HRF-AT4610 31.5 dB, DC - 4GHz, 6 Bit Parallel Digital Attenuator The Honeywell HRF-AT4610 is a 6-bit digital attenuator ideal for use in broadband communication system applications that require accuracy, speed and low power consumption. The HRF-AT4610 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-AT4610 in VQFN Package Very Low DC Power Consumption Attenuation In Steps From 0.5 dB To 31.5 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 Green RF ELECTRICAL SPECIFICATIONS @ + 25oC Results @ VDD = 5.0 +/- 10%, VSS = 0 unless otherwise stated, Z0 = 50 Ohms Contact Honeywell for relative performance at other supply configurations Parameter Test Condition Insertion Loss Frequency Minimum Typical Maximum Units 1.0 GHz 2.5 GHz 3.0 GHz 4.0 GHz 2.5 3.0 3.6 5.5 2.9 3.5 3.9 5.8 dB dB dB dB 1dB Compression VSS = 0V, Input Power VSS = -3V, Input Power 2.0 GHz 2.0 GHz 24 29 Input IP3 VSS = 0V Two-tone inputs, up to +5 dBm @ 0 dBm attenuation 2.0 GHz 38 Input IP3 Vss = -3V Two-tone inputs, up to +5 dBm @ 0 dBm attenuation Return Loss Any Bit or Combination Attenuation Accuracy All attenuation states All attenuation states All attenuation states All attenuation states Trise, Tfall Ton, Toff (Tpd) 10% To 90% 50% Cntl To 90% / 10%RF T clock Period (Tprd) T high / T low = 1/2 minimum clock period 50 nS T data set up (Tsup) Set up to rising edge of clock 5 nS T data hold (Thld) Data hold after rising edge of clock 2 nS T latch set up (Tlsup) Data set up to rising edge of OE 5 nS dBm dBm dBm 2.0 GHz >38 -11 1.0 GHz 2.5 GHz 3.0 GHz 4.0 GHz dBm -13 dB +/-(0.3 + 3.0% of programmed IL) +/-(0.3 + 4.0% of programmed IL) +/-(0.3 + 5.5% of programmed IL) +/-(0.3 + 7.0 % of programmed IL) dB dB dB dB 10 15 nS nS HRF-AT4610 FUNCTIONAL SCHEMATIC S5 S4 S3 S2 S1 S0 ESD, Buffer, Level Shift RF In RF Out 16dB 8dB 4dB 2dB 1dB .5dB DC ELECTRICAL SPECIFICATIONS @ + 25C Parameter Minimum Typical VDD 3.31 5.0 VSS -5.0 IDD <5.0 CMOS Logic level (0) 0 CMOS Logic level (1) VDD - 0.8 Input Leakage Current Note 1, the performance curves are for VDD = +5.0 +/- 10% Maximum Units 5.5 V V uA V V uA 50 0.8 VDD 10 ABSOLUTE MAXIMUM RATINGS1 Parameter Absolute Maximum Units Input Power + 35 dBm VDD +6.0 V VSS -5.5 V ESD Voltage2 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 VDD+0.6 max to -0.6 min V Note 1 - Operation of this device beyond any of these parameters may cause permanent damage. Note 2 - Although the HRF-AT4610 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-AT4610 is immune to latch-up. 2 www.honeywell.com/microwave HRF- AT4610 PIN CONFIGURATIONS Pin Function Pin Function 1 2 3 4 5 6 7 8 9 10 11 12 VDD GROUND GROUND RF INPUT GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND 13 14 15 16 17 18 19 20 21 22 23 24 GROUND GROUND RF OUTPUT GROUND VSS GROUND S0 S1 S2 S3 S4 S5 Note: Bottom ground plate must be grounded for proper RF performance. TRUTH TABLE S5 S4 S3 S2 S1 S0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 1 Operation: Data on parallel input "S" pins are independently buffered and presented to the RF attenuator circuits. "0" = CMOS Low, "1" = CMOS High. www.honeywell.com/microwave 3 HRF-AT4610 PERFORMANCE CURVES Insertion Loss Typical AT4610 Reference Insertion Loss 0.0 - 40 C -0.5 + 25 C + 85 C -1.0 3.3 V Insertion Loss (dB) -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 -4.5 -5.0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 Frequency (GHz) Return Loss Typical AT4610 Input Return Loss 0.0 -5.0 Input Return Loss (dB) -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 Attn 1dB Attn 2 dB Attn 3dB Attn 5dB Attn 9dB Attn 17dB Attn 31dB -40.