Voltage Variable Absorptive Attenuator 30 dB, 0.5-2.0 GHz Functional Schematic 1,2,3 Features • • • • • • • • AT-110-2 V1 Single Positive Voltage Control: 0 to +5 Volts 30 dB Voltage Variable Attenuation ± 2 dB Linearity from BSL Low DC Power Consumption Temperature Range: -40°C to +85°C SOIC-8 Plastic Package Tape and Reel Packaging Available Fast Switching Speed 8 7 6 5 1 2 3 4 Description M/A-COM’s AT-110-2 is a GaAs MMIC voltage variable absorptive attenuator in a low-cost SOIC 8lead surface mount plastic package. The AT-110-2 has a faster switching speed than the AT-108 or AT-109. The AT-110-2 is ideally suited for use where linear attenuation fine tuning and very low power consumption are required. Typical applications include radio, cellular, GPS equipment and automatic gain/level control circuits. The AT-110-2 is fabricated with a monolithic GaAs MMIC using a mature 1-micron process. The process features full chip passivation for increased performance and reliability. Ordering Information Part Number Package AT-110-2 SOIC 8-Lead Plastic Package AT-110-2TR Forward Tape and Reel Note: Reference Application Note M513 for reel size information. 1. VCC = +5 VDC ± 0.5 VDC @ 300 µA maximum. 2. VC = 0 VDC to +5 VDC @ 6 mA maximum. 3. External DC blocking capacitors are required on all RF ports. Pin Configuration Pin No. Function Pin No. Function 1 Ground 5 VC 2 Ground 6 Ground 3 RF Port 7 RF Port 4 VCC 8 Ground Absolute Maximum Ratings 4,5 Parameter Absolute Maximum Input Power +21 dBm Supply Voltage VCC -1 V < VCC < +8 V Control Voltage VC -1 V < VC < VCC + 0.5 V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 4. Exceeding any one or combination of these limits may cause permanent damage to this device. 5. M/A-COM does not recommend sustained operation near these survivability limits. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Voltage Variable Absorptive Attenuator 30 dB, 0.5-2.0 GHz AT-110-2 V1 Electrical Specifications6: TA = 25°C, Z0 = 50 Ω Parameter Test Conditions Units Min. Typ. Max. Insertion Loss 0.5 - 1.0 GHz 1.0 - 2.0 GHz dB dB — — 2.8 3.3 3.0 3.6 Attenuation 1.0 GHz 1.0 - 2.0 GHz dB dB 37.5 25 — — — — Flatness (Peak to Peak) 0.5 - 1.0 GHz 1.0 - 2.0 GHz dB dB — — ± 0.5 ± 1.2 ± 0.8 ± 1.5 VSWR — Ratio — 2:1 — Trise, Tfall 10% to 90% RF, 90% to 10% RF µS — 0.2 — Ton, Toff 50% Control to 90% RF, 50% Control to 10% RF µS — 0.2 — Transients In-band mV — 70 — 6. The RF ports must be blocked outside of the package from ground or any other voltage. SOIC-8 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Voltage Variable Absorptive Attenuator 30 dB, 0.5-2.0 GHz AT-110-2 V1 Typical Performance Curves @ 25°C Attenuation vs. Control Voltage, F = 900, 1800 MHz Attenuation vs. Temperature, Normalized to +25°C , F = 900 MHz 3 0 -40°C 1800 900 +85°C 2 -10 1 0 -20 -1 -30 -2 -3 -40 5 4 3 2 1 5 0 4 3 2 1 0 Control Voltage (V) Control Voltage (V) Return Loss vs. Control Voltage, F = 900 MHz Insertion Loss vs. Frequency 4 0 3 -10 2 -20 1 -30 -40 0 0.5 1.0 1.5 5 2.0 4 3 2 1 0 1 0 Control Voltage (V) Frequency (GHz) 1 dB Compression vs. Control Voltage, F = 900 MHz IP3 vs. Control Voltage 40 40 30 30 20 20 10 10 400 MHz 900 MHz 0 0 5 4 3 2 1 0 Control Voltage (V) 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. 5 4 3 2 Control Voltage (V) • North America Tel: 800.366.2266 / Fax: 978.366.2266 • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.