AA105-86

AA105-86 ALPHA | Alldatasheet

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Technical content

Features

I Attenuation 1 dB Steps to 15 dB with High Accuracy I Single Positive Control (+3 to +5 V) for Each Bit I Low DC Power Consumption I Miniature Low Cost MSOP-10 Plastic Package MSOP-10 AA105-86 PIN 10 PIN 1 PIN 1 INDICATOR 0.034 (0.86 mm) ± 0.004 (0.10 mm) 0.118 (3.00 mm) ± 0.006 (0.15 mm) 0.193 (4.90 mm) ± 0.006 (0.15 mm) 0˚–6˚ 8˚–16˚ 0.118 (3.00 mm) ± 0.006 (0.15 mm) 0.022 (0.55 mm) 0.002 (0.05 mm) MIN. 0.0197 (0.500 mm) BSC 0.009 (0.23 mm) REF. 0.043 (1.09 mm) MAX.

Description

The AA105-86 is a 4 bit, single positive control GaAs IC FET digital attenuator. It requires DC blocking capacitors, positive supply voltage (V S) and four individual positive bit control voltages (V1–V4). The AA105-86 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. Parameter1 Condition Frequency Min. Typ. Max. Unit Insertion Loss 0.5–1.0 GHz 1.5 1.8 dB 1.0–2.0 GHz 2.1 2.4 dB 2.0–2.5 GHz 2.4 2.7 dB 2.5–3.0 GHz 2.7 3.0 dB Attenuation Range 15 dB Attenuation Accuracy2 0.5–1.0 GHz ± (0.2 + 2% of dB Attenuation Setting in dB) Attenuation Setting in dB) VSWR (I/O)3 0.5–2.5 GHz 1.5:1 2.0:1 Switching Characteristics4 Rise, Fall (10/90% or 90/10% RF) 180 ns On, Off (50% CTL to 90/10% RF) 270 ns Video Feedthru 50 mV Input Power for 1 dB Compression V S = +3 V 0.5–3.0 GHz +20 +24 dBm VS = +5 V 0.5–3.0 GHz +25 +29 dBm Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm VS = +3 V 0.5–3.0 GHz +43 +49 dBm VS = +5 V 0.5–3.0 GHz +44 +50 dBm Control Voltages V Low = 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 Electrical Specifications at -40°C to +85°C (0, +5 V) 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Attenuation referenced to insertion loss. 3. Input/output. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.

2 Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579• Emailsales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 9/00A GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5–3.0 GHz AA105-86 Insertion Loss (dB) Frequency (GHz) Insertion Loss vs. Frequency -2.5 -2.0 -1.5 -1.0 -0.5 +25˚C +85˚C -40˚C IP3 (dBm) Attenuation (dB) IP3 vs. Attenuation and Temperature (500 MHz) 0123456789 1 0 1 1 1 2 1 3 1 4 1 5 +25˚C +85˚C -40˚C VSWR Frequency (GHz) VSWR vs. Frequency (25˚C) 1.0 1.2 1.4 1.6 1.8 2.0 15 dB Ins. Loss 1 dB 2 dB 4 dB 8 dB VSWR Frequency (GHz) VSWR vs. Frequency (85˚C) 1.0 1.2 1.4 1.6 1.8 2.0 Ins. Loss 1 dB 2 dB 4 dB 8 dB 15 dB VSWR Frequency (GHz) VSWR vs. Frequency (-40˚C) 1.0 1.2 1.4 1.6 1.8 2.0 Ins. Loss 1 dB 2 dB 4 dB 8 dB 15 dB Typical Performance Data (0, +5 V) Compression Point vs. Attenuation, Voltage, and Temperature Attenuation Control Input Power @ 1 dB Compression State Voltage (V) +25°C (dBm) +85°C (dBm) -40°C (dBm) Ins. Loss 5 31.1 30.9 31.2 1 dB 5 31.3 31.4 31.3 2 dB 5 31.0 30.8 31.1 4 dB 5 32.5 31.4 33.6 8 dB 5 33.0 32.4 33.5 15 dB 5 29.9 28.0 31.4

Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579• Emailsales@alphaind.com • www.alphaind.com 3 Specifications subject to change without notice. 9/00A GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5–3.0 GHz AA105-86 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (25˚C) -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 1 dB 2 dB4 dB 8 dB 15 dB -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (85˚C) 1 dB 2 dB 4 dB 8 dB 15 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (25˚C) -10 1 dB 2 dB 4 dB 8 dB 15 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (85˚C) -10 1 dB 2 dB 4 dB 8 dB 15 dB -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (-40˚C) 1 dB2 dB 4 dB 8 dB 15 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (-40˚C) -10 1 dB 2 dB 4 dB 8 dB 15 dB

4 Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579• Emailsales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 9/00A GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5–3.0 GHz AA105-86 Insertion Loss (dB) Frequency (GHz) Insertion Loss vs. Frequency -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 +25˚C +85˚C -40˚C VSWR vs. Frequency (25˚C) VSWR Frequency (GHz) 1.0 1.2 1.4 1.6 1.8 2.0 Ins. Loss 1 dB 2 dB 4 dB 8 dB 15 dB -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (25˚C) 1 dB 2 dB 4 dB 8 dB 15 dB -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (85˚C) 1 dB 2 dB4 dB 8 dB 15 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (25˚C) -10 1 dB2 dB 4 dB 8 dB 15 dB -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (-40˚C) 1 dB 2 dB 4 dB 8 dB 15 dB Typical Performance Data (0, +3 V)

Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579• Emailsales@alphaind.com • www.alphaind.com 5 Specifications subject to change without notice. 9/00A GaAs IC 4 Bit Digital Attenuator 1 dB LSB Positive Control 0.5–3.0 GHz AA105-86 Truth Table V1 V2 V3 V4 Attenuation 8 dB 4 dB 2 dB 1 dB J1–J2 VHigh VHigh VHigh VHigh Reference I.L. VHigh VHigh VHigh 01 d B VHigh VHigh 0V High 2 dB VHigh 0V High VHigh 4 dB 0V High VHigh VHigh 8 dB 0 0 0 0 15 dB Max. Atten. DC blocking capacitors (CBL) and biasing resistor must be supplied externally for positive voltage operation. C BL = 47 pF for operation >500 MHz. 8 dB 4 dB 2 dB 1 dB GND GND GND GND VS C BL C BL 10 kΩ Pin Out VHigh = +3 to +5 V (VS = VHigh ± 0.2 V). Characteristic Value RF Input Power 1 W > 500 MHz 0/8 V

0.5 W @ 50 MHz 0/8 V

Control Voltage -0.2 V, +8 V Operating Temperature -40 °C to +85°C Storage Temperature -65 °C to +150°C Absolute Maximum Ratings Note: Exceeding these parameters may cause irreversible damage. IP3 (dBm) Attenuation (dB) IP3 vs. Attenuation and Temperature (500 MHz) 0123456789 1 0 1 1 1 2 1 3 1 4 1 5 +25˚C +85˚C -40˚C Compression Point vs. Attenuation, Voltage, and Temperature Attenuation Control Input Power @ 1 dB Compression State Voltage (V) +25°C (dBm) +85°C (dBm) -40°C (dBm) Ins. Loss 3 24.7 24.2 24.4 1 dB 3 25.2 24.9 25.0 2 dB 3 24.8 24.2 24.7 4 dB 3 31.1 30.5 31.9 8 dB 3 25.1 25.9 27.3 15 dB 3 24.9 24.4 27.0