Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 V 3.00 Features n n n n n n n CSP-1 Attenuation: 1 dB Steps to 15 dB Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 Ohm Impedance Test Boards Available Tape and Reel Packaging Available Description M/A-COM’s AT90-0413 is a GaAs FET 4-Bit digital attenuator with integral driver. Step size is 1 dB providing a 15 dB attenuation range. This device is in an FQFP-N plastic surface mount package. The AT90-0413 is suited for applications where accuracy, fast speed, low power consumption and low costs are required. Electrical Specifications: TA = 25°C Parameter Test Conditions Frequency Units Min. Typ. Max. Insertion Loss — DC-2.5 GHz DC-4.0 GHz dB dB — — 2.0 2.5 2.5 3.0 Attenuation Accuracy Individual Bits or Combination of Bits DC-2.5 GHz DC-4.0 GHz dB dB — — — — ±(0.3+4% of atten setting) ±(0.3+6% of atten setting) VSWR Full Attenuation Range DC-2.5 GHz DC-4.0 GHz Ratio Ratio — — 1.5:1 1.8:1 1.8:1 2.0:1 Switching Speed 50% Cntl to 90%/10% RF 10% to 90% or 90% to 10% — — nS nS — — 75 20 150 50 1 dB Compression — 50 MHz 0.5-4.0 GHz dB dB — — +21 +29 — — Input IP3 Two-tone Inputs up to +5 dBm 50 MHz 0.5-4.0 GHz dB dB — — +35 +48 — — +Vcc — — V 4.75 5.0 5.25 -Vee — — V -8.0 -5.0 -4.75 Logic “0” Sink Current is 20 µA max. — V 0.0 — 0.8 Logic “1” Sink 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 Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 V 3.00 Recommended PCB Layout 2 Pin Configuration Pin No. Function Pin No. Function 1 GND 17 N/C 2 C8 18 N/C 3 C4 19 N/C 4 C2 20 N/C 5 C1 21 N/C 6 GND 22 N/C 7 GND 23 N/C 8 N/C 24 N/C 9 N/C 25 N/C 10 N/C1 26 GND 11 GND 27 RF2 12 RF1 28 GND 13 GND 29 N/C1 14 N/C 30 -Vee 15 N/C 31 N/C 16 N/C 32 +Vcc 2. Application Note C2083 is available on line at www.macom.com Absolute Maximum Ratings 3 Parameter Absolute Maximum Max. Input Power 0.05 GHz 0.5 - 4.0 GHz +27 dBm +34 dBm +Vcc +5.5V 1. Pins 10 & 29 must be isolated. Truth Table C8 C4 C2 C1 Attenuation 0 0 0 0 0 0 0 1 Loss, Reference 1.0 dB 0 0 1 1 0 1 0 1 1 0 0 1 0 0 0 1 2.0 dB 4.0 dB 8.0 dB 15.0 dB -Vee -8.5V Logic Voltages 4 -0.5 to +Vcc + 0.5V Operating Temperature -40°C to +85°C Storage Temperature -65°C to +125°C 3. Operation of this device above any one of these parameters may cause permanent damange. 4. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply. 0 = TTL Low; 1 = TTL High Typical Performance Curves Insertion Loss VSWR @ Insertion Loss RF In 2.50 1.40 VSWR Attenuation (dB) RF Out 1.60 3.00 2.00 1.20 1.50 1.00 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 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 2500 3000 3500 4000 Frequency (MHz) 2 Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 V 3.00 Typical Performance Curves Attenuation Error, 2 dB Bit 0.30 0.30 0.20 0.20 Attenuation (dB) Attenuation (dB) Attenuation Error, 1 dB Bit 0.10 0.00 -0.10 -0.20 0.10 0.00 -0.10 -0.20 -0.30 -0.30 0 500 1000 1500 2000 2500 3000 3500 0 4000 500 1000 2000 0.20 0.40 0.00 Attenuation (dB) 0.60 0.20 0.00 3000 3500 4000 3500 4000 3500 4000 -0.20 -0.40 -0.60 -0.20 0 500 1000 1500 2000 2500 3000 3500 0 4000 500 1000 1500 2000 2500 3000 Frequency (MHz) Frequency (MHz) Attenuation Error, Max. Attenuation VSWR, 1 dB Bit RF In 0.40 RF Out 1.60 0.20 1.40 VSWR Attenuation (dB) 2500 Attenuation Error, 8 dB Bit Attenuation Error, 4 dB Bit Attenuation (dB) 1500 Frequency (MHz) Frequency (MHz) 0.00 1.20 -0.20 -0.40 1.00 0 500 1000 1500 2000 2500 3000 3500 4000 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 2500 3000 Frequency (MHz) 3 Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 V 3.00 Typical Performance Curves VSWR, 4 dB Bit VSWR, 2 dB Bit RF In RF In RF Out 1.60 1.40 1.40 VSWR 1.20 1.20 1.00 1.00 0 500 1000 1500 2000 2500 3000 3500 0 4000 500 1000 1500 2000 2500 3000 3500 4000 3500 4000 Frequency (MHz) Frequency (MHz) VSWR, Max. Attenuation VSWR, 8 dB Bit RF In RF In RF Out 1.60 1.40 1.40 RF Out VSWR VSWR 1.60 1.20 1.20 1.00 1.00 0 500 1000 1500 2000 2500 3000 3500 0 4000 500 1000 -40°C 2000 2500 3000 1 dB Bit vs. Temperature Insertion Loss vs. Temperature +25°C 1500 Frequency (MHz) Frequency (MHz) -40°C +85°C 3.0 +25°C +85°C Attenuation Accuracy (dB) 0.6 2.5 Insertion Loss (dB) RF Out VSWR 1.60 2.0 1.5 1.0 0.5 0.0 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 0 1000 2000 3000 4000 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 1000 2000 3000 4000 Frequency (MHz) 4 Digital Attenuator, 15 dB, 4-Bit, TTL Driver, DC - 4.0 GHz AT90-0413 V 3.00 Typical Performance Curves 4 dB Bit vs. Temperature 2 dB Bit vs. Temperature -40°C +25°C -40°C +85°C 0.4 0.3 0.2 0.1 0 -0.1 +85°C 0.6 0.5 0.4 0.3 0.2 0.1 0 0 1000 2000 3000 4000 0 1000 Frequency (MHz) -40°C +25°C 2000 3000 4000 Frequency (MHz) Max. Attenuation vs. Temperature 8 dB Bit vs. Temperature +85°C -40°C +25°C +85°C 0.4 Attenuation Accuracy (dB) 0.05 Attenuation Accuracy (dB) +25°C 0.7 Attenuation Accuracy (dB) Attenuation Accuracy (dB) 0.5 0.00 -0.05 -0.10 -0.15 -0.20 -0.25 -0.30 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 -0.35 0 1000 2000 3000 4000 Frequency (MHz) 0 1000 2000 3000 4000 Frequency (MHz) Ordering Information Part Number Package AT90-0413 Bulk Packaging AT90-0413TR Tape and Reel (1K Reel) AT90-0413-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