AA106-86

GaAs IC 5 Bit Digital Attenuator 0.5 dB LSB Positive Control 0.5–2.0 GHz AA106-86 Features I Attenuation 0.5 dB Steps to 15.5 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 PIN 10 PIN 1 INDICATOR 0.118 (3.00 mm) ± 0.006 (0.15 mm) 0.193 (4.90 mm) ± 0.006 (0.15 mm) PIN 1 0.034 (0.86 mm) ± 0.004 (0.10 mm) 0.118 (3.00 mm) ± 0.006 (0.15 mm) 8˚–16˚ 0˚–6˚ 0.043 (1.09 mm) MAX. 0.022 (0.55 mm) ± 0.006 (0.15 mm) 0.0197 (0.500 mm) BSC Description The AA106-86 is a 5 bit, single positive control GaAs IC FET digital attenuator in a low cost MSOP-10 package.This attenuator has an LSB of 0.5 dB and a total attenuation of 15.5 dB. The attenuator requires external DC blocking capacitors, positive supply voltage (VS) and five individual bit control voltages (V1–V5). The AA106-86 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. 0.009 (0.23 mm) REF. 0.006 (0.15 mm) MAX. 0.002 (0.05 mm) MIN. Electrical Specifications at 25°C (0, +3 V), (0, +5 V) Parameter1 Insertion Loss2 Attenuation Range Attenuation Accuracy3 0.5–1.0 GHz 1.0–2.0 GHz VSWR (I/O) 0.5–2.0 GHz Frequency 0.5–1.0 GHz 1.0–2.0 GHz Min. Typ. 2.0 3.0 15.5 ± (0.2 + 3% of Attenuation Setting in dB) ± (0.3 + 5% of Attenuation Setting in dB) 1.5:1 2.0:1 Max. 2.4 3.4 Unit dB dB dB dB dB Operating Characteristics at 25°C (0, +5 V) Parameter Switching Characteristics4 Condition 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 0.9–2.0 GHz 0.9–2.0 GHz 0.9–2.0 GHz 0.9–2.0 GHz Frequency Min. Typ. 150 300 70 +21 +27 +41 +45 Max. Unit ns ns mV dBm dBm dBm dBm Input Power for 1 dB Compression Intermodulation Intercept Point (IP3) Control Voltages VLow = 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 3. Attenuation referenced to insertion loss. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/°C. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 10/99A 1 GaAs IC 5 Bit Digital Attenuator 0.5 dB LSB Positive Control 0.5–2.0 GHz AA106-86 Typical Performance Data (0, +5 V) 0 -0.5 2.0 8 dB 1.8 J1–J2 1.6 15.5 dB 1.4 1.2 4 dB 1.0 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 2.5 Ins. Loss 0.5 dB 1 dB 2 dB Insertion Loss (dB) -1.0 -2.0 -2.5 -3.0 -3.5 -4.0 Frequency (GHz) VSWR -1.5 Frequency (GHz) Insertion Loss vs. Frequency 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 0 30 VSWR vs. Frequency Deviation from Nominal Attenuation (dB) Deviation from Nominal Insertion Phase (Deg.) 25 15.5 dB 20 15 10 5 0 -5 -10 0 0.5 dB 1 dB 0.5 1.0 2 dB 4 dB 8 dB 8 dB 0.5 dB 2 dB 1 dB 4 dB 15.5 dB 0.5 1.0 1.5 2.0 2.5 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency Attenuation Phase Accuracy vs. Frequency Truth Table V1 8 dB VHigh VHigh VHigh VHigh VHigh 0 0 V2 4 dB VHigh VHigh VHigh VHigh 0 VHigh 0 V3 2 dB VHigh VHigh VHigh 0 VHigh VHigh 0 V4 1 dB VHigh VHigh 0 VHigh VHigh VHigh 0 V5 0.5 dB VHigh 0 VHigh VHigh VHigh VHigh 0 Attenuation J1–J2 Reference I.L. 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB Max. Atten. Pin Out J1 V1 V2 V3 V4 V5 1 8 dB 4 dB 2 dB 1 dB 0.5 dB CBL 10 GND GND GND CBL VS J2 2 9 3 8 4 7 5 10 kΩ 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. 2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 10/99A 6 GaAs IC 5 Bit Digital Attenuator 0.5 dB LSB Positive Control 0.5–2.0 GHz AA106-86 Typical Performance Data (0, +3 V) 0 -0.5 2.0 8 dB 1.8 1.6 1.4 1.2 4 dB 1.0 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 2.5 Ins. Loss 0.5 dB 1 dB 2 dB 15.5 dB Insertion Loss (dB) -1.0 -2.0 -2.5 -3.0 -3.5 -4.0 J1–J2 VSWR -1.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 0 30 VSWR vs. Frequency Deviation from Nominal Attenuation (dB) Deviation from Nominal Insertion Phase (Deg.) 8 dB 0.5 dB 25 20 15 10 5 0 -5 -10 0 0.5 dB 0.5 1.0 2 dB 1 dB 8 dB 15.5 dB 2 dB 1 dB 4 dB 4 dB 15.5 dB 1.0 1.5 2.0 2.5 0.5 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Attenuation Accuracy vs. Frequency Attenuation Phase Accuracy vs. Frequency 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 -40°C to +85°C -65°C to +150°C Note: Exceeding these parameters may cause irreversible damage. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 10/99A 3