DATA SHEET AA226-87, AA226-87LF: GaAs IC 4-Bit Digital Attenuator, 1 dB LSB LF–2.5 GHz Features ● ● 16 V3 V4 4 dB 2 dB GND 12 14 V2 13 15 GND GND 6 11 GND GND 7 10 GND GND 8 1 dB VS 9 NEW GND V1 5 The AA226-87 is a 4-bit, single positive control GaAs IC FET digital attenuator. It requires DC blocking capacitors, positive supply voltage (VS) and four individual positive bit control voltages (V1–V4). The AA226-87 is particularly suited where high attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include base station, wireless data and wireless local loop gain control circuits. 8 dB 4 Description GND 3 ● GND 2 ● J1 CBL 1 ● Pin Out Attenuation 1 dB steps to 15 dB with high accuracy Single positive control (3 to 5 V) for each bit Low DC power consumption Small low-cost TSSOP-16 plastic package Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C per JEDEC J-STD-020 10 kΩ CBL J2 DC blocking capacitors (CBL) and biasing resistor must be supplied externally for positive voltage operation. CBL = 47 pF for operation >500 MHz. 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 200212 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2006 1 DATA SHEET • AA226-87, AA226-87LF Electrical Specifications at -40 °C to +85 °C (0, 5 V) Parameter(1) Condition Insertion loss Frequency Min. 0.5–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz Attenuation range Typ. Max. Unit 1.3 1.7 2.3 1.7 2.2 2.6 dB dB dB 15 Attenuation accuracy(2) 0.5–1.0 GHz 1.0–2.5 GHz VSWR (I/O)(3) 0.5–2.5 GHz Switching characteristics Rise, fall On, off Video feedthru dB ± (0.2 + 3% of Attenuation Setting in dB) ± (0.3 + 4% of Attenuation Setting in dB) 1.5:1 10/90% or 90/10% RF 50% CTL to 90/10% RF TRISE = 1 ns, BW = 500 MHz dB dB 2.0:1 150 300 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 24 25 30 dBm dBm Intermodulation intercept point (IP3) For two-tone input power 5 dBm VS = 3 V VS = 5 V 0.5–2.5 GHz 0.5–2.5 GHz 43 44 49 50 dBm dBm Control voltages VLOW = 0 to 0.2 V @ 20 µA max. VHIGH = 3 V @ 100 µA max. to 5 V @ 200 µA max. VS = VHIGH ± 0.2 V 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Attenuation referenced to insertion loss. 3. Input/output. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 June 8, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200212 Rev. B DATA SHEET • AA226-87, AA226-87LF Typical Performance Data (0, 5 V) 0 2.50 15 dB 2.25 8 dB -1.0 2.00 -1.5 -40 °C 25 °C -2.0 VSWR Insertion Loss (dB) -0.5 85 °C 2 dB 1.50 -2.5 -3.0 1.25 -3.5 1.00 0 0.5 1.0 1.5 4 dB 1.75 2.0 2.5 Ins. Loss 0 3.0 1 dB 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency VSWR vs. Frequency (25 ˚C) 3.0 2.50 60 8 dB 58 2.25 25 °C 15 dB 56 2.00 54 VSWR IP3 (dBm) 85 °C 52 -40 °C 4 dB 1.75 2 dB 1 dB 50 1.50 48 1.25 46 Ins. Loss 1.00 44 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.5 1.0 1.5 2.0 2.5 Attenuation (dB) Frequency (GHz) IP3 vs. Attenuation and Temperature (500 MHz) VSWR vs. Frequency (85 ˚C) Compression Point vs. Attenuation, Voltage, and Temperature Control Voltage (V) 5 1 dB 5 31.9 31.5 31.2 2 dB 5 31.4 31.1 30.9 4 dB 5 32.7 31.5 34.8 8 dB 5 33 32.8 33.5 15 dB 5 30.7 28.5 31.7 2.50 15 dB 2.25 8 dB 2.00 VSWR Input Power @ 1 dB Compression 25 °C (dBm) 85 °C (dBm) -40 °C (dBm) 31.6 31 30.8 Attenuation State Ins. loss 3.0 4 dB 1.75 2 dB 1 dB 1.50 1.25 Ins. Loss 1.00 0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) VSWR vs. Frequency (-40 ˚C) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200212 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2006 3 DATA SHEET • AA226-87, AA226-87LF 30 1.00 15 dB 0.50 0.25 4 dB 0 -0.25 2 dB -0.50 1 dB 15 10 5 0 1 dB 0 0.5 1.0 1.5 2.0 2.5 0 3.0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (25 ˚C) Attenuation Phase Accuracy vs. Frequency (25 ˚C) 3.0 30 1.00 15 dB 0.75 Deviation from Nominal Insertion Phase (Deg.) 8 dB 0.50 4 dB 0.25 15 dB 25 2 dB 1 dB 0 -0.25 -0.50 8 dB 20 15 10 4 dB 2 dB 1 dB 5 0 -5 -0.75 -10 -1.00 0 0.5 1.0 1.5 2.0 2.5 0 3.0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (85 ˚C) Attenuation Phase Accuracy vs. Frequency (85 ˚C) 3.0 30 1.00 15 dB 8 dB 0.50 4 dB 0.25 15 dB 25 Deviation from Nominal Insertion Phase (Deg.) 0.75 2 dB 1 dB 0 -0.25 -0.50 8 dB 20 15 10 2 dB 1 dB 4 dB 5 0 -5 -0.75 -10 -1.00 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (-40 ˚C) Attenuation Phase Accuracy vs. Frequency (-40 ˚C) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 2 dB 4 dB -10 -1.00 Deviation from Nominal Attenuation (dB) 8 dB 20 -5 -0.75 Deviation from Nominal Attenuation (dB) 15 dB 25 8 dB Deviation from Nominal Insertion Phase (Deg.) Deviation from Nominal Attenuation (dB) 0.75 June 8, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200212 Rev. B 3.0 DATA SHEET • AA226-87, AA226-87LF 0 1.00 -0.5 0.75 Deviation from Nominal Attenuation (dB) Insertion Loss (dB) Typical Performance Data (0, 3 V) -1.0 -40 °C -1.5 25 °C -2.0 -2.5 85 °C -3.0 4 dB 0.25 2 dB 1 dB 0 -0.25 -0.50 -1.00 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Attenuation Accuracy vs. Frequency (25 ˚C) 2.50 2.5 3.0 1.00 15 dB Deviation from Nominal Attenuation (dB) 8 dB 2.00 4 dB 1.75 2 dB 1 dB 1.50 1.25 0 0.5 8 dB 0.50 4 dB 0.25 2 dB 1 dB 0 -0.25 -0.50 -0.75 -1.00 Ins. Loss 1.00 15 dB 0.75 2.25 VSWR 8 dB 0.50 -0.75 -3.5 1.0 1.5 2.0 2.5 -1.25 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency (25 ˚C) Attenuation Accuracy vs. Frequency (85 ˚C) 1.00 30 15 dB 25 20 15 10 4 dB 5 0 1 dB 2 dB -5 15 dB 0.75 8 dB Deviation from Nominal Attenuation (dB) Deviation from Nominal Phase (Deg.) 15 dB 8 dB 0.50 4 dB 0.25 2 dB 1 dB 0 -0.25 -0.50 -0.75 -1.00 -10 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) Attenuation Phase Accuracy vs. Frequency (25 ˚C) Attenuation Accuracy vs. Frequency (-40 ˚C) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200212 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2006 5 DATA SHEET • AA226-87, AA226-87LF Compression Point vs. Attenuation, Voltage, and Temperature 56 55 54 85 °C IP3 (dBm) 53 52 25 °C 51 50 49 -40 °C 48 47 Input Power @ 1 dB Compression 25 °C (dBm) 85 °C (dBm) -40 °C (dBm) 24.5 24.1 24.6 Attenuation State Ins. loss Control Voltage (V) 3 1 dB 3 25.2 24.8 25.2 2 dB 3 25 24.3 24.9 4 dB 3 31.2 30.4 32.8 8 dB 3 28.3 26.3 29.2 15 dB 3 26.6 24.8 27.5 46 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Attenuation (dB) Absolute Maximum Ratings IP3 vs. Attenuation and Temperature (500 MHz) Characteristic Truth Table 1 W > 500 MHz 0/8 V 0.5 W @ 50 MHz 0/8 V Supply voltage 8V Control voltage V1 V2 V3 V4 8 dB 4 dB 2 dB 1 dB Attenuation J1–J2 VHIGH VHIGH VHIGH VHIGH Reference I.L. VHIGH VHIGH VHIGH 0 1 dB VHIGH VHIGH 0 VHIGH 2 dB VHIGH 0 VHIGH VHIGH 4 dB 0 VHIGH VHIGH VHIGH 8 dB 0 0 0 0 15 dB max. atten. VHIGH = 3 to 5 V (VS = VHIGH ± 0.2 V). TSSOP-16 Pin 16 0.173 (4.40 mm) ± 0.004 (0.10 mm) 0.0256 (0.65 mm) BSC -0.2 V, +8 V Operating temperature -40 °C to +85 °C Storage temperature -65 °C to +150 °C 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. 0.252 (6.4 mm) BSC Pin 1 Indicator Pin 1 Value RF input power Recommended Solder Reflow Profiles Refer to the “Recommended Solder Reflow Profile” Application Note. 0.197 (5.00 mm) ± 0.004 (0.10 mm) 0.047 (1.20 mm) Max. R 0.004 (0.09 mm) Min. Tape and Reel Information Refer to the “Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation” Application Note. 0.009 (0.22 mm) Ref. 0.035 (0.90 mm) + 0.006 (0.15 mm) / -0.004 (-0.10 mm) 0.006 (0.15 mm) Max. 0.002 (0.05 mm) Min. 0.024 (0.60 mm) ± 0.006 (0.15 mm) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 June 8, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200212 Rev. B DATA SHEET • AA226-87, AA226-87LF Copyright © 2002, 2003, 2004, 2005, 2006, Skyworks Solutions, Inc. All Rights Reserved. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200212 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2006 7