MAATSS0001 Digital Attenuator, 5 Bit, 15.5 dB, 500 - 2500 MHz Features V 3.00 Functional Schematic n 5 Bits, 0.5 dB Steps n Excellent Accuracy n Single Positive Control (+3 to +5V) n Small Low Cost QSOP-16 (SSOP-16) Package Description VC5 VC4 0.5 dB 1 dB VC3 VC2 VC1 8 dB RFIN The M/A-COM MAATSS0001 is a 0.5 dB step GaAs MMIC digital attenuator with 15.5 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 MAATSS0001 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 0.5 - 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 — 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz dB dB dB — — — 1.9 2.2 2.5 2.2 2.5 2.8 VSWR Any State 0.5 - 2.5 GHz Ratio — 1.6:1 1.9:1 Accuracy Any State 0.5 - 0.8 GHz 0.8 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz Step Change Any State 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz dB dB dB 0.3 0.2 0.1 — — — 0.8 0.9 1.0 Attenuation Range — 0.5 - 2.5 GHz dB 14.0 15.0 — 1 dB Compression Input Power +3 V +5 V 0.5 - 2.5 GHz 0.5 - 2.5 GHz dBm dBm 19 22 25 30 — — IP3 +3 V Two tones input power up to +5 dBm +5 V Two tones input power up to +5 dBm 0.5 - 2.5 GHz 0.5 - 2.5 GHz dBm dBm 34 43 36 46 — — Trise, Tfall 10/90% or 90/10% RF — µS — 2.14 — Ton, Toff 50% CNTL to 90/10% RF — µS — 2.14 — Transients In Band — mV — 62 — Control Voltages +3 V +5 V — — µA µA — — — — 40 40 ± (0.3 + 4% atten setting) ± (0.3 + 3% atten setting) ± (0.3 + 6% atten setting) ± (0.3 + 8% atten setting) Digital Attenuator, 5 Bit, 15.5 dB, 500 - 2500 MHz MAATSS0001 V 3.00 QSOP-16 (SSOP-16) Pin Out c PIN 16 XX-XXX YYWWXXX E1 E MACOM L PIN 1 θ D A1 A 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 0.5 dB 1 0 1 1 1 1 dB 1 1 0 1 1 2 dB 1 1 1 0 1 4 dB 1 1 1 1 0 8 dB 1 = Vhigh = (Vs ± 0.1) V, 0 = (0.0 ± 0.2) 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, 5 Bit, 15.5 dB, 500 - 2500 MHz MAATSS0001 V 3.00 Typical Performance Curves Attenuation Flatness vs. Frequency 1dB 0.5dB 15.5dB Deviation from Attenuation Setting (dB) Deviation from Attenuation Setting (dB) 4dB Attenuation Flatness vs. Frequency 0.3 -0.2 -0.3 0.1 -0.4 0 -0.5 -0.6 -0.7 -0.8 -0.2 -0.9 -0.3 -1 2.1 2.3 2.5 2.1 2.3 2.5 1.9 1.7 0dB 1.5 VSWR vs. Frequency 2dB 1.3 1.1 0.9 0.7 0.5 2.5 2.3 2.1 1.9 1.7 1.5 1.3 1.1 0.9 0.7 0.5 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency 1dB 0.5dB 4dB 1.4 1.6 1.2 1.4 8dB 15.5dB 1.2 1 VSWR (ratio) VSWR (ratio) 2dB -0.1 0.2 -0.1 0.8 0.6 0.4 1 0.8 0.6 0.4 0.2 0.2 0 0 1.9 1.7 1.5 Frequency (GHz) Insertion Loss vs. Frequency +85°C 1.3 1.1 0.9 0.7 0.5 2.5 2.3 2.1 1.9 1.7 1.5 1.3 1.1 0.9 0.7 0.5 Frequency (GHz) Insertion Loss (dB) 8dB 0 -40°C Ordering Information +25°C 3 Part Number Package 2.5 MAATSS0001 Bulk Packaging 2 MAATSS0001TR Tape and Reel (1K Reel) 1.5 MAATSS0001-TB Units Mounted on Test Board 1 0.5 0 2.5 2.3 2.1 1.9 1.7 1.5 1.3 1.1 0.9 0.7 0.5 Frequency (GHz) 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. 3