AT90-0107 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC-4.0 GHz CSP-1 Features n n n n n n n V 7.00 Attenuation: 0.5 dB Steps to 31.5 dB Low DC Power Consumption Small Footprint, JEDEC Package Integral TTL Driver 50 ohm Impedance Test Boards are Available Tape and Reel Packaging Available Description M/A-COM's AT90-0107 is a GaAs FET 6-bit digital attenuator with integral TTL driver. Step size is 0.5 dB providing a 31.5 dB total attenuation range. This device is in an FQFP-N plastic surface mount package. The AT90-0107 is ideally suited for use where accuracy, fast speed, very low power consumption and low costs are required. Electrical Specifications TA = +25°C Parameter Test Conditions Frequency Units Min Typical Max Insertion Loss — DC - 4.0 GHz dB — 4.5 5.1 Attenuation Accuracy Individual Bits 0.5-1-2-4-8-16 dB Any Combination of Bits 1 to 31.5 dB DC - 4.0 GHz DC - 4.0 GHz dB dB — — — — ±(.3 +7% of atten setting) ±(.5 +8% of atten setting) VSWR Full Range DC - 4.0 GHz Ratio — 2.0:1 2.2:1 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 dBm dBm — — +21 +29 — — Input IP3 Two-tone inputs up to +5 dBm 50 MHz 0.5-4.0 GHz dB dB — — +35 +48 — — +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 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 4.0 GHz AT90-0107 V 7.00 Pin Configuration Recommended PCB Layout 2 Pin # Function Pin # Function 1 C8 17 NC 2 C4 18 NC 3 C2 19 NC 4 C1 20 NC 5 C0.5 21 NC 6 C16 22 NC 7 8 9 GND NC NC 23 24 25 NC NC NC 10 NC1 26 GND 11 GND 27 RF2 12 RF1 28 GND 13 14 GND NC 29 30 NC1 -Vee 15 NC 31 NC 16 NC 32 +Vcc 1. Pins 10 & 29 must be isolated 2. Application Note C2083 is available on line at www.macom.com Truth Table Absolute Maximum Ratings 3 C16 C8 C4 C2 C1 C0.5 Attenuation 0 0 0 0 0 0 Loss, Reference 0 0 0 0 0 1 0.5 dB 0 0 0 0 1 0 1.0 dB 0 0 0 1 0 0 2.0 dB 0 0 1 0 0 0 4.0 dB 0 1 0 0 0 0 8.0 dB 1 0 0 0 0 0 16.0 dB Operating Temperature -40°C to +85°C 1 1 1 1 1 1 31.5 dB Storage Temperature -65°C to +125°C 0 = TTL Low; 1 = TTL High 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. Parameter Absolute Maximum Max. Input Power 0.05 GHz 0.5 - 4.0 GHz +27 dBm +34 dBm +Vcc +5.5V -Vee Logic Voltages -8.5V 4 -0.5 to +Vcc + 0.5V 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. 2 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 4.0 GHz AT90-0107 V 7.00 Typical Performance Curves VSWR @ Insertion Loss Insertion Loss 2.2 5.0 1.9 VSWR Loss (dB) Input 6.0 4.0 1.6 1.3 3.0 2.0 1.0 0 1000 2000 3000 4000 0 1000 Frequency (MHz) 3000 4000 Attenuation Error, 1 dB Bit 0.4 Attenuation Error (dB) 0.4 Attenuation Error (dB) 2000 Frequency (MHz) Attenuation Error, 0.5 dB Bit 0.2 0.0 -0.2 0.2 0.0 -0.2 -0.4 -0.4 0 1000 2000 3000 0 4000 1000 2000 3000 4000 Frequency (MHz) Frequency (MHz) Attenuation Error, 4 dB Bit Attenuation Error, 2 dB Bit 0.4 0.4 Attenuation Error (dB) Attenuation Error (dB) Output 0.2 0.0 -0.2 0.2 0.0 -0.2 -0.4 -0.4 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) 