AS179-000 SKYWORKS

Document overview

  • Manufacturer or author: Provided By digicamel.com
  • PDF pages: 6

Technical content

Features

  • Broadband: 300 kHz–3 GHz
  • Low insertion loss: 0.3 dB @ 900 MHz
  • High isolation: 25 dB @ 900 MHz
  • P1 dB: +30 dBm @ 3 V control voltage
  • IP3: +43 dBm @ 3 V control voltage
  • Low DC power consumption
  • 100% RF tested in die form
  • Lead (Pb)-free
  • ESD class 0

Applications

  • General purpose medium power switch in telecommunication
  • Transceiver transmit-receive switch in 802.11b/g WLAN, etc., systems

Description

The AS179-000 is a monolithic SPDT switch fabricated using Skyworks proprietary GaAs PHEMTs as the switching elements. This wideband switch operates with RF signals from 300 kHz–3 GHz. The RF signal paths within the AS179-000 are bilateral. The J 1 and J2 RF input/output terminals are reflective. Switching is controlled via a pair of high-impedance control voltage inputs. Depending upon the logic voltage level applied to the control voltage pins, the common RF pin (J 1) is con- nected to one of two switched RF pins (J 2 or J3) via a low insertion loss path, while the path between the RF common and the other RF pin is in its high isolation state. DC power consumption is very low, 100 µA nominal with control voltage of 3 V. The switch can operate over the temperature range of -40° C to 85° C. DC blocks required on all RF ports for positive control voltage operation. RF1 RF2 Ground Control Voltage 1 Control Voltage 2 RF Common CBL CBL CBL Functional Block Diagram Skyworks offers lead (Pb)-free “environmentally friendly” packaging that is RoHS compliant (European Parliament for the Restriction of Hazardous Substances). NEW Characteristic Value RF input power (VCTL 0 V/7 V) 6 W, f > 500 MHz

2 W, 100 > f > 500 MHz

315 mW, f = 300 kHz(1) Control voltage range -0.2 V ≤ VC ≤ 8 V Operating temperature range -40 °C to +85 °C Storage temperature range -40 °C to +150 °C Absolute Maximum Ratings 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. 1. Derate linearly for 300 kHz < f < 100 MHz. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce poten- tials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions must be employed at all times.

Skyworks Solutions, Inc.  Phone [781] 376-3000  Fax [781] 376-3100  sales@skyworksinc.com  www.skyworksinc.com February 17, 2005  Skyworks Proprietary Information  Products and Product Information are Subject to Change Without Notice .  200078 Rev. A PRELIMINARY DATA SHEET • AS179-000 Parameter Frequency Min. Typ. Max. Unit Insertion loss 300 kHz–1.0 GHz 0.30 0.4 dB 1.0–2.0 GHz 0.30 0.4 dB 2.0–3.0 GHz 0.35 0.5 dB Isolation 300 kHz–1.0 GHz 22 25 dB 1.0–2.0 GHz 20 22 dB 2.0–3.0 GHz 20 22 dB VSWR(1) 300 kHz–3.0 GHz 1.1:1 1.3:1 Electrical Specifications at 25 °C VCTL = 0 V/3 V, T = 25° C, PINPUT = 0 dBm, ZO = 50 Ω, unless otherwise noted. 1. Insertion loss state. Parameter Condition Frequency Min. Typ. Max. Unit Switching characteristics Rise, fall (10/90% or 90/10% RF) 10 ns On, off (50% CTL to 90/10% RF) 20 ns Video feedthru (T RISE = 1 ns, 25 mV measurement BW = 500 MHz) Input power for 1 dB compression (IP 1 dB)V CTL = 0/3 V 0.5–3.0 GHz 30 dBm VCTL = 0/5 V 0.5–3.0 GHz 34 dBm Input Intermodulation intercept point (IIP3) For two-tone input power +5 dBm VCTL = 0/3 V 0.5–3.0 GHz 43 dBm VCTL = 0/5 V 0.5–3.0 GHz 50 dBm ΘJC 15 °C/W Control voltages V LOW = 0 to 0.2 V @ 20 µA max. VHIGH = 3 V @ 100 µA max. to 5 V @ 100 µA max. Operating Characteristics at 25 °C VCTL = 0 V/3 V, T = 25° C, PINPUT = 0 dBm, ZO = 50 Ω, unless otherwise noted.

PRELIMINARY DATA SHEET  AS179-000 Skyworks Solutions, Inc.  Phone [781] 376-3000  Fax [781] 376-3100  sales@skyworksinc.com  www.skyworksinc.com 200078 Rev. A  Skyworks Proprietary Information  Products and Product Information are Subject to Change Without Notice.  February 17, 2005 3 Typical Performance Data Insertion Loss vs. Frequency Frequency (GHz) Insertion Loss (dB) -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 J1–J2 J1–J3 VSWR vs. Frequency Frequency (GHz) VSWR 1.0 1.1 1.2 1.3 ILJ2 ILJ2 ILJ3 ILJ3 Isolation vs. Frequency Frequency (GHz) Isolation (dB) -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 Die Outline J2 GND GNDJ3 0.000 0.0024 (0.06 mm) 0.0121 (0.31 mm) 0.0159 (0.40 mm) 0.0183 (0.47 mm) 0.0149 (0.38 mm) 0.0126 (0.32 mm) 0.0220 (0.56 mm) 0.0244 (0.62 mm) 0.0209 (0.53 mm) 0.0098 (0.25 mm) 0.0024 (0.06 mm) 0.000 Bond pad dimensions: 0.0022 (0.06 mm) square. Bond pad metalization: Gold. Backside metalization: None. Dimensions in inches (mm).

