AT65-0263 Digital Attenuator, 31 dB, 5-Bit, TTL Driver DC-2.0 GHz Features n n n n n n n V 6.00 SOW-16 Attenuation: 1.0 dB Steps to 31 dB Low DC Power Consumption Plastic SOW, Wide Body, SMT Package Integral TTL Driver 50 ohm Impedance Test Boards are Available Tape and Reel Packaging Available Description M/A-COM's AT65-0263 is a GaAs FET 5-bit digital attenuator with integral TTL driver. Step size is 1.0 dB providing 31 dB total attenuation range. This device is in a SOW-16 plastic surface mount package. The AT65-0263 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. Package outline conforms to JEDEC standard MS-013AA. Electrical Specifications: TA = 25°C Parameter Test Conditions Frequency Units Min Typical Max Insertion Loss — Attenuation Accuracy Individual Bits 1-2-4-8-16 Any Combination of bits 3 - 29 dB Any Combination of bits 30 - 31 dB DC-1.0 GHz DC-2.0 GHz DC-2.0 GHz DC-2.0 GHz DC-2.0 GHz dB dB dB dB dB — — — — — 2.6 2.8 — — — 2.9 3.2 ±(.5 +5% of atten setting) ±(.5 +5% of atten setting) ±(.7 +7% of atten setting) Full Range DC-2.0 GHz Ratio — 1.5:1 1.8:1 Input IP3 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — Two-tone inputs up to +5 dBm — — 50 MHz 0.5-2.0 GHz 50 MHz 0.5-2.0 GHz nS nS dBm dBm dB dB — — — — — — 75 20 +21 +29 +35 +48 150 50 — — — — Vcc -Vee — — — — V V 4.75 -8.0 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 -Vee min to max, Logic “0” or “1” — mA — -0.2 -1 VSWR 1 Switching Speed 1 dB Compression 1. Decoupling capacitors (.01 µF) are required on power supply lines. Digital Attenuator, 31 dB, 5-Bit, TTL Driver, DC - 2.0 GHz AT65-0263 V 6.00 Absolute Maximum Ratings 2 Pin Configuration Pin # Function Pin # Function Parameter Absolute Maximum 1 RF 9 C16 2 GND 10 Vcc Max. Input Power 0.05 GHz 0.5 - 2.0 GHz +27 dBm +34 dBm 3 GND 11 Vee 4 GND 12 C8 +Vcc +5.5V 5 GND 13 C4 6 GND 14 C2 7 GND 15 C1 8 RF 16 GND -Vee -8.5V Logic Voltages 3 -0.5 to Vcc + 0.5V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +125°C 2. Operation of this device above any one of these parameters may cause permanent damange. 3. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. Truth Table C16 C8 C4 C2 C1 Attenuation 0 0 0 0 0 Loss, Reference 0 0 0 0 1 1.0 dB 0 0 0 1 0 2.0 dB 0 0 1 0 0 4.0 dB 0 1 0 0 0 8.0 dB 1 0 0 0 0 16.0 dB 1 1 1 1 1 31.0 dB Typical Performance Curves Insertion Loss @ R, H & C +85°C +25°C -40°C Loss (dB) 3 2 1 0 0 = TTL Low; 1 = TTL High 500 1000 1500 2000 1500 2000 Frequency (MHz) 1 dB Bit @ R, H & C 2 dB Bit @ R, H & C 2.4 Attenuation (dB) Attenuation (dB) 1.6 1.4 1.2 1 2.2 2 1.8 1.6 0.8 0 500 1000 1500 2000 Frequency (MHz) 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. 0 500 1000 Frequency (MHz) 2 Digital Attenuator, 31 dB, 5-Bit, TTL Driver, DC - 2.0 GHz AT65-0263 V 6.00 Typical Performance Curves 4 dB Bit @ R, H & C 8 dB Bit @ R, H & C 9 Attenuation (dB) Attenuation (dB) 4.4 4.2 4 3.8 8.5 8 7.5 3.6 0 500 1000 1500 0 2000 500 Frequency (MHz) 17 2000 32 Attenuation (dB) Attenuation (dB) 1500 Max. Attenuation @ R, H & C 16 dB Bit @ R, H & C 16.5 16 15.5 31 30 29 28 27 15 0 500 1000 1500 0 2000 500 1500 2000 Maximum VSWR over Temp, 1 dB Bit Maximum VSWR over Temp, Loss Input 1000 Frequency (MHz) Frequency (MHz) Input Output 1.8 1.8 1.6 1.6 VSWR VSWR 1000 Frequency (MHz) 1.4 1.2 Output 1.4 1.2 1 1 0 500 1000 1500 2000 Frequency (MHz) 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. 0 500 1000 1500 2000 Frequency (MHz) 3 Digital Attenuator, 31 dB, 5-Bit, TTL Driver, DC - 2.0 GHz AT65-0263 V 6.00 Typical Performance Curves Maximum VSWR over Temp, 2 dB Bit Maximum VSWR over Temp, 4 dB Bit Input Output 1.8 1.8 1.6 1.6 VSWR VSWR Input 1.4 1.2 1.4 1.2 1 1 0 500 1000 1500 2000 0 500 1000 1500 2000 Frequency (MHz) Frequency (MHz) Maximum VSWR over Temp, 16 dB Bit Maximum VSWR over Temp, 8 dB Bit Input Input Output 1.8 1.8 1.6 1.6 VSWR VSWR Output 1.4 1.2 Output 1.4 1.2 1 1 0 500 1000 1500 2000 0 500 Frequency (MHz) 1000 1500 2000 Frequency (MHz) Maximum VSWR over Temp, Max Attenuation Input Ordering Information Part Number Package AT65-0263 Bulk Packaging AT65-0263TR Tape and Reel (1K Reel) AT65-0263-TB Units Mounted on Test Board Output 1.8 VSWR 1.6 1.4 1.2 1 0 500 1000 1500 2000 Frequency (MHz) 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. 4