3 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 4.0 GHz AT90-0107 V 7.00 Typical Performance Curves Attenuation Error, 16 dB Bit Attenuation Error, 8 dB Bit 0.8 Attenuation Error (dB) Attenuation Error (dB) 0.8 0.4 0.0 -0.4 -0.8 0.4 0.0 -0.4 -0.8 0 1000 2000 3000 4000 0 1000 2000 Frequency (MHz) Output Input 1.8 1.0 1.6 0.0 VSWR Attenuation Error (dB) 4000 VSWR, 0.5 dB Bit Attenuation Error, Max. Attenuation 1.4 -1.0 1.2 -2.0 1.0 0 1000 2000 3000 4000 0 1000 2000 3000 4000 3000 4000 Frequency (MHz) Frequency (MHz) VSWR, 2 dB Bit VSWR, 1 dB Bit Input Input Output 1.8 1.8 1.6 1.6 VSWR VSWR 3000 Frequency (MHz) 1.4 1.2 Output 1.4 1.2 1.0 1.0 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 Frequency (MHz) 4 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 4.0 GHz AT90-0107 V 7.00 Typical Performance Curves VSWR, 4 dB Bit VSWR, 8 dB Bit Input Output Input Output 1.8 1.6 1.6 VSWR VSWR 1.4 1.4 1.2 1.2 1.0 1.0 0 1000 2000 3000 0 4000 1000 3000 4000 VSWR, Max. Attenuation VSWR, 16 dB Bit Input 2000 Frequency (MHz) Frequency (MHz) Input Output Output 1.6 1.8 1.6 VSWR VSWR 1.4 1.4 1.2 1.2 1.0 1.0 0 1000 2000 3000 4000 0 1000 2000 3000 4000 Frequency (MHz) Frequency (MHz) Typical Attenuation Deviation vs. Temperature for 0.5 dB Bit Typical Attenuation Deviation vs. Temperature for 1 dB Bit 0.25 0.40 0.20 0.30 Attenuation (dB) Attenuation (dB) 0.15 0.10 0.05 0.00 -0.05 -0.10 0.20 0.10 0.00 -0.10 -0.15 -0.20 -0.20 -0.30 -0.25 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) 5 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 4.0 GHz AT90-0107 V 7.00 Typical Performance Curves Typical Attenuation Deviation vs. Temperature for 4 dB Bit Typical Attenuation Deviation vs. Temperature for 2 dB Bit Room Hot 0.30 0.25 0.25 0.20 0.20 Attenuation (dB) Attenuation (dB) Cold 0.30 0.15 0.10 0.05 0.00 -0.05 -0.10 0.15 0.10 0.05 0.00 -0.05 -0.10 -0.15 -0.15 -0.20 -0.20 -0.25 -0.25 0 500 1000 1500 2000 2500 3000 3500 0 4000 500 1000 2000 2500 3000 3500 4000 Typical Attenuation Deviation vs. Temperature for 16 dB Bit Typical Attenuation Deviation vs. Temperature for 8 dB Bit Cold 1500 Frequency (MHz) Frequency (MHz) Room Hot Cold 0.50 Room Hot 0.60 0.40 0.40 0.20 Attenuation (dB) Attenuation (dB) 0.30 0.10 0.00 -0.10 -0.20 -0.30 -0.40 0.20 0.00 -0.20 -0.40 -0.60 -0.50 -0.60 -0.80 0 500 1000 1500 2000 2500 3000 3500 4000 0 1000 Frequency (MHz) Typical Attenuation Deviation vs. Temperature at Maximum Atten. 3000 4000 Insertion Loss vs. Temperature Cold Room Hot 5.0 0.50 4.5 Insertion Loss (dB) 0.00 Attenuation (dB) 2000 Frequency (MHz) -0.50 -1.00 -1.50 -2.00 4.0 3.5 3.0 2.5 2.0 -2.50 1.5 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 1000 2000 3000 4000 Frequency (MHz) 6 Digital Attenuator, 31.5 dB, 6-Bit, TTL Driver, DC - 4.0 GHz AT90-0107 V 7.00 Ordering Information Part Number Package AT90-0107 Bulk Packaging AT90-0107TR Tape and Reel (1K Reel) AT90-0107-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. 7