DATA SHEET AA116-72LF: 4 MHz-2 GHz 1-Bit Digital Attenuator (15 dB LSB) Applications J1 Cellular radio Wireless data systems WLL gain level control circuits 15 dB Features 3 V control Low loss J2 S2182 Small SOT-5 package (MSL1, 260 C per JEDEC J-STD-020) Figure 1. AA116-72LF Block Diagram Skyworks offers lead (Pb)-free RoHS (Restriction of Hazardous Substances) compliant packaging. Description The AA116-72LF is a one-bit GaAs FET digital attenuator in a lowcost SOT-5 package. The device has a Least Significant Bit (LSB) of 15 dB and is particularly suited where high attenuation accuracy, low insertion loss, and low intermodulation products are required. V1 1 2 3 J2 4 RF_GND 5 J1 V2 A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. S2183 Figure 2. AA116-72LF Pinout – 5-Pin SOT-5 (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200209E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 5, 2010 1 DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR Table 1. AA116-72LF Signal Descriptions Pin # 1 Name J1 Description Pin # Name Description RF port. Must be DC blocked. 4 V1 DC control bias 5 V2 DC control bias 2 RF_GND RF ground. Must be AC-coupled to ground. 3 J2 RF port. Must be DC blocked. Table 2. AA116-72LF Absolute Maximum Ratings Parameter RF input power Symbol Minimum PIN Maximum Units 1 W > 500 MHz 0/8 V dBm 0.5 W @ 50 MHz 0/8 V dBm 8 V Supply voltage VS Control voltage VCTL –0.2 +8.0 V Operating temperature TOP –40 +85 C Storage temperature TSTG –65 +150 C Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. 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 potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Electrical and Mechanical Specifications The absolute maximum ratings of the AA116-72LF are provided in Table 2. Electrical specifications are provided in Table 3. The state of the AA116-72LF is determined by the logic provided in Table 4. Typical performance characteristics of the AA116-72LF are illustrated in Figures 3 through 6. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 October 5, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200209E DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR Table 3. AA116-72LF Electrical Specifications (Note 1) (VCTL = 0 to 3 V, TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter Insertion loss (Note 2) Symbol IL Test Condition Min 0.004 to 0.05 GHz 0.5 to 1.00 GHz 0.85 to 0.94 GHz 1.00 to 2.00 GHz Attenuation range Typical Max Units 0.35 0.35 0.30 0.40 0.45 0.45 0.38 0.50 dB dB dB dB 15 14.0 14.0 14.5 14.6 15.0 15.0 dB dB dB dB 16.0 16.0 15.5 Attenuation accuracy (Note 3) 0.004 to 0.05 GHz 0.50 to 2.00 GHz 0.85 to 0.94 GHz Return loss 0.004 to 0.05 GHz 0.50 to 1.00 GHz 30 24 dB dB 10/90% or 90/10% RF 50% VCTL to 90/10% RF TRISE = 1 ns, bandwidth = 500 MHz 40 50 ns ns 70 mV +12 +20 +26 dBm dBm dBm +41 +45 dBm dBm Switching characteristics (Note 4): Rise/fall On/off Video feedthrough 1 dB Input Compression Point IP1dB 4 to 50 MHz, VS = 5 V 0.5 to 2.5 GHz, VS = 3 V 0.5 to 2.5 GHz, VS = 5 V 3rd Order Input Intercept Point IIP3 For two-tone input power, +10 dBm/tone, 0.5 to 2.5 GHz VS = 3 V VS = 5 V Control voltages VCTL +9 VLOW = 0 to 0.2 V VHIGH = 3 V @ 25 μA typical to 5 V @ 50 μA typical Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2: Insertion loss changes by 0.003 dB/°C. Note 3: Maximum attenuation includes insertion loss. Note 4: Switching characteristics will vary with the value chosen for the blocking capacitors. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200209E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 5, 2010 3 DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR Typical Performance Characteristics 0 0 –0.1 –4 –0.2 –8 –0.3 –12 Return Loss (dB) Insertion Loss (dB) (VCTL = 0 to 3 V, TOP = +25 C, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) –0.4 –0.5 –0.6 –0.7 –16 –20 –24 –28 –0.8 –32 –0.9 –1.0 –36 –40 0.2 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.4 0.6 Frequency (GHz) 1.2 1.4 1.6 0 0 –2 –4 –4 –8 –6 –8 –10 –12 –14 2.0 –12 –16 –20 –24 –28 –16 –32 –18 –36 –40 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Frequency (GHz) Figure 5. Attenuation vs Frequency 1.8 2.