AA264-87

AA264-87 ALPHA | Alldatasheet

Document overview

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Technical content

Features

I Attenuation 2 dB Steps to 30 dB with High Accuracy I Single Positive Control for Each Bit I Low DC Power Consumption I Small Low Cost TSSOP-16 Plastic Package TSSOP-16 AA264-87 0.173 (4.40 mm) ± 0.004 (0.10 mm) 0.197 (5.00 mm) ± 0.004 (0.10 mm) 0.252 (6.4 mm) BSC PIN 16 PIN 1 INDICATOR PIN 1 0.006 (0.15 mm) MAX. 0.002 (0.05 mm) MIN. 0.047 (1.20 mm) MAX. 0.035 (0.90 mm) -0.004 (-0.10 mm) 0.0256 (0.65 mm) BSC 0.009 (0.22 mm) REF. R 0.004 (0.09 mm) MIN. 0.024 (0.60 mm) ± 0.006 (0.15 mm)

Description

The AA264-87 is a 4 bit, single positive control GaAs IC FET digital attenuator in a low cost TSSOP-16 package. The attenuator requires external DC blocking capacitors, positive supply voltage (V S) and four individual positive control voltages (V1–V4). The AA264-87 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. Parameter1 Condition Frequency Min. Typ. Max. Unit Insertion Loss 0.5–1.0 GHz 1.6 2.0 dB 0.5–2.0 GHz 1.8 2.4 dB Attenuation Range 30 dB Attenuation Accuracy2 0.5–1.0 GHz ± (0.2 + 3% of Attenuation Setting in dB) dB 2–24 dB Setting) dB 26–30 dB Setting) dB VSWR (I/O)3 0.5–0.8 GHz 1.8:1 2.2:1 Switching Characteristics4 Rise, Fall (10/90% or 90/10% RF) 150 ns On, Off (50% CTL to 90/10% RF) 300 ns Video Feedthru 70 mV Input Power for 1 dB Compression V S = +3 V 0.5–2.0 GHz +15 +21 dBm VS = +5 V 0.5–2.0 GHz +21 +27 dBm Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm VS = +3 V 0.5–2.0 GHz +36 +44 dBm VS = +5 V 0.5–2.0 GHz +37 +45 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 2 dB LSB Positive Control 0.5–2 GHz AA264-87 Insertion Loss (dB) Frequency (GHz) Insertion Loss vs. Frequency -3.5 -3.0 -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) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 +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 2.2 Ins. Loss 2 dB 4 dB 8 dB 16 dB 30 dB Ins. Loss 2 dB 4 dB 8 dB 16 dB 30 dB VSWR vs. Frequency (85˚C) VSWR Frequency (GHz) 1.0 1.2 1.4 1.6 1.8 2.0 2.2 VSWR Frequency (GHz) VSWR vs. Frequency (-40˚C) 1.0 1.2 1.4 1.6 1.8 2.0 2.2 Ins. Loss 2 dB 4 dB 8 dB 16 dB 30 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 29.0 28.9 29.0 2 dB 5 28.3 28.1 28.1 4 dB 5 35.2 34.7 35.0 8 dB 5 25.8 25.3 25.4 16 dB 5 21.7 21.3 21.6 30 dB 5 24.4 23.2 27.2

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 2 dB LSB Positive Control 0.5–2 GHz AA264-87 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (25˚C) -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.5 1.0 2 dB 4 dB 8 dB16 dB 30 dB Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (85˚C) -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.5 1.0 2 dB 4 dB8 dB16 dB 30 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (25˚C) -15 2 dB 4 dB 8 dB 16 dB 30 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (85˚C) -15 2 dB 4 dB 8 dB 16 dB 30 dB Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (-40˚C) -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.5 1.0 2 dB 4 dB 8 dB 16 dB30 dB Deviation from Nominal Insertion Phase (Deg.) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (-40˚C) -15 2 dB 4 dB 8 dB 16 dB30 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 2 dB LSB Positive Control 0.5–2 GHz AA264-87 Insertion Loss (dB) Frequency (GHz) Insertion Loss vs. Frequency -3.5 -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) Ins. Loss 2 dB 4 dB 8 dB 16 dB 30 dB 1.0 1.2 1.4 1.6 1.8 2.0 2.2 Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (25˚C) -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.5 1.0 2 dB 4 dB 8 dB 16 dB 30 dB Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (85˚C) -4.5 -4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.5 1.0 2 dB 4 dB 8 dB 16 dB 30 dB Deviation from Nominal Insertion Phase (dB) Frequency (GHz) Attenuation Phase Accuracy vs. Frequency (25˚C) -10 2 dB4 dB 6 dB 8 dB30 dB Deviation from Nominal Attenuation (dB) Frequency (GHz) Attenuation Accuracy vs. Frequency (-40˚C) -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.5 1.0 2 dB 4 dB 8 dB 16 dB 30 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 2 dB LSB Positive Control 0.5–2 GHz AA264-87 Truth Table V1 V2 V3 V4 Attenuation 16 dB 8 dB 4 dB 2 dB J 1–J2 VHigh VHigh VHigh VHigh Reference I.L. VHigh VHigh VHigh 02 d B VHigh VHigh 0V High 4 dB VHigh 0V High VHigh 8 dB 0V High VHigh VHigh 16 dB 0 0 0 0 30 dB Max. Atten. VHigh = +3 to +5 V (VS = VHigh ± 0.2 V). 12 3 4 56 8 16 15 14 13 12 11 9 16 dB 8 dB 4 dB 2 dBGND GND GND GND GND GND GND GND GND GND C BL C BL VS 10 kΩ Pin Out 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. DC blocking capacitors (CBL) and biasing resistor must be supplied externally for positive voltage operation. C BL = 47 pF for operation >500 MHz. IP3 (dBm) Attenuation (dB) IP3 vs. Attenuation and Temperature (500 MHz) 0 2 4 6 8 1 01 21 41 61 82 02 22 42 62 83 0 +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 21.7 21.6 22.6 2 dB 3 21.2 20.7 21.4 4 dB 3 34.3 31.0 34.3 8 dB 3 33.6 23.0 32.9 16 dB 3 18.0 17.0 21.4 30 dB 3 22.4 21.2 24.1