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| DATA SHEET SKY12322-86LF: GaAs Digital Attenuator 500 MHz-4 GHz 5 Bits, 0.5 dB LSB Features Broadband: 500 MHz-4 GHz Single positive control voltage: 2.7-5.5 V Low current consumption: <100 A @ 3 V Small MSOP-10 package Least significant bit attenuation: 0.5 dB Attenuation range: 15.5 dB High Input IP3: 45 dBm Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 C per JEDEC J-STD-020 Functional Block Diagram RF Input/Output V1 0.5 dB 1 dB V2 V3 2 dB Applications Transceiver transmit automatic level control or receive automatic gain control in GSM, CDMA, WCDMA, WLAN, Bluetooth(R), Zigbee(R), land mobile radio base stations or terminal equipment General-purpose signal attenuation in telecommunications and instrumentation applications V4 4 dB V5 8 dB RF Input/Output Description The SKY12322-86LF is a monolithic GaAs, binary-weighted, 5-bit, single-positive-control voltage digital attenuator which operates from 500 MHz to 4 GHz. The attenuator has a least significant bit (LSB) of 0.5 dB and total attenuation of 15.5 dB. The two RF ports are bilateral; each can be used as the RF input or the RF output. This attenuator requires an external supply voltage of 2.7-5.5 V. The SKY12322-86LF is comprised of 5 fixed attenuators in cascade, each of which having a shunt bypass switch. Beginning at the LSB, which is 0.5 dB, each succeeding fixed attenuator produces twice the attenuation of the preceding stage. The state of each bypass switch is controlled by the logic level voltage applied to the associated control voltage input; a logic high voltage closes the associated switch, thereby bypassing that fixed attenuator stage, and a logic low opens the switch to force the input signal to that stage through the associated attenuator. DC power consumption is very low, 100 A maximum with control voltage and supply voltage of 3 V. The switch can operate over the temperature range of -40 C to +85 C. An evaluation board is available upon request. NEW Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging. BUY NOW Innovation to GoTM Now available for purchase online. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200273 Rev. B * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * July 31, 2006 1 DATA SHEET * SKY12322-86LF Electrical Specifications at 25C VCTL = 0 V/3 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 , unless otherwise noted Parameter Insertion loss Frequency 500 MHz-1 GHz 1-2 GHz 2-3 GHz 3-4 GHz 500 MHz-1 GHz 1-3 GHz 3-4 GHz Return loss 1. Attenuation referenced to insertion loss. Min. Typ. 1.4 1.5 2.3 3.0 15.5 Max. 2.0 2.5 3.0 3.5 Unit dB dB dB dB dB dB dB dB dB Attenuation range (1) Attenuation accuracy(1) (0.2 + 3% of attenuation setting in dB) (0.3 + 5% of attenuation setting in dB) (0.5 + 5% of attenuation setting in dB) 10 20 500 MHz-4 GHz Operating Characteristics at 25C VCTL = 0 V/3 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 , unless otherwise noted Parameter Switching characteristics Rise, fall On, off Video feedthru Input power for 1 dB compression Intermodulation intercept point (IP3) Condition 10/90% or 90/10% RF 50% CTL to 90/10% RF TRISE = 1 ns, BW = 500 MHz VLOW = 0 V, VHIGH = 3 V VLOW = 0 V, VHIGH = 5 V For two-tone input power 5 dBm, f = 1 MHz VLOW = 0 V, VHIGH = 3 V VLOW = 0 V, VHIGH = 5 V 0.9-4.0 GHz 0.9-4.0 GHz 0.9-4.0 GHz 0.9-4.0 GHz VHIGH - 0.2 VLOW = 0 V @ 20 A max. VHIGH = 3 V @ 100 A max. to 5 V @ 200 A max. VHIGH = 0.2 < VS < VHIGH + 0.2 V Frequency Min. Typ. 150 300 70 21 27 45 45 25 VHIGH + 0.2 Max. Unit ns ns mV dBm dBm dBm dBm C/W V Thermal resistance Supply voltage Control voltages Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2 July 31, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200273 Rev. B DATA SHEET * SKY12322-86LF Typical Performance Data 0 -1 0 0.5 dB 4 dB 1 dB 8 dB 2 dB 15.5 dB Insertion Loss (dB) -2 -3 -4 -5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 -5 Attenuation (dB) Frequency (GHz) -10 -15 -20 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Insertion Loss vs. Frequency Frequency (GHz) Attenuation vs. Frequency, Normalized to Insertion Loss 2 0.5 dB 4 dB 1 dB 8 dB 2 dB 15.5 dB 0 IL 2 dB 15.5 dB 0.5 dB 4 dB 1 dB 8 dB Attenuation Error (dB) 1 -5 -10 Return Loss (dB) 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 -15 -20 -25 -30 -1 -2 -35 -40 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Frequency (GHz) Attenuation vs. Frequency, Normalized to Insertion Loss Frequency (GHz) Insertion Loss vs. Frequency Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200273 Rev. B * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * July 31, 2006 3 DATA SHEET * SKY12322-86LF Absolute