MAATSS0002 Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz Features V 2.00 Functional Schematic n 5 Bits, 1 dB Steps n Excellent Accuracy n Positive Control (+3 to +5V) n Small Low Cost QSOP-16 (SSOP-16) Package VC5 VC4 1dB Description VC3 VC1 VC2 2dB 16dB RFIN The M/A-COM MAATSS0002 is a 1 dB step GaAs MMIC digital attenuator with 31.0 dB dynamic range in a low cost QSOP-16 (SSOP-16) package. It requires external DC blocking capacitors on the RF ports, positive supply voltage and five individual bit control voltages. It is particularly suited where high attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include base stations, wireless data, and wireless local loop gain level control circuits. The MAATSS0002 is fabricated using M/A-COM’s GaAs 1.0 micron process. The process features full chip passivation for increased performance and reliability. RFOUT Absolute Maximum Ratings 1 Parameter Absolute Maximum Max Input Power 0.8 - 2.5 GHz +34 dBm Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C 1. Operation of this device above any one of these parameters may cause permanent damage. Electrical Specifications: TA = 25 °C, Z0 = 50 Ω Parameter Conditions Frequency Units Min. Typ. Max. Insertion Loss — 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz dB dB dB — — — 1.8 2.2 2.7 1.9 2.3 2.9 Accuracy — 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz Step Change — 0.8 - 1.5 GHz 1.5 - 2.0 GHz 2.0 - 2.5 GHz dB dB dB 0.4 0.4 0.4 1.0 1.0 1.0 1.4 1.6 1.8 Attenuation Range — 0.8 - 2.5 GHz dB 30.0 31.0 32.2 VSWR — 0.8 - 2.5 GHz dB — — 2.0:1 Trise, Tfall 10% to 90% RF, 90% to 10% RF — µS — 2 — Ton, Toff 50% Control to 10% / 90% RF — µS — 2 — Transients In Band — mV — 120 — P1dB +3V +5V 0.8 - 2.5 GHz 0.8 - 2.5 GHz dBm dBm 15 18 — — — — IP3 +3V Input Power up to + 5 dBm +5V Input Power up to +5 dBm 0.8 - 2.5 GHz 0.8 - 2.5 GHz dBm dBm 34 43 — — — — Control Voltages Vlow = 0.0 ± 0.2V @ 20 µA, 40 µA Max. Vhigh = +3 ± 0.2V or +5V ± 0.2V @ 20 µA, 40 µA Max. Vs = Vhigh @ 200 µA Max ± (0.3 dB + 4% of Attenuation) ± (0.3 dB + 3% of Attenuation) ± (0.4 dB + 3% of Attenuation) Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz MAATSS0002 V 2.00 QSOP-16 (SSOP-16) Pin Out c RF1 PIN 16 50 pF VC4 VC5 GND 16 10 11 12 13 14 15 VC3 XX-XXX YYWWXXX GND E1 E MACOM L GND GND GND PIN 1 θ D GND A1 GND 9 VC1 VC2 AT0002 GND 1 2 3 4 5 6 7 8 GND 50 pF VS A 10KOhm RF2 e b Truth Table Control Inputs Dimensions VC5 VC4 VC3 VC2 VC1 Attenuation (dB) 1 1 1 1 1 Reference 0 1 1 1 1 1 dB 1 0 1 1 1 2 dB 1 1 0 1 1 4 dB 1 1 1 0 1 8 dB 1 1 1 1 0 16 dB 1 = Vhigh = (Vs ± 0.1) V, 0 = (0.0 ± 0.1) V 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. Measurement (Inches) Minimum Nominal Maximum A 0.053 0.064 0.069 A1 0.004 0.006 0.010 b 0.008 — 0.012 c 0.007 — 0.010 D 0.189 0.193 0.197 e 0.025 basic 0.025 basic 0.025 basic E 0.228 0.236 0.244 E1 0.150 0.154 0.157 L 0.016 0.025 0.050 0 — 0.025 basic — 2 Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz MAATSS0002 V 2.00 Typical Performance Curves Insertion Loss vs. Frequency 25°C +85°C VSWR vs. Frequency @ +25°C -40°C 1dB 0dB 2dB 1.45 0 1.40 -0.5 VSWR (ratio) 1.35 IL (dB) -1 -1.5 -2 1.30 1.25 1.20 1.15 1.10 -2.5 1.05 1.00 -3 25°C 31 dB 0 1.90 -0.1 1.80 -0.2 1.70 Deviation (dB) VSWR (ratio) 2.5 2.4 2.3 2.2 2.1 2 1.9 1.8 1.7 4 dB 2.00 1.60 1.50 1.40 1.30 -40°C -0.4 -0.5 -0.6 -0.7 -0.8 1.10 -0.9 1.00 -1 2.5 2.4 2.3 2.2 2.1 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 Atten. Settings Frequency (GHz) Deviation from Attenuation Setting @ 1.5 GHz +85°C +85°C -0.3 1.20 25°C 1.6 8 dB 1.5 Deviation from Attenuation Setting @ 0.8 GHz VSWR vs. Frequency @ +25°C 16 dB 1.4 1.3 1.2 1.1 1 0.9 0.8 2.5 2.4 2.3 2.2 2.1 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 Frequency (GHz) Frequency (GHz) Deviation from Attenuation Setting @ 2.0 GHz 25°C -40°C +85°C -40°C 1 0.4 0.8 0.6 0 Deviation (dB) Deviation (dB) 0.2 -0.2 -0.4 -0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -0.8 -1 -1.2 -1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 Atten. Settings 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. 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 Atten. Settings 3 Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz MAATSS0002 V 2.00 Typical Performance Curves Typical Step Size @ +25°C Deviation from Attenuation Setting @ 2.5 GHz 25°C +85°C 0.8 GHz -40°C 1.5 Step (atten i-atten i+1) (dB) Deviation (dB) 1 0.5 0 -0.5 -1 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -1.5 1 3 5 7 9 1 11 13 15 17 19 21 23 25 27 29 31 3 5 7 9 Step Size over Temperature @ 0.8 GHz Typical Step Size @ +25°C 2.5GHz 11 13 15 17 19 21 23 25 27 29 Atten. Setting Atten. Settings +85°C 1.5GHz 1.8 25°C -40°C -0.6 1.6 -0.7 1.4 Step Size (dB) Step (Atten i - Atten i+1) (dB) 2.0 GHz 1.6 1.2 1 0.8 0.6 -0.8 -0.9 -1 -1.1 0.4 -1.2 0.2 0 -1.3 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 1 3 5 7 9 Atten. Setting Atten. Settings Step Size over Temperature @ 1.5 GHz 25°C +85°C 11 13 15 17 19 21 23 25 27 29 Step Size over Temperature @ 2.0 GHz -40°C 25°C +85°C -40°C -0.3 -0.4 -0.5 -0.5 Step Size (dB) Step Size (dB) -0.6 -0.7 -0.8 -0.9 -1 -1.1 -0.7 -0.9 -1.1 -1.3 -1.2 -1.5 -1.3 -1.4 -1.7 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 Atten. Settings 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. 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 Atten. Settings 4 Digital Attenuator, 31.0 dB, 1 dB LSB, 5-Bit, 800 - 2500 MHz MAATSS0002 V 2.00 Typical Performance Curves Step Size over Temperature @ 2.5 GHz +25°C +85°C Ordering Information -40°C 0 -0.2 Part Number Package MAATSS0002 Bulk Packaging MAATSS0002TR Tape and Reel (1K Reel) MAATSS0002-TB Units Mounted on Test Board Step Size (dB) -0.4 -0.6 -0.8 -1 -1.2 -1.4 -1.6 -1.8 -2 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 Atten. Settings 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