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| GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz AA226-87 Features 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 TSSOP-16 PIN 16 0.173 (4.40 mm) 0.004 (0.10 mm) PIN 1 INDICATOR PIN 1 0.197 (5.00 mm) 0.004 (0.10 mm) 0.047 (1.20 mm) MAX. 0.252 (6.4 mm) BSC 0.0256 (0.65 mm) BSC R 0.004 (0.09 mm) MIN. Description 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. 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) Electrical Specifications at -40C to +85C (0, +5 V) Parameter1 Insertion Loss Condition Frequency 0.5-1.0 GHz 1.0-2.0 GHz 2.0-2.5 GHz 0.5-1.0 GHz 1.0-2.5 GHz VSWR (I/O)3 Switching Characteristics4 Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru VS = +3 V VS = +5 V For Two-tone Input Power +5 dBm VS = +3 V VS = +5 V 0.5-2.5 GHz 0.5-2.5 GHz 0.5-2.5 GHz 0.5-2.5 GHz +20 +24 +43 +44 0.5-2.5 GHz Min. Typ. 1.3 1.7 2.3 15 (0.2 + 3% of Attenuation Setting in dB) (0.3 + 4% of Attenuation Setting in dB) 1.5:1 150 300 70 +25 +30 +49 +50 2.0:1 ns ns mV dBm dBm dBm dBm Max. 1.7 2.2 2.6 Unit dB dB dB dB dB dB Attenuation Range Attenuation Accuracy2 Input Power for 1 dB Compression Intermodulation Intercept Point (IP3) Control Voltages VLow = 0 to 0.2 V @ 20 A Max. VHigh = +3 V @ 100 A Max. to +5 V @ 200 A Max. VS = VHigh 0.2 V 3. Input/output. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. 1. All measurements made in a 50 system, unless otherwise specified. 2. Attenuation referenced to insertion loss. Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 9/00A 1 GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz AA226-87 Typical Performance Data (0, +5 V) 0 -0.5 2.50 15 dB 2.25 Insertion Loss (dB) -1.0 2.00 8 dB VSWR -1.5 -2.0 -2.5 -3.0 -3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 +25C +85C -40C 1.75 1.50 1.25 1.00 0 4 dB 2 dB 1 dB Ins. Loss 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 60 58 56 +25C +85C 2.50 VSWR vs. Frequency (25C) 8 dB 2.25 2.00 15 dB 4 dB 1.75 1.50 1.25 1.00 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0.5 1.0 1.5 Ins. Loss 2.0 2.5 3.0 2 dB 1 dB IP3 (dBm) 52 -40C 50 48 46 44 Attenuation (dB) VSWR 54 Frequency (GHz) IP3 vs. Attenuation and Temperature (500 MHz) VSWR vs. Frequency (85C) Compression Point vs. Attenuation, Voltage, and Temperature VSWR Input Power @ 1 dB Compression Attenuation Control State Voltage (V) +25C (dBm) +85C (dBm) -40C (dBm) Ins. Loss 5 31.6 31.0 30.8 1 dB 2 dB 4 dB 8 dB 15 dB 5 5 5 5 5 31.9 31.4 32.7 33.0 30.7 31.5 31.1 31.5 32.8 28.5 31.2 30.9 34.8 33.5 31.7 2.50 15 dB 2.25 8 dB 2.00 1.75 1.50 1.25 1.00 0 0.5 1.0 1.5 Ins. Loss 2.0 2.5 3.0 4 dB 2 dB 1 dB Frequency (GHz) VSWR vs. Frequency (-40C) 2 Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 9/00A GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz AA226-87 1.00 30 15 dB 8 dB 4 dB Deviation from Nominal Attenuation (dB) Deviation from Nominal Insertion Phase (Deg.) 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 0 25 20 15 10 5 0 15 dB 8 dB 2 dB 1 dB 1 dB -5 -10 0 4 dB 0.5 1.0 1.5 2.0 2 dB 0.5 1.0 1.5 2.0 2.5 3.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (25C) 1.00 30 15 dB 8 dB 4 dB 2 dB 1 dB Attenuation Phase Accuracy vs. Frequency (25C) Deviation from Nominal Attenuation (dB) Deviation from Nominal Insertion Phase (Deg.) 