AT65-0008 Voltage Variable Attenuator, 900 - 2500 MHz SO-8 Features n n n n n n V 5.00 High Third Order Intercept Point Surface Mount Package 25 dB Dynamic Range ±5% Operating Bandwidth PIN Diode Based Single Control Voltage Description M/A-COM’s AT65-0008 is a PIN diode based voltage variable attenuator. It is packaged in an 8 lead small outline narrow body plastic, surface mount package. The attenuator has linear operating power and intercept point levels higher than GaAs FET MMIC based voltage variable attenuators. The VVA is suited for use where low distortion and high linear operating power are required. The device operating frequency is selected in the 900 to 2500 MHz frequency band by defining the length of the T/4 (a quarter wave transmission line at the operating frequency) connected to pins 5 and 6. Package outline conforms to JEDEC standard MS-012AA. Electrical Specifications: TA = 25°C, Frequency: ± 5% Bandwidth, 900-2500 MHz Parameter Test Conditions Units Min. Typ. Max. Insertion Loss 2V dB — 1.2 1.5 VSWR 0 to 10 dB Ratio — 1.6:1 2.0:1 VSWR 10 to 20 dB Ratio — 1.8:1 2.0:1 Attenuation 0V dB 25 28 — Attenuation Flatness vs Frequency to 10 dB to 20 dB to 30 dB dB dB dB — — — 0.1 0.15 1.2 0.2 0.3 1.5 Switching Speed 50% Control to 90%/10% RF µSec — 2 5 Linear Operation 0 to 20 dB dBm — +17 +15 Input IP3 Two-tone inputs to +5 dBm dBm +40 — — Voltage Variable Attenuator, 900 - 2500 MHz AT65-0008 V 5.00 Pin Configuration Absolute Maximum Ratings Pin No. Function Pin No. Function Parameter Absolute Maximum 1 RF Input 5 Transmission Line Out Max. Input Power +27 dBm Operating Voltage + 10 Volts 2 GND 6 Transmission Line In Operating Temperature -40°C to +85°C 3 Bias Input 7 GND Storage Temperature -65°C to +125°C 4 GND 8 RF Output Recommended PCB Configuration 1. Circuit Material - GETEK, .014 Thick 2. 90° of length consists of printed transmission line plus effective length of internal circuitry and lead length. Typical Performance Curves Attenuation Flatness, 3 dB Deviation from Nom. Atten. (dB) IP3 vs. Attenuation 55 IP3 (dB) 50 45 40 35 30 0 dB 3 dB 6 dB 10 dB 15 dB 20 dB 22 dB Attenuation Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 0.4 0.2 0 -0.2 -0.4 Fc - 5% Fc - 3% Fc Fc + 3% Fc + 5% Frequency (GHz) 2 Voltage Variable Attenuator, 900 - 2500 MHz AT65-0008 V 5.00 Typical Performance Curves Attenuation Flatness, 10 dB Deviation from Nom. Atten. (dB) Attenuation Flatness, 6 dB Deviation from Nom. Atten. (dB) 0.4 0.2 0 -0.2 -0.4 Fc - 5% Fc - 3% Fc Fc + 3% 0.4 0.2 0 -0.2 -0.4 Fc - 5% Fc + 5% Fc - 3% 0.4 0.2 0 -0.2 -0.4 Fc Fc + 3% 0.4 0.2 0 -0.2 -0.4 Fc - 5% Fc + 5% Fc - 3% Fc Fc + 3% Fc + 5% Frequency (GHz) Frequency (GHz) RF Input VSWR vs. Freq, Ins. Loss RF Input VSWR vs. Freq, 3 dB 2 1.8 1.8 VSWR VSWR 2 1.6 1.6 1.4 1.4 Fc - 5% Fc + 5% Attenuation Flatness, 20 dB Deviation from Nom. Atten. (dB) Deviation from Nom. Atten. (dB) Attenuation Flatness, 15 dB Fc - 3% Fc + 3% Frequency (GHz) Frequency (GHz) Fc - 5% Fc Fc - 3% Fc Fc + 3% Fc + 5% Frequency (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. Fc - 5% Fc - 3% Fc Fc + 3% Fc + 5% Frequency (GHz) 3 Voltage Variable Attenuator, 900 - 2500 MHz AT65-0008 V 5.00 Typical Performance Curves RF Input VSWR vs. Freq, 6 dB RF Input VSWR vs. Freq, 10 dB 2 1.8 1.8 VSWR VSWR 2 1.6 1.6 1.4 1.4 Fc - 5% Fc - 3% Fc Fc + 3% Fc + 5% Fc - 5% Fc - 3% Frequency (GHz) Fc + 3% Fc + 5% Frequency (GHz) RF Input VSWR vs. Freq, 15 dB RF Input VSWR vs. Freq, 20 dB 2 1.8 1.8 VSWR VSWR 2 1.6 1.6 1.4 1.4 1.52 1.51 1.48 1.45 Fc - 5% 1.44 Fc - 3% Typical Insertion Loss @ +25°C Fc + 3% Fc + 5% Typical Insertion Loss @ -40°C 2 Loss (dB) 2 1 1 0 0 Fc - 5% Fc Frequency (GHz) Frequency (GHz) Loss (dB) Fc Fc - 3% Fc Fc + 3% Fc + 5% Frequency (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. Fc - 5% Fc - 3% Fc Fc + 3% Fc + 5% Frequency (GHz) 4 Voltage Variable Attenuator, 900 - 2500 MHz AT65-0008 V 5.00 Typical Performance Curves Typical Insertion Loss @ +85°C Attenuation vs. Voltage at Fc +25°C 2 30 Attenuation (dB) Loss (dB) 25 1 20 15 10 5 0 0 Fc - 5% Fc - 3% Fc Fc + 3% Fc + 5% 0.50 0.70 0.90 Frequency (GHz) 1.50 1.70 1.90 Attenuation vs. Voltage at Fc +85°C 30 25 25 20 Attenuation (dB) Attenuation (dB) 1.30 Voltage Attenuation vs. Voltage at Fc –40°C 20 15 10 5 15 10 5 0 0.50 1.10 0.70 0.90 1.10 1.30 1.50 1.70 1.90 Voltage 0 0.50 0.70 0.90 1.10 1.30 1.50 1.70 1.90 Voltage Ordering Information Part Number Package AT65-0008 Bulk Packaging AT65-0008TR Tape and Reel (1K Reel) AT65-0008-TB Units Mounted on Test Board Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 5