skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203116a ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? feb ruary 6, 2014 1 data sheet CLA4610-085LF: surface mount limiter diode applications ? low-loss, high-power limiters ? receiver protectors features ? low thermal resistance: 73 c/w ? typical threshold level: +16 dbm @ 2.6 ghz ? low capacitance: 0.32 pf ? low-profile, ultra-miniature qfn (3-pin, 2 x 2 mm) package (msl1, 260 ? c per jedec j-std-020) s kywork s g reen? product s are compliant with all applicable legi s lation and are halogen-free. for additional information, refer to skyworks de?nition of green? , document number s q04-0074. anode (pin 1) anode (pin 3) c athode (pin 2, expo s ed paddle) figure 1. CLA4610-085LF block diagram description the CLA4610-085LF is a surface-mountable, low-capacitance silicon pin limiter diode designed as a shunt-connected pin diode for high-power limiter applications from 10 mhz to over 6 ghz. maximum resistance at 10 ma is 2.2 and maximum capacitance at 6 v is 0.32 pf. the combination of low junction capacitance, low parasitic inductance, low thermal resistance, and nominal 4.5 m i-region width makes the CLA4610-085LF useful in large signal-limiter applications. the threshold level is +15 dbm, nominal. a block diagram of the CLA4610-085LF is shown in figure 1. the absolute maximum ratings of the CLA4610-085LF are provided in table 1. electrical specifications are provided in table 2. typical performance characteristics of the CLA4610-085LF are provided in table 3 and illustrated in figure 4. free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 2 february 6, 2014 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203116a table 1. CLA4610-085LF absolute maximum ratings (note 1) parameter symbol minimum maximum units reverse voltage v r 120 v forward current at 25 c i f 100 ma rf input power: 1 s pulse, 1% duty cycle at t case = 85 c cw at t case = 85 c p in 100 10 w w cw power dissipation (at maximum input power, insertion loss = 20 db) at t case = 85 c p diss 10 w storage temperature t stg C65 +200 ? c junction temperature t j 175 ? c operating temperature t a C40 +150 ? c electrostatic discharge: charged device model (cdm), class 4 human body model (hbm), class 1b machine model (mm), class a esd 1000 500 100 v v v note 1: exposure to maximum rating conditions for extended periods may reduce device reliability. there is no damage to device with on ly one parameter set at the limit and all other parameters set at or below their nominal value. exceeding any of the limits listed here may result in permanent damage to the d evice. caution : although this device is designed to be as robust as possible, electrostatic discharge (esd) can damage this device. this devi ce must be protected at all times from esd. static charges may eas ily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. industry-standard esd precautions should be used at all times. table 2. CLA4610-085LF electrical specifications (note 1) (t a = +25 ? c unless otherwise noted) parameter symbol test condi tion min typical max units breakdown voltage v b i r = 10 a 80 120 v reverse current i r v r = 64 v 100 na capacitance c t f = 1 mhz, v r = 6 v f = 1 mhz, v r = 0 v 0.28 0.32 0.35 pf pf series resistance r s f = 500 mhz, i f = 10 ma 1.85 2.2 series inductance l s 0.3 nh carrier lifetime t l i f = 10 ma 20 ns i region width w 4.5 m cw thermal resistance jc junction to case 73 ? c/w peak pulse thermal resistance p single 1 s pulse width junction to case ( 10% duty cycle) 7 ? c/w note 1: performance is guaranteed only under the conditions listed in this table. free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203116a ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? feb ruary 6, 2014 3 table 3. typical performance @ 25 c part number insertion loss @ C10 dbm (db) input power for 1 db loss (dbm) maximum pulsed input power (dbm) output @ maximum pulsed input (dbm) maximum cw input power (dbm) recovery time (ns) CLA4610-085LF 0.2 +16 +43.5 +19 33.5 5 n otes : limiter power results @ 2.6 ghz for shunt-connect ed, single-limiter diode and dc return in 50 line. maximum pulsed power for 1 s pulse and 10% duty cycle with chip @ 25 c heat sink. derate linearly to 0 w @ 175 c. maximum cw input power @ 25 c heat sink. derate linearly to 0 w @ 175 c. recovery time to insertion loss from limiting state. functional description the pin limiter diode can be described as an incident power controlled, rf variable resistor. when there is no large input signal present, the impedance of the limiter diode is at its maximum, which