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Frequency (GHz) 4 www.honeywell.com/microwave HRF- AT4610 Step Accuracy Typical AT4610 Step Accuracy 1.0 0.8 0.5 dB 1.0 dB 2.0 dB 4.0 dB 8.0 dB 16.0 dB 31.5 dB 0.6 Step Accuracy (dB) 16 dB 0.4 4 dB 0.2 2 dB 0.0 -0.2 8 dB 31.5 dB -0.4 -0.6 -0.8 -1.0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 Frequency (GHz) Relative Accuracy Typical AT4610 Relative Accuracy 0.5 Relative Accuracy (dB) 16 dB 4 dB 0.0 8 dB -0.5 -1.0 -1.5 0.5 dB 1.0 dB 2.0 dB 4.0 dB 8.0 dB 16.0 dB 31.5 dB 31.5 dB -2.0 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 Frequency (GHz) www.honeywell.com/microwave 5 HRF-AT4610 PACKAGE OUTLINE DRAWING Notes 1. Pin 1 identifier can be a combination or a dot and/or chamfer. 2. Dimensions are in millimeters. GREEN MATERIAL SET The -GR attenuators have a Green material set that can withstand a maximum soldering temperature of 260OC. LEAD FINISH The package leads are Nickel Palladium Gold (NiPdAu). The configuration being manufactured and delivered today is lead-free RoHS compliant. Compliant packages have half-etch leadframes and have date codes of 0300 or greater. LEAD FREE QFN SURFACE MOUNT APPLICATION Please see Application Note AN310 for assembly process recommendations. The maximum soldering temperature of the o o -GR is 260 C (-AU attenuators are 250 C). Application Notes can be found at our website: www.honeywell.com/microwave CIRCUIT APPLICATION INFORMATION These attenuators require a DC reference to ground. They may not operate properly when AC coupled on both the RF input and output without a DC ground reference provided as part of the circuit. See Application Note AN311. 6 www.honeywell.com/microwave HRF- AT4610 EVALUATION CIRCUIT BOARD Honeywell's evaluation board provides an easy to use method of evaluating the RF performance of our attenuator. Simply connect power, DC and RF signals to be measuring attenuator performance in less than 10 minutes. VDD S5 S4 S3 S2 S1 S0 RF In Gnd Gnd VSS HRF-AT4610 Evaluation Board Top View RF Out HRF-AT4610 Honeywell HRF-AT4610 Evaluation Board EVALUATION CIRCUIT BOARD LAYOUT DESIGN DETAILS Item Description PCB Attenuator Chip Capacitor RF Connector DC Pin Impedance Matched Multi-Layer FR4 HRF-AT4610 Digital Attenuator Panasonic Model ECU-E1C103KBQ Capacitor, .01uf 0402 10% 16V Johnson Connectors Model 142-0701-801 SMA RF Coaxial Connector Mil-Max Model 800-10-064-10-001 Header Pins ORDERING INFORMATION Ordering Number Delivery Method Units Per Shipment HRF-AT4610-GR-TR HRF-AT4610-GR-T HRF-AT4610-E Tape & Reel Tape Evaluation Board 2500 Units per Reel <2500 One Board Per Box The new -GR attenuators will replace and are fully back-compatible with the -AU attenuators. FIND OUT MORE For more information on Honeywell's Microwave Products visit us online at www.honeywell.com/microwave or contact us at 800-323-8295 (763-954-2474 internationally). Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Honeywell 12001 Highway 55 Plymouth, MN 55441 Tel: 800-323-8295 www.honeywell.com/microwave www.honeywell.com/microwave Form #4610W September 2007 (c)2007 Honeywell International Inc. 7