
1mA(4) clamp(5)(8)
Min.
Typ.
Max.
5.0
Units
V V A V pF MHz dB
IT =
6
7
8 0.1
VRWM = 3.3V ILOAD = 12A, positive ILOAD = 12A, negative clamp(5)(8) IR = 20mA Input to Ground(6)(7)(8) Measured with 50 source and 50 load termination Measured with 50 source and 50 load termination 85 15 7.5 -6.5 100 17 125 -25
8.5 -7.5 115 19
Notes: 3. The working peak reverse voltage, VRWM, should be equal to or greater than the DC or continuous peak operating voltage level. 4. VBR is measured at the pulse test current IT. 5. Measurements performed using a 100ns Transmission Line Pulse (TLP) system. 6. Total capacitance is equal to 2 x CCH. 7. Measured at 25C, VR = 2.5V, f = 1.0MHz. 8. Guaranteed by design.
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AOZ8014
Typical Performance Characteristics
Insertion Loss Characteristics
0 -5 -10 Capacitance (pF) -15 S21 (db) -20 -25 -30 -35 -40 -45 -50 1 10 100 Frequency (MHz) 1000 10000 0.00 1 2 3 4 5 Reverse Biased Voltage (V)
@ 0V Bias @ 5V Bias
Typical Line Capacitance vs. Reverse Bias Voltage
1.50
1.25
1.00
0.75
0.50
0.25
Analog Crosstalk
0 12.50
Clamping Voltage
-20 10.00 S21 (db) -40 Current (A) 7.50 -80 5.00 1 10 100 Frequency (MHz) 1000 10000 5 6 7 8 9 10 11 12 13 14 15 Forward Voltage (V)
-60
-100
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AOZ8014
Package Dimensions, DFN 2.0 x 2.0 8L
D R b E
E
E1
L D1
TOP VIEW
BOTTOM VIEW
A
c
A1 Seating Plane
SIDE VIEW
Dimensions in millimeters
RECOMMENDED LAND PATTERN
0.50 0.25 Symbols A A1 b c D D1 E E1 e L R aaa bbb ccc ddd Min. 0.70 0.00 0.18 0.15 Nom. 0.75 0.02 0.25 0.20 2.00 BSC 1.35 1.50 2.00 BSC 0.75 0.90 0.50 BSC 0.20 0.30 0.20 0.15 0.10 0.10 0.08 Max. 0.80 0.05 0.30 0.25 1.60 1.00 0.40
Dimensions in inches
Symbols A A1 b c D D1 E E1 e L R aaa bbb ccc ddd Min. 0.028 0.000 0.007 0.006 Nom. Max. 0.030 0.031 0.001 0.002 0.010 0.012 0.008 0.010 0.079 BSC 0.053 0.059 0.063 0.079 BSC 0.030 0.035 0.039 0.020 BSC 0.008 0.012 0.016 0.008 0.006 0.004 0.004 0.003
0.90
1.70
0.30 1.50 UNIT: mm
Notes: 1. Dimensions and tolerances conform to ASME Y14.5M-1994. 2. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. 3. Dimension b applied to metallized terminal and is measured between 0.10mm and 0.30mm from the terminal tip. If the terminal has the optional radius on the other end of the terminal, dimension b should not be measured in that radius area. 4. Coplanarity ddd applies to the terminals and all other bottom surface metallization.
Rev. 1.3 November 2008
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AOZ8014
Part Marking
AOZ8014DI (DFN-8)
Part Code Underscore Denotes Green Product
AE2A 8F13
Assembly Lot Location Option Code
Year Code
Assembly Lot Code
Week Code
This datasheet contains preliminary data; supplementary data may be published at a later date. Alpha & Omega Semiconductor reserves the right to make changes at any time without notice. LIFE SUPPORT POLICY ALPHA & OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
Rev. 1.3 November 2008
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