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 0 25 20 15 10 5 0 -5 -10 0 15 dB 8 dB 4 dB 2 dB 1 dB 0.5 1.0 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (85C) 1.00 30 15 dB Attenuation Phase Accuracy vs. Frequency (85C) Deviation from Nominal Attenuation (dB) Deviation from Nominal Insertion Phase (Deg.) 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 0 25 20 15 10 5 0 -5 -10 0 15 dB 8 dB 8 dB 4 dB 2 dB 1 dB 4 dB 1 dB 2 dB 0.5 1.0 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency (-40C) Attenuation Phase Accuracy vs. Frequency (-40C) Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 9/00A 3 GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz AA226-87 Typical Performance Data (0, +3 V) 0 1.00 Deviation from Nominal Attenuation (dB) -0.5 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 0 15 dB 8 dB 4 dB 2 dB 1 dB Insertion Loss (dB) -1.0 -1.5 -2.0 -2.5 +85C -3.0 -3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 -40C +25C 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Attenuation Accuracy vs. Frequency (25C) 2.50 15 dB 2.25 8 dB 2.00 1.00 Deviation from Nominal Attenuation (dB) 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 15 dB 8 dB 4 dB 2 dB 1 dB VSWR 4 dB 1.75 1.50 1.25 1.00 0 Ins. Loss 0.5 1.0 1.5 2.0 2.5 3.0 2 dB 1 dB -1.25 0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency (25C) Attenuation Accuracy vs. Frequency (85C) 1.00 30 Deviation from Nominal Phase (Deg.) 20 15 10 5 0 -5 -10 0 8 dB Deviation from Nominal Attenuation (dB) 25 15 dB 0.75 0.50 0.25 0 -0.25 -0.50 -0.75 -1.00 0 15 dB 8 dB 4 dB 2 dB 1 dB 4 dB 2 dB 0.5 1.0 1 dB 1.5 2.0 2.5 3.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (25C) 4 Attenuation Accuracy vs. Frequency (-40C) Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 9/00A GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5-2.5 GHz AA226-87 56 55 54 +85C +25C 53 52 51 50 49 48 47 46 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -40C Compression Point vs. Attenuation, Voltage, and Temperature Input Power @ 1 dB Compression Attenuation Control State Voltage (V) +25C (dBm) +85C (dBm) -40C (dBm) Ins. Loss 3 24.5 24.1 24.6 1 dB 2 dB 4 dB 8 dB 15 dB 3 3 3 3 3 25.2 25.0 31.2 28.3 26.6 24.8 24.3 30.4 26.3 24.8 25.2 24.9 32.8 29.2 27.5 IP3 (dBm) Attenuation (dB) IP3 vs. Attenuation and Temperature (500 MHz) Pin Out CBL 16 J1 Truth Table V1 8 dB VHigh VHigh VHigh VHigh 0 0 V2 4 dB VHigh VHigh VHigh 0 VHigh 0 V3 2 dB VHigh VHigh 0 VHigh VHigh 0 V4 1 dB VHigh 0 VHigh VHigh VHigh 0 Attenuation J1-J2 Reference I.L. 1 dB 2 dB 4 dB 8 dB 15 dB Max. Atten. GND GND V1 V2 V3 V4 GND GND VHigh = +3 to +5 V (VS = VHigh 0.2 V). DC blocking capacitors (CBL) and biasing resistor must be supplied externally for positive voltage operation. CBL = 47 pF for operation >500 MHz. 1 8 dB 2 3 15 14 13 12 GND GND GND GND GND GND VS 10 k 4 dB 4 5 2 dB 6 7 8 11 10 1 dB 9 CBL J2 Absolute Maximum Ratings Characteristic RF Input Power Supply Voltage Control Voltage Operating Temperature Storage Temperature Value 1 W > 500 MHz 0/8 V 0.5 W @ 50 MHz 0/8 V +8 V -0.2 V, +8 V -40C to +85C -65C to +150C Note: Exceeding these parameters may cause irreversible damage. Skyworks Solutions, Inc. [781] 376-3000 * Fax [781] 376-3100 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 9/00A 5 This datasheet has been download from: www..com Datasheets for electronics components. |
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