DATA SHEET AA110-85, AA110-85LF: GaAs IC 5-Bit Digital Attenuator with Driver 1 dB LSB Positive Control DC–2 GHz ● ● ● ● ● ● Functional Block Diagram Attenuation 1 dB steps to 31 dB with high accuracy Single positive control (3 V or 5 V) for each bit Low DC power consumption CMOS integrated silicon driver Designed for use at IF frequencies at input power levels > -10 dBm Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C per JEDEC J-STD-020 VSS 16 dB CTL8 8 dB Description NEW J2 CTL16 CTL4 The AA110-85 is a 5-bit, single positive control GaAs IC FET digital attenuator with driver. It is particularly suited at IF frequencies where high attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include base station, wireless data, broadband and wireless local loop gain control circuits. For low-power applications (< -10 dBm) see part number AA117-85. VDD Parallel Driver Features 4 dB 2 dB CTL2 1 dB CTL1 C1 C2 J1 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 200205 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007 1 DATA SHEET • AA110-85, AA110-85LF Electrical Specifications at -40 °C to +85 °C (VCC = 5 V) Parameter(1) Condition Insertion loss(2) Frequency Min. DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz Attenuation range Typ. Max. Unit 1.4 1.7 2.2 1.7 2.1 2.6 dB dB dB 31 Attenuation accuracy(3) DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz VSWR (I/O)(4) DC–2.0 GHz Switching characteristics Rise, fall On, off Video feedthru 10/90% or 90/10% RF) 50% CTL to 90/10% RF) TRISE = 1 ns, BW = 500 MHz Input power for 1 dB compression VCC = 5 V 0.5–2.0 GHz 0.05 GHz Intermodulation intercept point (IP3) For two-tone input power 5 dBm VCC = 5 V 0.5–2.0 GHz 0.05 GHz Thermal resistance Supply voltage VCC = 5 V @ 750 µA typ., 1 µA max. Control voltages CTL1, CTL2, CTL4, CTL8, CTL16, low = 0 to 0.8 V @ 20 µA typ. CTL1, CTL2, CTL4, CTL8, CTL16, high = 3 to 5 V @ 20 µA typ. dB ± (0.2 + 2% of Attenuation Setting in dB) ± (0.25 + 3% of Attenuation Setting in dB) ± (0.4 + 6% of Attenuation Setting in dB) 1.5:1 dB dB 1.8:1 15 50 50 ns ns mV 22 16 27 20 dBm dBm 40 28 46 34 dBm dBm 85 °C/W 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/°C. 3. Attenuation referenced to insertion loss. 4. Input/output. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 dB April 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200205 Rev. B DATA SHEET • AA110-85, AA110-85LF Typical Performance Data (VCC = 5 V, ZO = 50 Ω) -0.5 1.6 -0.7 1.5 -1.1 4 dB 1.4 16 dB 8 dB Ins. Loss 1 dB -1.3 VSWR Insertion Loss (dB) -0.9 -40 °C -1.5 85 °C -1.7 25 °C 1.3 1.2 -1.9 2 dB -2.1 1.1 -2.3 -2.5 31 dB 1.0 0 0.5 1.0 1.5 2.0 0 0.5 1.5 2.0 Frequency (GHz) Insertion Loss vs. Frequency VSWR vs. Frequency (25 ˚C) 40 1.6 38 1.5 25 °C 36 34 32 16 dB 8 dB 1.4 VSWR IP3 (dBm) 1.0 Frequency (GHz) 1.3 4 dB 2 dB 1.2 Ins. Loss 30 -40 °C 85 °C 1 dB 1.1 31 dB 28 1.0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 0 0.5 1.0 1.5 2.0 Atenuation (dB) Frequency (GHz) IP3 vs. Attenuation and Temperature, Main Bits (50 MHz) VSS = 5 V VSWR vs. Frequency (85 ˚C) Compression Point vs. Attenuation, Voltage, and Temperature 1.6 1.5 Control Voltage (V) 5 1 dB 5 18.1 18.2 17.8 2 dB 5 19.3 19.5 19.2 4 dB 5 16.9 16.9 16.8 8 dB 5 21.3 21.6 22.4 16 dB 5 18.6 17.8 18.5 31 dB Frequency = 50 MHz. 5 21.4 21.1 21.3 16 dB 1.4 VSWR Input Power @ 1 dB Compression 25 °C (dBm) 85 °C (dBm) -40 °C (dBm) 17.2 17.3 19.9 Attenuation State Ins. loss 4 dB 1.3 8 dB 1.2 2 dB 1 dB 1.1 Ins. Loss 31 dB 1.0 0 0.5 1.0 1.5 2.0 Frequency (GHz) VSWR vs. Frequency (-40 ˚C) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200205 