Maximum Ratings Characteristic RF input power Supply voltage Control voltage Operating temperature Storage temperature Value 1 W for f > 500 MHz, VCTL = 0/8 V 0.5 W for f < 500 MHz, VCTL = 0/8 V VHIGH 0.2 V -0.2 V < VC < 8 V -40 C to +85 C -65 C to +150 C Pin Out V1 1 0.5 dB 10 RF Input/Output 1 dB V2 2 9 GND Performance is guaranteed only under the conditions listed in the specifications table and is not guaranteed under the full range(s) described by the Absolute Maximum specifications. Exceeding any of the absolute maximum/minimum specifications may result in permanent damage to the device and will void the warranty. V3 3 2 dB 8 GND CAUTION: Although this device is designed to be as robust as possible, ESD (Electrostatic Discharge) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions must be employed at all times. V4 4 4 dB 7 GND V5 5 8 dB 6 RF Input/Output Pin Descriptions Pin Number Pin Name V1 V2 V3 V5 V5 J2 GND Description Control Voltage - High Impedance control voltage input for 0.5 dB weighted bit (LSB) Control Voltage - High Impedance control voltage input for 1 dB weighted bit Control Voltage - High Impedance control voltage input for 2 dB weighted bit Control Voltage - High Impedance control voltage input for 4 dB weighted bit Control Voltage - High Impedance control voltage input for 8 dB weighted bit (MSB) RF Input/Output - RF input or output port, supply voltage input Equipotential Point - Equipotential points for control voltages and RF circuits. Must be connected to pcb ground via lowest possible impedance RF Input/Output - RF input or output port 1 Truth Table V1 VHIGH VLOW VHIGH VHIGH VHIGH VHIGH VLOW V2 VHIGH VHIGH VLOW VHIGH VHIGH VHIGH VLOW V3 VHIGH VHIGH VHIGH VLOW VHIGH VHIGH VLOW V4 VHIGH VHIGH VHIGH VHIGH VLOW VHIGH VLOW V5 VHIGH VHIGH VHIGH VHIGH VHIGH VLOW VLOW Nominal Attenuation Reference I.L. 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 2 3 4 5 6 7, 8, 9 3 V < VHIGH < 5 V, VS = VHIGH 0.2 V, 0 < VLOW < 0.2 V. 10 J1 Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4 July 31, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200273 Rev. B DATA SHEET * SKY12322-86LF Evaluation Board The evaluation board for SKY12322-86 allows the part to be fully exercised. The RF signal may be applied to J1 or to J2 without change in performance. The supply voltage (VS) is applied to pin 6 via R1. DC blocking capacitors (C1 and C2) are required at the RF ports. The values of R1, C1 and C2 are shown in Evaluation Board Components Table. The attenuation produced by the SKY12322-86 is determined by the voltages applied to the high impedance control voltage ports V1 through V5. Each control voltage port determines whether its asso- ciated attenuation bit, as listed in the Truth Table, is switched into or out of the RF signal path. Each of these control voltage ports must be held at 0 V (VLOW) or at VS 0.2 V (VHIGH). The supply voltage must be within 0.2 V of VHIGH or damage may result. Any combination of VHIGH and VLOW may be applied to ports V1 through V5. For example, if the desired attenuation value is 5.5 dB, VLOW is applied to the 0.5 dB, 1 dB and 4 dB voltage control ports, which are V1, V2 and V4, respectively. VHIGH is applied to the remaining voltage control ports to ensure that their attenuation bits are not switched in to the RF signal path. Evaluation Circuit PCB V5 5 V4 4 V3 3 V2 2 V1 1 SKY12322-86 6 J2 C2 R1 VS 7 8 9 10 C1 J1 Evaluation Board Components Component C1, C2 R1 U1 J1, J2 Description DC blocking capacitor RF block GaAs digital attenuator SMA connectors Default 47 pF, size 0402 10k , size 0402 MSOP-10 Pin 10 0.118 (3.00 mm) 0.006 (0.15 mm) 0.193 (4.90 mm) 0.006 (0.15 mm) Pin 1 Indicator Pin 1 0.034 (0.86 mm) 0.004 (0.10 mm) Recommended Solder Reflow Profiles Refer to the "Recommended Solder Reflow Profile" Application Note. 0.0197 (0.500 mm) BSC 0.118 (3.00 mm) 0.006 (0.15 mm) 8-16 0-6 0.043 (1.09 mm) Max. 0.022 (0.55 mm) 0.006 (0.15 mm) Tape and Reel Information Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note. 0.009 (0.23 mm) Ref. 0.006 (0.15 mm) Max. 0.002 (0.05 mm) Min. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200273 Rev. B * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * July 31, 2006 5 DATA SHEET * SKY12322-86LF Copyright (c) 2002, 2003, 2004, 2005, 2006, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling 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 using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and "Breakthrough Simplicity" are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 6 July 31, 2006 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200273 Rev. B |
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