produces minimum insertion loss, typically less than 0.1 db. the presence of a large input signal temporarily forces the impedance of the diode to a much lower value, which produces an impedance mismatch that reflects the majority of the input signal power back toward its source. during the limiting process, a dc current is generated by the pin limiter diode. the current is not the result of rectification, but is the result of charge carriers being forced into the i layer by the forward alternations of the large input signal. a complete path must be provided for this current or the diode is not capable of limiting. therefore, an rf choke or similar structure must be provided to complete the path for dc current flow. the dc block capacitors shown in figure 2 are optional; they protect the limiter diode from external dc voltage that may be present in the source or load circuits. a cross section of the suggested printed circuit board design is shown in figure 3. the via shown in this view is critical, both for electrical performance and for thermal performance. it is recommended that several vias should be placed under the entire footprint of the exposed paddle (pin 2) to minimize both electrical inductance to the system ground and thermal resistance to the system heat sink. for more information about the operation of limiter diodes, refer to the skyworks application note, pin limiter diodes in receiver protectors , document number 200480. limiter pin rf c hoke d c block d c block input output figure 2. single-stage limiter circuit c la4 6 10-085lf thermal via s1 6 30k figure 3. cross-sectional view of suggested printed circuit board free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 4 february 6, 2014 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203116a typical performance characteristics (t a = 25 c, unless otherwise noted) C25 C20 C15 C10 C5 0 C10 0 +10 +20 +30 +40 +50 in s ertion lo ss (db) c w input power (dbm) 1 g hz 2. 6 g hz y0 6 27 figure 4. insertion loss vs input power (f = 2.6 ghz, board loss included) high power limiter design application the CLA4610-085LF pin limiter diode is designed for shunt applications in receiver protection power limiter circuits. compared to other surface mount packages, the design of the qfn package produces lower thermal resistance and also reduces the effects of the parasitic inductance of the anode bond wires. a cross-sectional view of the CLA4610-085LF pin limiter diode is shown in figure 5. the cathode of the die is soldered directly to the top of the exposed paddle. this paddle is composed of copper, so its thermal resistance is very low. the copper ground paddle minimizes the total thermal resistance between the i layer, which is the location where most heat is generated under normal operation, and the surface to which the package is mounted. minimal thermal resistance between the i layer and the external environment minimizes junction temperature. the electrically equivalent circuit of the CLA4610-085LF pin limiter diode is shown in figure 6. the inductances of pins 1 and 2, as well as the inductances of the bond wires are in series with the input and output transmission lines of the external circuit rather than the portion of the circuit that contains the shunt pin limiter diode. anode (pin 1) c athode (pin 2) anode (pin 3) encap s ulated epoxy bond wire (2 place s ) c la4 6 10-085lf die not to scale s1 6 2 8 k figure 5. cross-sectional view of the CLA4610-085LF free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203116a ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? feb ruary 6, 2014 5 pin 1 pin 2 pin 3 l s erie s c pk g c pk g l s erie s l paddle c la4 6 10-085lf die s1 6 29k figure 6. CLA4610-085LF electrically equivalent circuit pin 1 pin 2 part outline 2x 0.27 r0.20 expo s ed s oldering area typ. pin 3 2x 0.55 2x 0. 6 0 2x 0.85 2x 0.25 s2923 figure 7. CLA4610-085LF pcb layout footprint package dimensions the pcb layout footprint for the CLA4610-085LF is shown in figure 7. typical case markings are shown in figure 8. package dimensions for the 3-pin qfn are provided in figure 9, and figure 10 provides the tape and reel dimensions. package and handling information instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. the CLA4610-085LF is rated to moisture sensitivity level 1 (msl1) at 260 ? c. it can be used for lead or lead-free soldering. for additional information, refer to the skyworks application note, solder reflow information , document number 200164. care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. production quantities of this product are shipped in a standard tape and reel format. free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 6 february 6, 2014 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203116a orientation indicator 31 s kywork s part number jq 31 2 y0 6 28 figure 8. typical case markings (top view) all dimensions in millimeters s1 6 32 2 0.2 2 0.2 orientation indicator 0. 