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Frequency (GHz) Figure 6. Return Loss in Attenuation State vs Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 1.8 Figure 4. Return Loss in Insertion Loss State vs Frequency Return Loss (dB) Attenuation (dB) 1.0 Frequency (GHz) Figure 3. Insertion Loss vs Frequency –20 0.2 0.8 October 5, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200209E DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR Table 4. AA116-72LF Truth Table J1 to J2 Insertion loss Attenuation Note: V1 (Pin 4) V2 (Pin 5) VHIGH 0 0 VHIGH VHIGH = +3 V to +5 V All other conditions not recommended. Evaluation Board Description Package and Handling Information The AA116-72LF Evaluation Board is used to test the performance of the AA116-72LF digital attenuator. An assembly drawing for the Evaluation Board is shown in Figure 7 and an Evaluation Board schematic diagram is shown in Figure 8. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. Package Dimensions The PCB layout footprint for the AA116-72LF is shown in Figure 9. Typical case markings are noted in Figure 10. Package dimensions for the 5-pin SOT-5 are shown in Figure 11, and tape and reel dimensions are provided in Figure 12. THE AA116-72LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200209E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 5, 2010 5 DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR J2 J1 C1 C3 C2 V1 V2 S2184 Figure 7. AA116-72LF Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 October 5, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200209E DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR CBL J1 CBP CBL J2 1 2 3 J1 V2 5 Switch Control (See Table 4) RF_GND 4 J2 V1 Switch Control (See Table 4) Note: CBL = 33 pF, CBP = 39 pF for 900 MHz operation. CBL = 100 nF, CBP = 100 nF for 0.004 to 0.05 GHz operation. S2185 Figure 8. AA116-72LF Evaluation Board Schematic Diagram *** TBD *** Figure 9. AA116-72LF PCB Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200209E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 5, 2010 7 DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR 5 4 4 Skyworks Part # 5 A116 1 Lot # XXXX 2 3 3 2 Top 1 Bottom Figure 10. Typical Part Markings 0.074 (1.90 mm) Ref. 5 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) 4 2 0.069 (1.75 mm) 0.052 (1.30 mm) 0.118 (3.00 mm) 0.087 (2.20 mm) 3 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. Dimensions are in inches (millimeters shown in parentheses) S1657 Figure 11. AA116-72LF 5-Pin SOT-5 Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 October 5, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200209E DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR ∅1.50+ 0.10/–0.00 4.00 ± 0.10 4.00 (see Note 4) 2.00 ± 0.05 1.75 ± 0.10 Pin #1 A 8.00 +0.30/–0.10 3.20 ± 0.10 (Bo) A 3.50 ± 0.05 B 1.40 ± 0.10 (Ko) B B ∅1.00 Min. 0.20 ± 0.03 R0.30 Typ 3.15 ± 0.10 (Ao) A Notes: 1. Carrier tape: black conductive polystyrene. 2. Cover tape material: transparent conductive HSA. 3. Cover tape size: 5.40 mm width. 4. Ten sprocket hole pitch cumulative tolerance = ±0.20 mm. 5. All measurements are in millimeters. 6. Standard reel size is 7 inches. Standard reel quantity is 3000 pcs. S1681 Figure 12. AA116-72LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200209E • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 5, 2010 9 DATA SHEET • AA116-72LF 1-BIT DIGITAL ATTENUATOR Ordering Information Model Name AA116-72LF 1-Bit Digital Attenuator Manufacturing Part Number AA116-72LF Evaluation Board Part Numbers AA116-72LF-EVB Copyright © 2002-2008, 2010 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. 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