DATA SHEET AA103-72, AA103-72LF: GaAs IC 1-Bit Digital Attenuator 10 dB LSB LF–2.5 GHz Features ● V1 10 CBP 3 J2 4 ● RF GND V2 CBL 2 ● J1 5 ● 1 ● Pin Out Attenuation cutback of 10 dB Single positive 3 V control Low loss Low-cost SOT-5 plastic package Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C per JEDEC J-STD-020 CBL 10 kΩ VS Description The AA103-72 is a 1-bit GaAs IC FET digital attenuator in a lowcost package. This attenuator has an LSB of 10 dB. The AA103-72 is particularly suited where high attenuation accuracy, low insertion loss, and low intermodulation products are required. Typical applications include cellular radio, wireless data, and wireless local loop gain level control circuits. NEW DC blocking capacitors (CBL), bypass capacitor (CBP), and biasing resistor must be supplied externally for positive voltage operation. CBL, CBP = 33 pF for operation @ 900 MHz. Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances)-compliant packaging. Electrical Specifications at 25 °C (0, 3 V) Parameter(1) Insertion loss(2) Frequency LF–0.5 GHz LF–1.0 GHz LF–2.5 GHz Attenuation range Attenuation Min. Typ. Max. Unit 0.3 0.3 0.4 0.5 0.6 0.7 dB dB dB 10 accuracy(3) LF–1.0 GHz LF–2.5 GHz VSWR (I/O) LF–2.5 GHz dB ± (0.25 + 3% of Attenuation setting) ± (0.4 + 5% of Attenuation setting) 1.2:1 dB dB 1.4:1 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/°C. 3. Maximum attenuation includes insertion loss. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200199 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007 1 DATA SHEET • AA103-72, AA103-72LF Operating Characteristics at 25 °C (0, 3 V) Parameter Condition Switching characteristics(1) Rise, fall On, off Video feedthru Frequency Min. 10/90% or 90/10% RF 50% CTL to 90/10% RF TRISE = 1 ns, BW = 500 MHz Typ. Max. Unit 150 300 70 ns ns mV Input power for 1 dB compression VS = 3 V VS = 5 V 0.5–2.5 GHz 0.5–2.5 GHz 20 26 dBm dBm Intermodulation intercept point (IP3) For two-tone input power 10 dBm VS = 3 V VS = 5 V 0.5–2.5 GHz 0.5–2.5 GHz 41 45 dBm dBm Control voltages VLOW = 0 to 0.2 V VHIGH = 3 V @ 25 µA typ. to 5 V @ 50 µA typ. 1. Switching characteristics will vary with value chosen for CBP. 1.0 1.8 0.9 1.7 0.8 1.6 0.7 1.5 0.6 VSWR Insertion Loss (S21, dB) Typical Performance Data (0, 3 V) 0.5 0.4 1.4 1.3 0.3 1.2 0.2 1.1 0.1 0 1.0 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency VSWR vs. Frequency 2.0 13 Attenuation (S21, dB) 12 11 10 9 8 7 0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Attenuation vs. Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 April 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200199 Rev. B 2.5 DATA SHEET • AA103-72, AA103-72LF Absolute Maximum Ratings Characteristic RF input power Truth Table Value V1 1 W > 500 MHz 0/8 V 0.5 W @ 50 MHz 0/8 V Supply voltage 8V Control voltage -0.2 V, +8 V Operating temperature -40 °C to +85 °C Storage temperature -65 °C to +150 °C V2 J1–J2 VHIGH 0 Insertion Loss 0 VHIGH Attenuation All other conditions not recommended. VHIGH = 3 to 5 V (VS = VHIGH ± 0.2 V). SOT-5 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. Recommended Solder Reflow Profiles Refer to the “Recommended Solder Reflow Profile” Application Note. 0.074 (1.90 mm) Ref. 0.069 (1.75 mm) 0.052 (1.30 mm) Pin 1 0.020 (0.51 mm) 0.014 (0.35 mm) 0.012 (0.30 mm) 0.000 (0.00 mm) Min. 0.064 (1.63 mm) 0.035 (0.90 mm) 0.122 (3.10 mm) 0.106 (2.70 mm) 0.118 (3.00 mm) 0.087 (2.20 mm) 0.037 (0.95 mm) Ref. 0.012 (0.30 mm) Typ. 0.024 (0.61 mm) 0.004 (0.10 mm) 0.0104 (0.26 mm) 0.0035 (0.09 mm) Min. Tape and Reel Information 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 • [email protected] • www.skyworksinc.com 200199 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007 3 DATA SHEET • AA103-72, AA103-72LF 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. 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. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 April 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200199 Rev. B