HRF-AT4611 Preliminary 31.5 dB, DC-4GHz, 6 Bit Serial Digital Attenuator Features x x x x x x Very Low DC Power Consumption Attenuation In Steps From 0.5 dB To 31.5 dB Single Or Dual Power Supply Voltages Serial Data Interface 50 Ohm Compatible Impedance Space Saving LPCCTM Surface Mount Packaging Product Description The Honeywell HRF-AT4611 is a 6-bit digital attenuator that is ideal for use in broadband communication system applications that require accuracy, speed and low power consumption. The HRF-AT4611 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-AT4611 in LPCCTM Package RF Electrical Specifications @ + 25oC Results @ Vdd = 5.0 +/- 10%, Vss = 0 unless otherwise stated, Z0 = 50 Ohms Parameter Test Condition Frequency Minimum Insertion Loss 1dB Compression VSS = 0V, Input Power DC - 1.0 GHz 2.5 GHz 3.0 GHz 4.0 GHz DC - 2.0 GHz 1dB Compression VSS = - VDD, Input Power DC - 2.0 GHz Input IP3 Typical Maximum Units 2.5 3.0 3.6 5.5 24 2.9 3.5 3.9 5.8 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 DC - 2.0 GHz >38 dBm Input IP3 Vss = - VDD Two-tone inputs Up To + 5 dBm @ 0 dBm Attenuation Return Loss* Any Bit or Combination DC - 3.0 GHz 11 dB Attenuation Accuracy All attenuation states DC - 1.0 GHz +/-(0.3 + 3% of programmed IL) dB All attenuation states 2.5 GHz +/-(0.3 + 3% of programmed IL) dB All attenuation states 3.0 GHz +/-(0.4 + 5% of programmed IL) dB All attenuation states 4.0 GHz +/-(0.4 + 5.5% of programmed IL) dB Trise, Tfall* 10% To 90% 10 nS Ton, Toff (Tpd) 50% Cntl To 90%/10%RF 15 nS Transients In-Band 30 mV 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 falling edge of OE 5 nS 0.01uF Decoupling Capacitors Required On Power Supply Rails. *By design ________________________________________________________________________________________________________ Web Site: www.mysoiservices.com Honeywell Email: mysoiservices@honeywell.com Solid State Electronics Center 12001 State Highway 55 2003 4611W Published July 2003 Page 1 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary Functional Schematic CLK DATA OE ESD, Registers, Buffer, Level Shift RF In RF Out 16dB 8dB 4dB 2dB 1dB .5dB DC Electrical Specifications @ + 25oC Parameter Minimum VDD 3.31 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 35 0.8 VDD 10 Units V V uA 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 -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, Honeywell's HRF-AT4611 is immune to latch-up. . ESD Protection: Although the HRF-AT4611 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 mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 2 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary Package Outline Drawing This package conforms to the LPCCTM 4 X 4 mm 16 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 VDD GROUND RF INPUT GROUND GROUND GROUND GROUND GROUND 9 10 11 12 13 14 15 16 GROUND RF OUTPUT GROUND VSS DIGITAL GROUND OE CLK DATA Note: Bottom ground plate must be grounded for proper RF performance. Serial Data Load Serial data is shifted into the register on the rising edge of clock, MSB first. The state of "OE" will not affect the shifting of data. The rising edge of the "OE" signal will be the clock for the transfer of shifted data. Latched new data occurs one prop delay after the rising edge of "OE". See the Electrical Spec Table for AC parameters. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 3 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary Truth Table S5 0 0 0 0 0 0 1 1 S4 0 0 0 0 0 1 0 1 S3 0 0 0 0 1 0 0 1 S2 0 0 0 1 0 0 0 1 S1 0 0 1 0 0 0 0 1 S0 0 1 0 0 0 0 0 1 Output Reference Input 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB Operation: Data on serial input D is clocked into internal registers on the low to high transition of the Clock signal (CK). The register output is enabled when Output Enable (OE) is in the low state. "0" = CMOS Low, "1" = CMOS High. 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. HRF-AT4611 Evaluation Board Evaluation Circuit Board Layout Design Details Item PCB Attenuator Chip Capacitor RF Connector DC Pin Description Impedance Matched Multi-Layer FR4 HRF-AT4611 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 ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 4 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary Evaluation Circuit Board Connections Digital CLK Gnd VDD Gnd Data OE VSS HRF-AT4611 Evaluation Board Top View RF In RF Out HRF-AT4611 Honeywell "0" = CMOS Low, "1" = CMOS High Refer to HRF-AT4611 Product Spec. for Serial Data Load Information (http://www.ssec.honeywell.com/microwave/products/attenuators.html) 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. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 5 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary 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. Step Accuracy AT4611 Step Accuracy Vs Attenuation State 0.5 0.3 Step To Step Delta (dB) 0.1 -0.1 StepAcc@0.01GHz StepAcc@0.1GHz -0.3 StepAcc@0.5GHz StepAcc@1GHz -0.5 StepAcc@2GHz StepAcc@3GHz -0.7 StepAcc@4GHz -0.9 -1.1 -1.3 -1.5 -3 2 7 12 17 22 27 32 Programmed Attenuation (dB) ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 6 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary Relative Accuracy AT4611 Relative Accuracy Vs Attenuation 1.5 Relative Accuracy (dB) 1 RelAcc@0.01GHz 0.5 RelAcc@0.1GHz RelAcc@0.5GHz RelAcc@1GHz RelAcc@2GHz 0 -3 2 7 12 17 22 27 32 RelAcc@3GHz RelAccMax RelAccMin -0.5 -1 -1.5 Programmed Attenuation (dB) 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. ________________________________________________________________________________________________________ Web Site: Email: www.mysoiservices.com mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 7 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295 HRF-AT4611 Preliminary 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. Ordering Information Ordering Number Delivery Method Units Per Shipment HRF-AT4611-B In Chip Tubes HRF-AT4611-TR HRF-AT4611-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 LPCCTM 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 mysoiservices@honeywell.com 2003 4611W Published July 2003 Page 8 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295