AT65-0283 Digital Attenuator, 15.5 dB, 5-Bit, TTL Driver DC - 2.0 GHz Features • • • • • • • SOW-16 Attenuation: 0.5 dB Steps to 15.5 dB Low DC Power Consumption Plastic SOIC, Wide Body, SMT Package Integral TTL Driver 50 ohm Impedance Test Boards are Available Tape and Reel Packaging Available Description M/A-COM's AT65-0283 is a GaAs FET 5-bit digital attenuator with integral TTL driver. Step size is 0.5 dB providing a 15.5 dB total attenuation range. This device is in a SOIC-16 plastic surface mount package. The AT65-0283 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. Ordering Information Part Number Package Bulk Packaging Tape and Reel1 Units Mounted on Test Board AT65-0283 AT65-0283TR AT65-0283-TB 1. Check with the factory for available quantities and reel size. Electrical Specifications TA = +25°C Package outline conforms to JEDEC standard MS-013AA. Parameter Test Conditions Frequency Units Min Typical Max Insertion Loss — DC - 1.0 GHz DC - 2.0 GHz dB dB — — 2.0 2.3 2.5 2.7 Attenuation Accuracy Any Bit Any Combination of Bits DC - 2.0 GHz DC -2.0 GHz dB dB — — — — ±(.3 +4% of atten) ± (.3 +6% of atten) VSWR Full Range DC - 2.0 GHz Ratio — 1.5:1 1.8:1 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — nS nS — — 75 20 150 50 1 dB Compression — — 50 MHz 0.5 - 2.0 GHz dBm dBm — — +21 +29 — — Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-2.0 GHz dB dB — — +35 +48 — — Vcc -Vee — — — — V V 4.75 -5.25 5.0 -5.0 5.25 -4.75 Logic “0” Sink Current is 20 µA max. — V 0.0 — 0.8 Logic “1” Source Current is 20 µA max. — V 2.0 — 5.0 Icc Vcc min to max, Logic “0” or “1” — mA — 0.2 6 -Iee -Iee min to max, Logic “0” or “1” — mA — -0.2 -1 Switching Speed 2 Specifications subject to change without notice. North America: Tel. (800) 366-2266, Fax (800) 618-8883 Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 3.0 Digital Attenuator, 15.5dB, 5-Bit, TTL Driver DC - 2.0 GHz Absolute Maximum Ratings 3 Parameter Max. Input Power 0.05 GHz 0.5 - 2.0 GHz +Vcc -Vee Logic Voltages Operating Temperature Storage Temperature AT65-0283 Pin Configuration Absolute Maximum +27 dBm +34 dBm +5.5V -8.5V -0.5 to Vcc + 0.5V -40°C to +85°C -65°C to +125°C Pin # Function Pin # Function 1 RF 9 C8 2 GND 10 Vcc 3 GND 11 Vee 4 GND 12 C4 5 GND 13 C2 6 GND 14 C1 7 GND 15 C0.5 8 RF 16 GND 3. Operation of this device above any one of these parameters may cause permanent damange. Truth Table Typical Performance Insertion loss 2.50 2.00 1.50 1.00 0 500 1000 1500 2000 C8 C4 C2 C1 C0.5 Attenuation 0 0 0 0 0 Loss, Reference 0 0 0 0 1 0.5 dB 0 0 0 1 0 1.0 dB 0 0 1 0 0 2.0 dB 0 1 0 0 0 4.0 dB 1 0 0 0 0 8.0 dB 1 1 1 1 1 15.5 dB 0 = TTL Low; 1 = TTL High Frequency (MHz) Attenuation Accuracy 0.5, 1, 2 dB Bits Attenuation Accuracy 4 dB Bit 8 dB Bit Max Attenuation 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 0 500 1000 1500 2000 Frequency (MHz) Specifications subject to change without notice. North America: Tel. (800) 366-2266, Fax (800) 618-8883 Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 0 500 1000 1500 2000 Frequency (MHz) V 3.0 Digital Attenuator, 15.5dB, 5-Bit, TTL Driver DC - 2.0 GHz AT65-0283 Typical Performance VSWR RFout 0.5, 1, 2, & 4 dB Bits VSWR @ Insertion Loss RFout RFin 1.5 1.4 1.3 1.2 1.1 1 1.6 1.4 1.2 1 0 500 1000 1500 0 2000 500 1000 1500 2000 Frequency (MHz) Frequency (MHz) VSWR RFout 8 dB Bit & Max. Attenuation VSWR RFin 0.5, 1, 2, 4, 8 dB Bits & Max. Attenuation 1.5 1.4 1.3 1.2 1.1 1 1.5 1.4 1.3 1.2 1.1 1 0 500 1000 1500 2000 Frequency (MHz) Specifications subject to change without notice. North America: Tel. (800) 366-2266, Fax (800) 618-8883 Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 0 500 1000 1500 2000 Frequency (MHz) V 3.0