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007 3 DATA SHEET • AA110-85, AA110-85LF 60 16 dB 8 dB 0.5 0 50 4 dB Deviation from Nominal Insertion Phase (Deg.) Deviation from Nominal Attenuation (dB) 1.0 2 dB 1 dB -0.5 31 dB -1.0 40 31 dB 30 16 dB 20 8 dB 10 0 -1.5 -10 0 0.5 1.0 1.5 2.0 0 1.0 1.5 Attenuation Accuracy vs. Frequency (25 ˚C) Attenuation Phase Accuracy vs. Frequency (25 ˚C) 60 0 50 4 dB 16 dB 8 dB 0.5 2 dB 1 dB -0.5 -1.0 31 dB 31 dB 40 30 16 dB 20 8 dB 10 0 1 dB -1.5 4 dB 2 dB -10 0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (85 ˚C) Attenuation Phase Accuracy vs. Frequency (85 ˚C) 60 1.0 50 0 4 dB 1 dB Deviation from Nominal Insertion Phase (Deg.) 8 dB 16 dB 0.5 2 dB -0.5 -1.0 31 dB 40 30 16 dB 20 8 dB 10 0 31 dB 4dB 2 dB 1 dB -1.5 -10 0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 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 2.0 Frequency (GHz) Deviation from Nominal Insertion Phase (Deg.) Deviation from Nominal Attenuation (dB) 0.5 Frequency (GHz) 1.0 Deviation from Nominal Attenuation (dB) 4 dB 2 dB 1 dB April 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200205 Rev. B 2.0 DATA SHEET • AA110-85, AA110-85LF Typical Performance Data (VCC = 3 V, ZO = 50 Ω) -0.5 1.0 Deviation from Nominal Attenuation (dB) -0.7 Insertion Loss (dB) -0.9 -1.1 Ins. Loss -1.3 -40 °C -1.5 -1.7 -1.9 85 °C -2.1 16 dB 8 dB 0.5 0 4 dB 2 dB 1 dB -0.5 -1.0 31 dB -2.3 -1.5 -2.5 0 0.5 1.0 1.5 0 2.0 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Attenuation Accuracy vs. Frequency (25 ˚C) 1.0 Deviation from Nominal Attenuation (dB) 1.6 1.5 4 dB 1.4 VSWR 0.5 16 dB 1.3 8 dB 1.2 1 dB Ins. Loss 8 dB 0.5 4 dB 16 dB 0 2 dB 1 dB -0.5 -1.0 1.1 31 dB 2 dB 31 dB 1.0 0 0.5 -1.5 1.0 1.5 0 2.0 1.0 1.5 2.0 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency (25 ˚C) Attenuation Accuracy vs. Frequency (85 ˚C) 60 1.0 Deviation from Nominal Attenuation (dB) 50 Deviation from Nominal Insertion Phase (Deg.) 0.5 31 dB 40 30 16 dB 20 8 dB 10 16 dB 8 dB 0.5 4 dB 0 2 dB 1 dB -0.5 -1.0 0 1 dB 2 dB 31 dB 4 dB -10 -1.5 0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 2.0 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 200205 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007 5 DATA SHEET • AA110-85, AA110-85LF Compression Point vs. Attenuation, Voltage, and Temperature Absolute Maximum Ratings Characteristic Input Power @ 1 dB Compression 25 °C (dBm) 85 °C (dBm) -40 °C (dBm) 16.6 16.6 16.5 Attenuation State Ins. Loss Control Voltage (V) 3 1 dB 3 17.5 17.5 17.5 2 dB 3 18.9 19 18.8 4 dB 3 16.3 16.6 16.3 8 dB 3 20.6 21.1 21.8 16 dB 3 15.5 15.1 16.2 31 dB 3 20.2 19.9 20.1 Frequency = 50 MHz. Truth Table CTL1 CTL2 CTL4 CTL8 CTL16 Attenuation J1–J2 0 0 0 0 0 Ins. loss 1 0 0 0 0 1 dB 0 1 0 0 0 2 dB 0 0 1 0 0 4 dB 0 0 0 1 0 8 dB 0 0 0 0 1 16 dB 1 1 1 1 1 31 dB Value RF input power 2 W > 500 MHz, 0/6 V 0.5 W > 50 MHz, 0/6 V Supply voltage 6V Control voltage(1) -0.2 V, +6 V Operating temperature -40 °C to +85 °C Storage temperature -65 °C to +150 °C 1. Control voltage must not exceed supply voltage. 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 “0” = 0 to 0.8 V (VCC = 5 V). “1” = 3 to 5 V (VCC = 5 V). Refer to the “Recommended Solder Reflow Profile” Application Note. Application Information Tape and Reel Information The control FETs that switch fixed attenuator sections into or out of the main signal path in AA110-85 require negative source voltage (VCC) for proper operation. The AA110-85 includes an internal negative voltage generator with a charge pump. The charge pump oscillator operates at approximately 600 kHz. This signal and its harmonics can couple into the