9 0 0.1 detail b 0.4 0.1 0.27 0.15 1 13 2 expo s ed pad detail b 0.5 0.15 1.7 0.15 3 2 top view s ide view bottom view figure 9. CLA4610-085LF qfn package dimension drawing free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203116a ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? feb ruary 6, 2014 7 notes: 1. carrier tape: black conductive polystyrene. 2. cover tape material: transparent conductive hsa. 3. cover tape size: 5.40 mm width. 4. ten sprocket hole pitch cumulative tolerance = 0.20 mm. 5. esd surface resistivity is 1 x 10 8 ohms/square per eia, jedec tape and reel speci?cation. 6. ao and bo measurement point to be 0.30 mm from bottom pocket. 7. all measurements are in millimeters. 2.30 (ao) 2.30 (bo) 8.00 +0.30/C0.10 4.00 ( s ee note 4) 4.00 0.10 3.50 0.05 2.00 0.05 1.75 0.10 0.30 0.05 (t) a b 1.00 (ko) a b b a pin #1 ? 1.50+ 0.10/C0.00 ? 1.00 min. s1 6 01 r0.30 typ. figure 10. CLA4610-085LF tape and reel dimensions free datasheet http://www..net/
data sheet ? CLA4610-085LF surface mount limiter diode skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 8 february 6, 2014 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203116a ordering information model name manufacturing part number CLA4610-085LF surface mount limiter diode CLA4610-085LF copyright ? 2014 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skyworks) products or services. these m aterials, including the information co ntained herein, are provided by skyworks as a service to its customers and may be used for info rmational purposes only by the cu stomer. skyworks assumes no res ponsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentat ion, products, services, specific ations or product descriptions at any time, without notice. skyworks makes no commitment to update the materials or information and shall have no responsi bility whatsoever for conflicts, incompatibilities, or other diff iculties arising from any future changes. no license, whether express, implied, by es toppel or otherwise, is granted to any in tellectual property rights by this document . skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, re production or use of skyworks products, information or mate rials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are pr ovided as is without warranty of any ki nd, whether express, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, qualit y or non-infringement of any intellectual property right; all su ch warranties are hereby expressly disclaimed. skyworks does not warrant the accura cy or completeness of the information, text, graphics or other items contained within these ma terials. skyworks shall not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequentia l damages, including without limitation, lost revenues or lost profits that may result from the use of the materials or information, wheth er or not the recipient of mat erials has been advised of the possibility of such damage. skyworks products are no t intended for use in medical, lifesaving or life-su staining applications, or other equipment in which the failure of the skyworks products could lead to personal injury, death, physical or environmental damage. skyw orks customers using or selli ng skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. customers are responsible for their products and applications us ing skyworks products , which may deviate from published specifi cations as a result of design de fects, errors, or operation of products outside of published pa rameters or design specifications. customers sh ould include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, customer product de sign, or damage to any equipment resulting from the use of skyw orks products outsid e of stated published specifications or parameters. skyworks, the skyworks symbol, a nd breakthrough simplicity are trademarks or registered tradem arks of skyworks solutions, inc ., in the united states and othe r countries. third-party brands and names are for identification purposes only, and are the proper ty of their respective owners. additional information, includ ing relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. free datasheet http://www..net/
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