HRF-AT4520 Preliminary 31.0 dB, DC-4GHz, 5 Bit Parallel Digital Attenuator Features • • • • • • Very Low DC Power Consumption Attenuation In Steps From 1 dB To 31 dB Single Or Dual Power Supply Voltages Parallel Data Interface 50 Ohm Compatible Impedance TM Space Saving LPCC Surface Mount Packaging Product Description The Honeywell HRF-AT4520 is a 5-bit digital attenuator that is 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. HRF-AT4520 in LPCC™ Package RF Electrical Specifications @ + 25oC Parameter Test Condition Insertion Loss Frequency 1dB Compression VSS = 0V, Input Power DC – 0.5 GHz 2.0 GHz 3.0 GHz 4.0 GHz DC – 2.0 GHz 1dB Compression VSS = - VDD, Input Power DC – 2.0 GHz Input IP3 Minimum Typical Maximum Units 1.8 2.7 --24 dB dB dB dB dBm 29 dBm VSS = 0V Two-tone inputs DC – 2.0 GHz 38 dBm Up To +5 dB @ 0 dB Attenuation Input IP3 Vss = - VDD DC – 2.0 GHz >38 dBm Two-tone inputs Up To + 5 dB @ 0 dB Attenuation Return Loss* Any Combination of Bits DC - 4.0 GHz 11 dB dB +/-(0.3 + 3% of programmed IL) DC – 1.0 GHz Attenuation Accuracy All attenuation states dB +/-(0.3 + 3% of programmed IL) 2.0 GHz All attenuation states dB +/-(0.4 + 4% of programmed IL) 3.0 GHz All attenuation states dB +/-(0.5 + 6% of programmed IL) 4.0 GHz All attenuation states Trise, Tfall* 10% To 90% TBD nS Ton, Toff (Tpd) 50% Cntl To 90%/10%RF nS Transients In-Band mV 0.01uF Decoupling Capacitors Required On Power Supply Rails. *By design ________________________________________________________________________________________________________ Web Site: www.mysoiservices.com Honeywell Email: [email protected] Solid State Electronics Center 12001 State Highway 55 2002 4520W Published June 2002 Page 1 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4520 Preliminary Functional Schematic DC Electrical Specifications @ + 25oC Parameter Minimum VDD 3.3 1 VSS IDD Power Supply Current 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% Typical 5.0 Maximum -5.0 2 0.8 VDD 10 Units V V mA V V uA Absolute Maximum Ratings2 Parameter Input Power VDD VSS ESD Voltage Operating Temperature Storage Temperature ( Digital Inputs Absolute Maximum + 35 +6.0 -5.5 400 -40 To +85 -65 To +125 VDD+0.6 max to VSS -0.6 min Units dBm V V V Degrees C Degrees C V (Note 2) Operation of this Device beyond any of these parameters may cause permanent damage. Latch-Up: Unlike conventional CMOS digital attenuators, Honeywells' HRF-AT4520 is immune to latch-up. . ESD Protection: Although the HRF-AT4520 contains ESD protection circuitry on all digital inputs, conventional precautions should be taken to ensure that the Absolute Maximum Ratings are not exceeded. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com [email protected] 2002 4520W Published June 2002 Page 2 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4520 Preliminary Package Outline Drawing This package conforms to the LPCCTM 4 x 4 mm 24 lead body dimensions. See ASAT LPCC Marketing Outline Dwg. # DGMJ00004 Latest Rev. at http://www.asat.com for additional dimensional information. Pin Configuration 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 DIGITAL GROUND S0 S1 S2 S3 S4 OPEN Truth Table S4 0 0 0 0 0 1 1 Operation: S3 0 0 0 0 1 0 1 S2 0 0 0 1 0 0 1 S1 0 0 1 0 0 0 1 S0 0 1 0 0 0 0 1 Output Reference Input 1 dB 2 dB 4 dB 8 dB 16 dB 31 dB Data on parallel input “S” pins are independently buffered and presented to the RF attenuator circuits. "0" = CMOS Low, "1" = CMOS High. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com [email protected] 2002 4520W Published June 2002 Page 3 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4520 Preliminary 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 switch performance in less than 10 minutes. HRF-AT4520 Evaluation Board Evaluation Circuit Board Layout Design Details Item PCB Attenuator Chip Capacitor RF Connector DC Pin Description Impedance Matched Multi-Layer FR4 HRF-AT4520 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 Evaluation Circuit Board Connections Digital Open Gnd Gnd VDD S4 S3 S2 S1 S0 VSS HRF-AT4520 Evaluation Board Top View RF In RF Out HRF-AT4520 Honeywell ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com [email protected] 2002 4520W Published June 2002 Page 4 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4520 Preliminary Performance Curves Insertion Loss This Insertion Loss curve represents the Min/Max conditions for the “0” pass state versus all processing and temperature conditions. The Min case is at –40C with the “Fast” processing conditions. The Max case is at +85C with the “Slow” processing conditions. All other combinations fall within that band. The typical 25C case is labeled +25C TT. Return Loss This Return Loss set of curves represents the combination of all Return Loss cases for all attenuation settings. All cases are better than –14dB Return Loss at 4GHz. Attenuation State Accuracy The Attenuation Accuracy curve with vertical axis of +/- 1dB shows all states better than +/- 0.5dB to 2GHz and better than +/- 0.8dB to 4GHz. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com [email protected] 2002 4520W Published June 2002 Page 5 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4520 Preliminary Compression The P1dB curve shows all states with a P1dB compression at approximately 23dB input power. The conditions for this curve are Vdd = +5.0v and Vss = 0v. For higher P1dB compression values, supply Vss with a negative voltage as shown in the next curve. The P1dB curve shows all states with a P1dB compression at approximately 31dB input power. The conditions for this curve are Vdd = +5.0v and Vss = -5.0v. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com [email protected] 2002 4520W Published June 2002 Page 6 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4520 Preliminary Ordering Information Ordering Number Delivery Method Units Per Shipment HRF-AT4520-B In Chip Tubes HRF-AT4520-TR HRF-AT4520-E On Tape And Reel On Individual Engineering Evaluation Board Customer Specific, Usually Minimum Of 50 Per Chip Tube Customer Specific One Board Per Box 3 (Note 3) Call Honeywell for details TM LPCC is a registered Trademark of ASAT Ltd. 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. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com [email protected] 2002 4520W Published June 2002 Page 7 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295