Skyworks Solutions, Inc.  Phone [781] 376-3000  Fax [781] 376-3100  sales@skyworksinc.com  www.skyworksinc.com February 17, 2005  Skyworks Proprietary Information  Products and Product Information are Subject to Change Without Notice .  200078 Rev. A PRELIMINARY DATA SHEET  AS179-000 VCTL1 VCTL2 J1–J2 J1–J3 VHIGH 0 Isolation Insertion loss 0V HIGH Insertion loss Isolation 0 0 Not allowed Not allowed VHIGH VHIGH Not allowed Not allowed Truth Table Parameter Description J1 RF Common — RF input/output port that is connected via low impedance path to either RF1 or RF2, depending upon the voltage applied to control voltage pin. External DC block required for positive control voltages. J2,J 3 RF Input/Output — RF input/output port that is connected via low impedance path to either RF common (J 1) or to ground, depending upon the voltage levels applied to Control Voltage pins. External DC block required for positive control voltages. V1,V 2 Control Voltage Inputs — Combination of voltage logic levels applied to these pins determine the state of the RF paths between J1 and J2/J3. GND Ground — Should be down-bonded to circuit ground Port Descriptions Theory of Operation The AS179-000 Single Pole Double Throw (SPDT) switch comprises two RF signal paths, one of which connects the RF common pin (J 1) to RF1 (J 2) and the other connects RF common to RF2 (J 3). Depending upon the logic voltage levels applied to the control voltage pins (V 1 and V2), one of these paths is in its minimum insertion loss state while the other is in its high isolation state. When these logic levels are toggled, the state of each of the paths toggles accordingly. Starting at the RF common pin, each signal path is comprised of a depletion mode PHEMT, Q2 or Q3, in series with the signal path, followed by another depletion mode PHEMT, Q1 or Q4, in shunt with the signal path. A HI logic level applied to the control voltage pin V 1 and a low logic level applied to the control voltage pin V 2 forces the path between RF common and RF1 into its high isolation state and the other path, from RF common to RF2, into its low insertion loss state. The shunt PHEMT to common, Q1 or Q4, is biased to produce minimum impedance when the signal path of which it is part is placed into its isolation state. Consequently, the magnitude of the reflection coefficient looking into this pin is close to 1, that is, the VSWR looking into that port approaches infinity. The AS179-000 can operate with control voltage from 3 V up to 5 V. The logic threshold voltage for the control voltage pin is one half of the minimum high control voltage. The impedance looking into each of the control voltage pins is several tens of kilohms. For positive control voltage, DC blocks are required on each RF port. The AS179-000 SPDT switch can be used in a number of ways: it can be used to select one of two loads, it can also be used to alternately connect an antenna to a radio transmitter and receiver, etc. Transmit Receive Switch A SPDT switch can be used as a transmit-receive (TR) switch, to alternately connect a transmitter and a receiver to a single antenna in a single duplex system. Simplified Block Diagram Control Voltage Control Voltage RF Common (J1) RF1 (J2) RF2 (J3) Q2 Q3 LO IF Output Low Noise Amplifier Downconverter Mixer AS179-000 SPDT TR Switch Power Amplifier Upconverter Mixer IF or BB Input

PRELIMINARY DATA SHEET  AS179-000 Skyworks Solutions, Inc.  Phone [781] 376-3000  Fax [781] 376-3100  sales@skyworksinc.com  www.skyworksinc.com 200078 Rev. A  Skyworks Proprietary Information  Products and Product Information are Subject to Change Without Notice.  February 17, 2005 5 Model Name Operating Temperature Range Ordering Part Number Package Description AS179-000 GaAs SPDT switch -40 °C to +85 °C AS179-000 Wafer on plastic-ring film frame

Ordering Information

Skyworks Solutions, Inc.  Phone [781] 376-3000  Fax [781] 376-3100  sales@skyworksinc.com  www.skyworksinc.com February 17, 2005  Skyworks Proprietary Information  Products and Product Information are Subject to Change Without Notice .  200078 Rev. A PRELIMINARY DATA SHEET  AS179-000 Copyright © 2002, 2003, 2004, 2005, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products. These materials 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. Skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its documentation, products, specifications and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions. THESE MATERIALS ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER 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 SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS 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. 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. The following are trademarks of Skyworks Solutions, Inc.: Skyworks®, the Skyworks logo, and Breakthrough Simplicity®. Product names or services listed in this publication are for identification purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.