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DATA SHEET
SKY12144-315: HIP3TM Variable Attenuator for DCS and PCS Base Stations
Features
23 dB attenuation range 1.5 dB insertion loss, 2:1 SWR 0-12 V control voltage 43 dBm IP3 Small footprint LGA package Designed for DCS/PCS base stations Lead (Pb)-free and RoHS-compliant
Connection Diagram
RF In/Out 10 pF
Vcontrol 10 pF Control Voltage
RF In/Out
Vcontrol
Description
The SKY12144-315 is a voltage controlled, variable attenuator from Skyworks series of HIP3TM components. It is specifically designed and specified for use as a wide dynamic range, lowdistortion attenuator for DCS and PCS base station applications centered at 1837.5 MHz and 1960 MHz. The SKY12144-315 employs a monolithic quadrature hybrid and a pair of silicon PIN diodes to achieve the specified low-distortion performance. It operates from 0-12 V with 1.6 mA typical control current at maximum attenuation. The SKY12144-315 is packaged in a small outline LGA (Land Grid Array) surface mount package with the internal elements affixed to an organic BT substrate.
10 pF 10 pF
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 C
ZO = 50 , unless otherwise noted
Parameter DCS frequency range (BW) PCS frequency range (BW) Control voltage (VCONTROL) range Insertion loss in BW Attenuation range VSWR in BW IP3 IM3 1900/1905 MHz, VCONTROL = 0 V 8 dBm 43 -70 VCONTROL = 0 V At FO, VCONTROL = 10 V At FO, VCONTROL = 12 V 18 23 FO 30 MHz Condition Min. 1805 1930 0 Typ. Max. 1870 1990 12 2 22 - 1.5 dBm dBc Unit MHz MHz V dB dB dB
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200268 Rev. B * Skyworks Proprietary Information * Products and product information are subject to change without notice. * January 4, 2006
1
DATA SHEET * SKY12144-315
Typical Performance Data
T = 25 C, ZO = 50 , unless otherwise noted
0 0V -5 4V 0 -0.05 -0.10 -0.15
Flatness (dB)
12 V
Loss (dB)
-10 -15 -20 -25 1.805 8V
-0.20 -0.25 -0.30 -0.35 -0.40 -0.45 -0.50
1.830
1.855
1.880
0
2
4
6
8
10
12
Frequency (GHz)
Control Voltage (V)
Insertion Loss vs. Frequency and Control Voltage -- DCS Band
-10 -15 4V 0V 12 10
Insertion Loss Flatness vs. Control Voltage -- DCS Band
12 V
Return Loss (dB)
Phase (Degrees)
8 6 4 8V 2 0V 4V 1.830 1.855 1.880 0 1.805
-20 8V -25 -30 -35 1.805 12 V
1.830
1.855
1.880
Frequency (GHz)
Frequency (GHz)
Input/Output Return Loss vs. Frequency and Control Voltage -- DCS Band
50 48 46 44 2.0
Phase vs. Frequency and Control Voltage -- DCS Band
IP3 (dBm)
42 40 38 36 34 32 30 0 2 4 6 8 10 12
Total Current (mA)
1.5
1.0
0.5
0 0 3 6 9 12
Control Voltage (V)
Control Voltage (V)
IP3 vs. Control Voltage RF1 = 1.900 GHz, RF2 = 1.905 GHz @ 8 dBm
2
Total Current vs. Control Voltage
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
January 4, 2006 * Skyworks Proprietary Information * Products and product information are subject to change without notice. * 200268 Rev. B
DATA SHEET * SKY12144-315
0 0V -5 4V
0 -0.05 -0.10 -0.15
Loss (dB)
-10 8V -15 -20 12 V -25 1.93 1.94 1.95 1.96 1.97 1.98 1.99
Flatness (dB)
-0.20 -0.25 -0.30 -0.35 -0.40 -0.45 -0.50 0 2 4 6 8 10 12
Frequency (GHz)
Control Voltage (V)
Insertion Loss vs. Frequency and Control Voltage -- PCS Band
-10 -15 12 10 0V
Insertion Loss Flatness vs. Control Voltage -- PCS Band
Return Loss (dB)
Phase (Degrees)
4V
12 V 8 6 4 8V 2 4V 0V 0 1.93 1.94
-20 8V -25 -30 -35 1.93 12 V
1.94
1.95
1.96
1.97
1.98
1.99
1.95
1.96
1.97
1.98
1.99
Frequency (GHz)
Frequency (GHz)
Input/Output Return Loss vs. Frequency and Control Voltage -- PCS Band
50 48 46 44 42 40 38 36 34 32 30 0 2 4 6 8 10 12
Phase vs. Frequency and Control Voltage -- PCS Band
Intermod (dBm)
Control Voltage (V)
3rd Order Intermod vs. Control Voltage RF1 = 1.900 GHz, RF2 = 1.905 GHz @ 8 dBm
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200268 Rev. B * Skyworks Proprietary Information * Products and product information are subject to change without notice. * January 4, 2006
3
DATA SHEET * SKY12144-315
Pin Out (Bottom View)
Vcontrol Vcontrol GND
Absolute Maximum Ratings
Characteristic RF input power Control voltage Control current Value 0.5 W CW, 4 W @ 12.5% duty cycle 15 V 50 mA each diode -40 C to +85 C -40 C to +85 C -10 V Class 1A
C1 GND B1 A1 IN/OUT
C2
C3 B3 GND
A2 GND
A3 IN/OUT
Operating temperature Storage temperature Maximum reverse diode voltage
Terminal No. A1 (Pin 1) A2 A3 B1 B3 C1 C2 C3
Terminal Name IN/OUT GND IN/OUT GND GND Vcontrol GND Vcontrol
Electrostatic discharge
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.
-315
0.193 (4.90 mm) 0.004 (0.10 mm) 0.126 (3.20 mm) 0.004 (0.10 mm) 0.063 (1.60 mm) Pin 1 Indicator 0.091 (2.32 mm) 0.003 (0.091 mm) Detail A Detail B 0.030 (0.775 mm) 0.002 (0.050 mm) 0.107 (2.740 mm) 0.004 (0.100 mm)
C L
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.
8X 0.004 (0.100 mm) 0.001 (0.02 mm)
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
C L
Detail A
Tape and Reel Information
Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note.
0.031 (0.800 mm) 0.002 (0.050 mm) Detail C Detail B 0.031 (0.800 mm) 0.002 (0.050 mm)
0.024 (0.600 mm) 0.002 (0.050 mm) Detail C Mold 0.078 (2.00 mm) 0.002 (0.05 mm) 0.013 (0.32 mm) 0.002 (0.4 mm) Seating Plane
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
January 4, 2006 * Skyworks Proprietary Information * Products and product information are subject to change without notice. * 200268 Rev. B
DATA SHEET * SKY12144-315
Copyright (c) 2002, 2003, 2004, 2005, 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, "Breakthrough Simplicity" and HIP3 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
200268 Rev. B * Skyworks Proprietary Information * Products and product information are subject to change without notice. * January 4, 2006
5

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