RF signal path, which can degrade signal to noise ratio for frequencies less than approximately 200 MHz. The signal to noise ratio for operation at frequencies above approximately 200 MHz is not affected. Refer to the “Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation” Application Note. For applications where the input signal amplitude is less than -10 dBm and its frequency is less than approximately 200 MHz, the AA117-85 is recommended. This part is identical to AA110-85, but with the internal negative voltage generator circuit disabled. Consequently, an external negative voltage source is required for proper operation. Please refer to the data sheet for AA117-85, available at www.skyworksinc.com. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 April 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200205 Rev. B DATA SHEET • AA110-85, AA110-85LF Pin Descriptions Description Control Voltage 4 – High impedance control voltage input. The logic level voltage applied to this pin determines whether the 4 dB bit is switched into the main signal path or is bypassed. Control Voltage 2 – High impedance control voltage input. The logic level voltage applied to this pin determines whether the 2 dB bit is switched into the main signal path or is bypassed. 19 CTL1 Control Voltage 1 – High impedance control voltage input. The logic level voltage applied to this pin determines whether the 1 dB bit (LSB) is switched into the main signal path or is bypassed. 20 N/C No internal connection. CTL8 Negative Supply CTL16 Capacitor = 0.01 µF VSS C2 11 Control Voltage 8 – High impedance control voltage input. The logic level voltage applied to this pin determines whether the 8 dB bit is switched into the main signal path or is bypassed. CTL2 CTL4 C1 VCC Source Voltage Input – Filter terminal for negative supply voltage. Must be bypassed to commmon via a 0.01 µF, or larger, capacitor. Control Voltage 16 – High impedance control voltage input. The logic level voltage applied to this pin determines whether the 16 dB bit (MSB) is switched into the main signal path or is bypassed. N/C CTL1 12 CTL2 13 18 CTL4 14 17 CTL8 15 16 16 CTL16 17 15 16 dB 10 VCC 8 dB 9 14 Charge Pump Capacitor – Capacitor that accumulates charge to produce negative voltage supply. This capacitor is 0.025 µF, nominal. GND GND J2 4 dB 8 C1, C2 GND 2 dB 7 12, 13 Positive supply voltage input – Must be bypassed to commmon via a 0.01 µF, or larger, capacitor. 18 VCC 19 11 GND GND GND DRIVER Equipotential Point – Internal circuit common, which must be connected to the PCB ground or common via the lowest possible impedance. 6 GND 1 dB 5 2, 3, 4, 5, 6, 7, 8, 9 J1 GND GND 4 RF Input/Output – RF input/output port. 3 J1, J2 2 1, 10 20 Pin Name 1 Pin Number Pin Out Charge Pump Capacitor = 0.025 µF Positive Supply Capacitor = 0.01 µF SSOP-20 Pin 20 0.209 (5.30 mm) ± 0.012 (0.30 mm) Pin 1 Indicator Pin 1 0.069 (1.75 mm) ± 0.004 (0.10 mm) 0.0256 (0.65 mm) BSC 0.012 (0.30 mm) Ref. 0.307 (7.80 mm) ± 0.016 (0.307 mm) 0.283 (7.20 mm) ± 0.012 (0.30 mm) 0.078 (2.00 mm) Max. 0.010 (0.25 mm) 0.004 (0.090 mm) 8˚ Max. 0.008 (0.20 mm) Max. 0.002 (0.05 mm) Min. 0.030 (0.75 mm) ± 0.008 (0.10 mm) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200205 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007 7 DATA SHEET • AA110-85, AA110-85LF 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. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. 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Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 April 30, 2007 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200205 Rev. B