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| Digital Attenuator, 5 Bit, 15.5 dB, 500 - 2500 MHz V 3.00 MAATSS0001 Features 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 Functional Schematic VC5 VC4 VC3 VC2 VC1 0.5 dB 1 dB 8 dB Description 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. RFIN RFOUT Absolute Maximum Ratings 1 Parameter Max Input Power 0.5 - 2.5 GHz Operating Temperature Storage Temperature Absolute Maximum +34 dBm -40C to +85C -65C to +150C 1. Operation of this device above any one of these parameters may cause permanent damage. Electrical Specifications: TA = 25 C, Z0 = 50 Parameter Insertion Loss Conditions -- Frequency 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 0.8 GHz 0.8 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 0.5 - 1.8 GHz 1.8 - 2.2 GHz 2.2 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz 0.5 - 2.5 GHz -- -- -- -- -- dB dB dB dB dBm dBm dBm dBm S S mV A A Units dB dB dB Ratio Min. -- -- -- -- Typ. 1.9 2.2 2.5 1.6:1 Max. 2.2 2.5 2.8 1.9:1 VSWR Accuracy Any State Any State (0.3 + 4% atten setting) (0.3 + 3% atten setting) (0.3 + 6% atten setting) (0.3 + 8% atten setting) 0.3 0.2 0.1 14.0 19 22 34 43 -- -- -- -- -- -- -- -- 15.0 25 30 36 46 2.14 2.14 62 -- -- 0.8 0.9 1.0 -- -- -- -- -- -- -- -- 40 40 Step Change Any State Attenuation Range 1 dB Compression Input Power IP3 Trise, Tfall Ton, Toff Transients Control Voltages -- +3 V +5 V +3 V Two tones input power up to +5 dBm +5 V Two tones input power up to +5 dBm 10/90% or 90/10% RF 50% CNTL to 90/10% RF In Band +3 V +5 V Digital Attenuator, 5 Bit, 15.5 dB, 500 - 2500 MHz Pin Out QSOP-16 (SSOP-16) MAATSS0001 V 3.00 c PIN 16 XX-XXX YYWWXXX MACOM E1 E L PIN 1 D A1 A e b Truth Table Control Inputs VC5 1 0 1 1 1 1 VC4 1 1 0 1 1 1 VC3 1 1 1 0 1 1 VC2 1 1 1 1 0 1 VC1 1 1 1 1 1 0 Attenuation (dB) A Reference A1 0.5 dB b 1 dB c 2 dB D 4 dB e 8 dB E E1 L 0 0.025 basic 0.228 0.150 0.016 -- 0.025 basic 0.236 0.154 0.025 0.025 basic 0.025 basic 0.244 0.157 0.050 -- 0.189 0.193 0.197 0.007 -- 0.010 0.008 -- 0.012 0.004 0.006 0.010 Dimensions Measurement (Inches) Minimum 0.053 Nominal 0.064 Maximum 0.069 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. 2 Digital Attenuator, 5 Bit, 15.5 dB, 500 - 2500 MHz MAATSS0001 V 3.00 Typical Performance Curves Attenuation Flatness vs. Frequency 4dB 1dB 0.5dB Attenuation Flatness vs. Frequency 15.5dB 8dB 2dB Deviation from Attenuation Setting (dB) 0.3 0.2 0.1 0 Deviation from Attenuation Setting (dB) 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 -0.1 -0.2 -0.3 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency 2dB 1.4 1.2 0dB 1dB 0.5dB 1.6 1.4 1.2 VSWR vs. Frequency 4dB 8dB 15.5dB VSWR (ratio) VSWR (ratio) 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 1 0.8 0.6 0.4 0.2 0 1 0.8 0.6 0.4 0.2 0 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency +85C 3 -40C +25C Ordering Information Part Number MAATSS0001 MAATSS0001TR MAATSS0001-TB Package Bulk Packaging Tape and Reel (1K Reel) Units Mounted on Test Board Insertion Loss (dB) 2.5 2 1.5 1 0.5 0 0.5 0.7 0.9 1.1 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. 1.3 1.5 1.7 1.9 2.1 2.3 2.5 3 |
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