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DATA SHEET
SKY13298-360LF: GaAs SP2T Switch for Ultra Wideband (UWB) 3-8 GHz
Features
G G G G
Functional Block Diagram
RFc
Positive voltage control (0/1.8 V to 0/3.3 V) High isolation 25 dB for BG1, 25 dB for BG3 Low loss 0.7 dB typical for BG1, 0.9 dB for BG3 Lead (Pb)-free and RoHS-compliant
J2
J1
Description
The SKY13298-360LF is a pHEMT GaAs FET IC switch packaged in an 2 x 2 mm, 8-lead exposed pad plastic package for low-cost commercial applications. The use of the VBIAS line enables the part to be used with low control bias voltages down to 1.8 V. This switch is ideal for Ultra Wide Band (UWB) applications covering BG1 and BG3. For 3.3 V control, the VBIAS is not required and is left open circuit on the board.
VBIAS
VCTL1
VCTL2
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging.
Electrical Specifications
VBIAS = 1.8 V, VCTL = 0 V/1.8 V, T = 25 C, PINPUT = 0 dBm, ZO = 50 , unless otherwise noted
Parameter Insertion Loss Isolation Return loss (Insertion loss state) Frequency 3.168-4.752 GHz 6.336-7.920 GHz 3.168-4.752 GHz 6.336-7.920 GHz 3.168-4.752 GHz 6.336-7.920 GHz Min. Typ. 0.7 0.9 25 22 25 12 Max. 0.9 1.0 Unit dB dB dB dB dB dB
22 19
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200797 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * July 28, 2008
1
DATA SHEET * SKY13298-360LF
Operating Characteristics
VBIAS = 1.8 V, VCTL = 0 V/1.8 V, T = 25 C, PINPUT = 0 dBm, ZO = 50 , unless otherwise noted
Parameter Switching characteristics Rise/fall time On/off time Input power for 1 dB compression Condition 10/90% or 90/10% RF 50% VCTL to 90/10% RF VBIAS = 1.8 V, VCTL = 0 V/1.8 V VBIAS = 1.8 V, VCTL = 0 V/1.8 V VBIAS = open circuit, VCTL = 0 V/3.3 V VBIAS = open circuit, VCTL = 0 V/3.3 V For two tone input power 5 dBm/tone 1 MHz spacing, VBIAS = 1.8 V, VCTL = 0 V/1.8 V 3.168-4.752 GHz 6.336-7.920 GHz 3.168-4.752 GHz 6.336-7.920 GHz Frequency Min. Typ. 20 20 18 16 26 24 Max. Unit ns ns dBm dBm dBm dBm
Intermodulation intercept point (IP3)
3.168-4.752 GHz 6.336-7.920 GHz 3.168-4.752 GHz 6.336-7.920 GHz 0 1.8 1.8
39 34 47 42 0.2 3.3 3.3 5 5
dBm dBm
VBIAS = O/C, VCTL = 0 V/3.3 V Control voltages Supply voltage Supply currents VCTL LOW VCTL HIGH = VBIAS VBIAS VBIAS = 1.8 to 3.3 V VCTL LOW, VCTL HIGH
V V V A A
Truth Table
VBIAS 1 1 VCTL1 1 0 VCTL2 0 1 RFc-J1 Insertion loss Isolation RFc-J2 Isolation Insertion loss
Absolute Maximum Ratings
Characteristic VBIAS voltage range RF input power @ 3 V Operating temperature Storage temperature Value 1.8 < VBIAS < 5 V 27 dBm -40 C to +85 C -65 C to +150 C
"1"= 1.8 to 3.3 V. "0"= 0 V. For "1" > 3 V, VBIAS is not necessary and may be left open ckt. Any state other than described in the truth table will put the switch in an undefined state.
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.
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.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
July 28, 2008 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200797 Rev. C
DATA SHEET * SKY13298-360LF
Typical Performance Data
VBIAS = 1.8 V, VCTL = 0 V/1.8 V, and VBIAS = Open Circuit, VCTL = 0 V/3.3 V, T = 25 C, PINPUT = 0 dBm, ZO = 50 , CBLK = 15 pF, CBP = 33 pF unless otherwise noted
RFc_J1 1.8 V RFc_J2 3.3 V BG3 lower freq 0 -0.2 -0.4 RFc_J2 1.8 V BG1 lower freq BG3 upper freq RFc_J1 3.3 V BG1 upper freq 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 RFc_J1 1.8 V RFc_J2 3.3 V BG3 lower freq RFc_J2 1.8 V BG1 lower freq BG3 upper freq RFc_J1 3.3 V BG1 upper freq
Insertion Loss (dB)
-0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0
Frequency (GHz)
Isolation (dB)
-0.6
Frequency (GHz)
Typical Insertion Loss
RFc 1.8 V RFc 3.3 V BG1 lower freq BG3 upper freq 0 -5 -10 J1 1.8 V J1 3.3 V BG1 upper freq J2 1.8 V J2 3.3 V BG3 lower freq J1-J2 1.8 V
Typical Isolation
J1-J2 3.3 V BG3 lower freq BG1 lower freq BG3 upper freq
BG1 upper freq 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 0 1 2 3
Return Loss (dB)
-15 -20 -25 -30 -35 -40 -45 -50 0 1 2 3 4 5 6 7 8 9 10
Isolation (dB)
4
5
6
7
8
9
10
Frequency (GHz)
Frequency (GHz)
Typical J1-J2 Isolation
Return Loss (Ins. Loss state)
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200797 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * July 28, 2008
3
DATA SHEET * SKY13298-360LF
Pin Out (Top View)
J1 1 8 VCTL1
Pin Descriptions
Pin Number 1 Pin Name J1 Bias Gnd J2 VCTL2 N/C RFc VCTL1 Paddle RF port VBIAS Gnd RF port DC control voltage No connect RF common port DC control voltage Must be connected to RF ground Description
Bias
2
7
RFc
2 3
GND
3
6
N/C
4
J2 4 5 VCTL2
5 6
DC blocks are required on RFc, J1, J2. CBLK = 15 pF for UWB band operation.
7 8
Evaluation Board
CBP = 33 pF Caps 2 Places
Exposed paddle
Suggested Land Pattern
R 0.20 Pin 1 8X 0.25 8X 0.70 8X 0.45
0.50 Pitch
0.25 2X 0.85
CBLK = 15 pF Caps 3 Places
QFN 8L 2 x 2 mm Package
0.20 Ref. Seating Plane 2 Pin 1 Indicator 2
2X 0.45
Exposed Soldering Area Typ.
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
Tape and Reel Information
0.90 0.10 0.90 + 0.10 0.90 - 0.15 0.45 + 0.05 0.45 - 0.07 Exposed Pad 0.50 0.25 + 0.05 0.25 - 0.07 0.30 + 0.01 0.85 + 0.05 0.85 - 0.07 1.70 + 0.10 1.70 - 0.15
Refer to the "Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation" Application Note.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
July 28, 2008 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200797 Rev. C
DATA SHEET * SKY13298-360LF
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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200797 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * July 28, 2008
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