AOZ8014 4-Line EMI Filter with Integrated ESD Protection General Description Features 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 ™ 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 100Ω 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. 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 ™ 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 ● ● ● The AOZ8014 comes in an RoHS compliant, 2.0mm x 2.0mm DFN package and is rated over a -40°C to +85°C ambient temperature range. 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) 100Ω CHn (n = 1–4) 17pF 17pF GND Figure 1. Rev. 1.3 November 2008 www.aosmd.com Page 1 of 6 AOZ8014 Ordering Information Part Number Ambient Temperature Range Package Environmental AOZ8014DI -40°C to +85°C DFN-8 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 2 7 3 3 6 4 4 5 1 Exposed Pad (GND) 8 7 6 5 2 DFN-8 Top View (Bottom View) Pin Description Pin Number Pin Name 1, 8 CH 1 Channel 1 Connections 2, 7 CH 2 Channel 2 Connections 3, 6 CH 3 Channel 3 Connections 4, 5 CH 4 Channel 4 Connections Exposed Pad GND Common Ground Connection Rev. 1.3 November 2008 Pin Function www.aosmd.com Page 2 of 6 AOZ8014 Absolute Maximum Ratings Exceeding the Absolute Maximum ratings may damage the device. Parameter Rating Storage Temperature (TS) -65°C to +150°C ESD Rating per IEC61000-4-2, contact(1) ±17kV ESD Rating per IEC61000-4-2, air(1) ±17kV ESD Rating per Human Body Model(2) ±30kV Notes: 1. IEC 61000-4-2 discharge with CDischarge = 150pF, RDischarge = 330Ω. 2. Human Body Discharge per MIL-STD-883, Method 3015 CDischarge = 100pF, RDischarge = 1.5kΩ. Electrical Characteristics TA = 25°C unless otherwise specified. Symbol VRWM VBR IR Parameter Reverse Working Voltage Conditions 1mA(4) Reverse Breakdown Voltage IT = Reverse Leakage Current VRWM = 3.3V Units 5.0 V 8 V 0.1 µA 7.5 -6.5 8.5 -7.5 V 85 100 115 Ω 15 17 19 pF clamp(5)(8) Signal Clamp Voltage ILOAD = 12A, positive ILOAD = 12A, negative clamp(5)(8) RCH Total Series Resistance IR = 20mA fC Max. 6 VCL CCH Min. Typ. (3)(8) Ground(6)(7)(8) 7 Channel Capacitance Input to Cut-off Frequency Measured with 50Ω source and 50Ω load termination 125 MHz Attenuation from 800MHz to 3.0GHz Measured with 50Ω source and 50Ω load termination -25 dB 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 25°C, VR = 2.5V, f = 1.0MHz. 8. Guaranteed by design. Rev. 1.3 November 2008 www.aosmd.com Page 3 of 6 AOZ8014 Typical Performance Characteristics Typical Line Capacitance vs. Reverse Bias Voltage Insertion Loss Characteristics 0 1.50 @ 0V Bias @ 5V Bias -5 1.25 -10 Capacitance (pF) S21 (db) -15 -20 -25 -30 -35 -40 1.00 0.75 0.50 0.25 -45 0.00 -50 1 10 100 1000 1 10000 2 3 4 5 Reverse Biased Voltage (V) Frequency (MHz) Analog Crosstalk Clamping Voltage 0 12.50 -20 Current (A) S21 (db) 10.00 -40 -60 7.50 -80 5.00 -100 1 10 100 1000 10000 Frequency (MHz) Rev. 1.3 November 2008 5 6 7 8 9 10 11 12 13 14 15 Forward Voltage (V) www.aosmd.com Page 4 of 6 AOZ8014 Package Dimensions, DFN 2.0 x 2.0 8L b D E R E1 E L D1 TOP VIEW A c BOTTOM VIEW A1 Seating Plane SIDE VIEW Dimensions in millimeters RECOMMENDED LAND PATTERN 0.50 0.25 0.90 0.30 1.50 UNIT: mm 1.70 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 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 www.aosmd.com Page 5 of 6 AOZ8014 Part Marking AOZ8014DI (DFN-8) AE2A 8F13 Part Code Underscore Denotes Green Product Year Code Assembly Lot Location Option 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. Rev. 1.3 November 2008 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. www.aosmd.com Page 6 of 6