HRF-AT4520 31.0 dB, DC 4 GHz, 5 Bit Parallel Digital Attenuator The Honeywell HRF-AT4520 is a 5-bit digital attenuator ideal for use in broadband communication system applications that require accuracy, speed and low power consumption. The HRF-AT4520 is manufactured with Honeywell s patented Silicon On Insulator (SOI) CMOS manufacturing technology, which provides the performance of GaAs with the economy and integration capabilities of conventional CMOS. These attenuators are DC coupled to improve lower operating frequency, frequency response and reduce the number of DC bias points required. FEATURES HRF-AT4520 in VQFN Package Very Low DC Power Consumption Attenuation In Steps From 1 dB To 31 dB Single Positive Power Supply Voltage Parallel Data Interface 50 Ohm Impedance DC-coupled, bi-directional RF path Space Saving VQFN Surface Mount Packaging Lead-free, RoHS compliant and halogen-free o RF ELECTRICAL SPECIFICATIONS + 25 C Results V = 5.0 +/- 10%, V = 0 unless otherwise stated, Z = 50 Ohms DD SS 0 Contact Honeywell for relative performance at other supply configurations Parameter Test Condition Frequency Minimum Typical Maximum Units 1.0 GHz 2.5 2.9 2.5 GHz 3.0 3.5 dB Insertion Loss 3.0 GHz 3.6 3.9 4.0 GHz 5.5 5.8 V = 0V, Input Power 2.0 GHz 24 dBm SS 1dB Compression VSS =-3V, Input Power 2.0 GHz 29 dBm V = 0V SS dBm Input IP3 Two-tone inputs, up to +5 dBm 2.5 GHz 38 0 dBm attenuation V = -3V ss dBm Input IP3 Two-tone inputs, up to +5 dBm 2.5 GHz >38 0 dBm attenuation Return Loss Any Combination of Bits -11 -13 dB 1.0 GHz +/-(0.3 + 3.0% of programmed IL) Attenuation Accuracy All attenuation states 2.5 GHz +/-(0.3 + 4.0% of programmed IL) dB 3.0 GHz +/-(0.3 + 5.5% of programmed IL) 4.0 GHz +/-(0.3 + 7.0% of programmed IL) Trise, Tfall 10% To 90% 10 nS Ton, Toff (Tpd) 50% Cntl To 90% / 10%RF 15 nS HRF-AT4520 FUNCTIONAL SCHEMATIC S4 S3 S2 S1 S0 ESD, Buffer, Level Shift RF In RF Out 16dB 8dB 4dB 2dB 1dB DC ELECTRICAL SPECIFICATIONS + 25C Parameter Minimum Typical Maximum Units 1 V 3.3 5.0 5.5 V DD V -5.0 V SS I <5.0 50 uA DD CMOS Logic level (0) 0 0.8 V CMOS Logic level (1) V 0.8 V V DD DD Input Leakage Current 10 uA Note 1, the performance curves are for V = +5.0 +/- 10% DD 1 ABSOLUTE MAXIMUM RATINGS Parameter Absolute Maximum Units Input Power + 35 dBm V +6.0 V DD V -5.5 V SS 2 ESD Voltage 400 V O Operating Temperature -40 To +85 C O Storage Temperature -65 To +125 C O Moisture Sensitivity Level Level 3 260 C Digital Inputs V +0.6 max to -0.6 min V DD Note 1 - Operation of this device beyond any of these parameters may cause permanent damage. Note 2 - Although the HRF-AT4520 contains ESD protection circuitry on all digital inputs, precautions should be taken to ensure that the Absolute Maximum Ratings are not exceeded. Latch-Up: Unlike conventional CMOS digital attenuators, Honeywell s HRF-AT4520 is immune to latch-up. 2 www.honeywell.com/microwave