PRELIMINARY DATA SHEET SKY13277-355LF: GaAs SP3T Absorptive Switch 500 MHz–2.5 GHz Features Functional Diagram Positive voltage control (0/3 V typ.) ● High isolation 62 dB at 1 GHz ● Integrated silicon CMOS driver ● Isolated ports are absorptive ● Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260°C per JEDEC J-STD-020 ● J1 RFc J2 J3 Description VCT2 VCT1 Decoder VDD The SKY13277-355LF is a pHEMT GaAs FET IC high isolation absorptive single-pole 3-throw switch packaged in a 20-lead exposed-pad plastic package for low-cost commercial applications. This switch controls signals from 500 MHz to 2.5 GHz. The switch is ideal for cellular base station switch matrices and other applications that require good RF impedance match independent of switch state. The SKY13277-355LF comprises a pHEMT switch die and a Si CMOS controller die. The switch die contains integral terminating resistors that present an absorptive load to the external circuit when the switch path is in its isolation state. The controller die has three inputs: supply voltage (VDD) and two logic control bits that select the state of the pHEMT switch die. External DC block capacitors are required on all RF ports. The SKY13277-355LF operates from -40 °C to 85 °C. A populated evaluation board is available. NEW Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200414 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 5, 2007 1 PRELIMINARY DATA SHEET • SKY13277-355LF Electrical Specifications at 25 °C VDD = 5 V, VCTL = 0/5 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 Ω, unless otherwise noted Parameter Frequency Min. Typ. Max. Unit 0.9 1.1 1.3 1.1 1.3 1.5 dB dB dB Insertion loss 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz Isolation 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 60 53 49 62 57 55 dB dB dB Return loss insertion loss state 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 11 9 8 15 12 11 dB dB dB Return loss isolation state 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 11 10 8 15 14 13 dB dB dB Min. Typ. Operating Characteristics at 25 °C VDD = 5 V, VCTL = 0/5 V, T = 25 C, PINPUT = 0 dBm, Z0 = 50 Ω, unless otherwise noted Parameter Switching characteristics Rise/fall time On/off time Condition Frequency 10/90% or 90/10% RF 50% VCTL to 90/10% RF Max. 5 15 Unit ns ns Input power for 1 dB compression VDD = 5 V 0.5–2.5 GHz 30 dBm Intermodulation Intercept Point (IP3) For two tone input power 13 dBm/tone 1 MHz spacing, VDD = 5 V 0.5–2.5 GHz 43 dBm Control voltages VCTLLOW VCTLHIGH Supply voltage (VDD) Supply currents VDD = 3 V VCTLLOW, VCTLHIGH 0 2.4 0.5 VDD V V 2.75 5.5 V 5 5 1. VDD must be powered on prior to a VCTL high signal. A latch up condition may occur if a logic high signal is applied prior to the VDD voltage. 2. Control voltages switch the VDD voltage to the GaAs switch. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 October 5, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200414 Rev. C uA uA PRELIMINARY DATA SHEET • SKY13277-355LF Typical Performance Data VDD = 5 V, VCTL = 0/5 V, T = 25 C, PINPUT = 0 dBm, CBLOCK = 47 pF, Z0 = 50 Ω, unless otherwise noted RFc-J1 0 RFc-J2 RFc-J3 -0.2 -0.6 Isolation (dB) Insertion Loss (dB) -0.4 -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.5 2.0 2.5 3.0 Typical Insertion Loss Typical Isolation RFc-J1 Ins. state RFc-J3 1.0 1.5 2.0 2.5 RFc-J1 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 3.0 0 0.5 RFc-J2 1.0 1.5 2.0 2.5 Frequency (GHz) Typical Isolation RFc-J2 Ins. state Typical Isolation RFc-J3 Ins. state J1 Output J2 Output J3 Output J1 Output 0 J2 Output 3.0 J3 Output -5 Return Loss (dB) -5 Return Loss (dB) 1.0 Frequency (GHz) RFc 0 0.5 Frequency (GHz) RFc-J1 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 0 3.0 RFc-J3 Frequency (GHz) Isolation (dB) Isolation (dB) 0 RFc-J2 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -10 -15 -20 -10 -15 -20 -25 -25 -30 -30 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Typical Return Loss Ins. State Typical Return Loss Isolation States Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200414 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 5, 2007 3 PRELIMINARY DATA SHEET • SKY13277-355LF Absolute Maximum Ratings Truth Table Characteristic Value VCT1 VCT2 RFC to J1 RFC to J2 RFC to J3 32 dBm, f > 500 MHz 0 0 Insertion loss Isolation Isolation 2.75 < VDD < 5.5 V 1 0 Isolation Insertion loss Isolation Operating temperature -40 °C to +85 °C 0 1 Isolation Isolation Insertion loss Storage temperature -65 °C to +150 °C 1 1 Undefined Undefined Undefined RF input power @ 5.5 V VDD voltage range 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 ratings. Exceeding any of the absolute maximum/minimum ratings may result in permanent damage to the device and will void the warranty. “0” = 0 to 0.5 V. “1” = 2.4 to VDD. VDD = 2.75 to 5.5 V. 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. Recommended Solder Reflow Profiles Tape and Reel Information Refer to the “Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation” Application Note. 16 GND 17 GND 18 RFc Pin Descriptions 19 GND 20 GND Pin Out (Top View) Refer to the “Recommended Solder Reflow Profile” Application Note. Pin Number 1, 2, 4, 5, 6, 8, 9, 14-17, 19, 20 Pin Name Gnd Description 3 J3 RF port, must be DC blocked Ground GND 1 15 GND 7 J2 RF port, must be DC blocked GND 2 14 GND 10 VDD DC bias for decoder 13 J1 11 VCT1 DC logic pin GND 4 12 VCT2 12 VCT2 DC logic pin GND 5 11 VCT1 13 J1 RF port, must be DC blocked 18 RFc RF common port, must be DC blocked Exposed Paddle Paddle VDD 10 GND 9 GND 8 7 J2 GND 6 J3 3 Ground DC blocks are required on RFc, J1, J2, J3. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 October 5, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200414 Rev. C PRELIMINARY DATA SHEET • SKY13277-355LF QFN-20 (5 x 5 mm) Evaluation Board 0.20 Ref Seating Plane 5.00 0.02 + 0.03 0.02 - 0.02 Pin 1 Indicator 5.00 Top View 0.90 ± 0.10 3.15 + 0.10 3.15 - 0.015 20X 0.55 ± 0.10 1.575 + 0.05 1.575 - 0.075 0.65 3.15 + 0.10 3.15 - 0.015 Part Marking PIN 1 INDICATOR 20X 0.30 ± 0.05 Bottom View SKYWORKS P/N S277 XXXX YWW Dimensions in mm. LOT # DATE CODE Y= CALENDAR YEAR WW= WEEK Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200414 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 5, 2007 5 PRELIMINARY DATA SHEET • SKY13277-355LF Copyright © 2002, 2003, 2004, 2005, 2006, 2007, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 October 5, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200414 Rev. C