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HRF-AT4611
Preliminary
31.5 dB, DC-4GHz, 6 Bit Serial Digital Attenuator
Features
* * * * * * 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 TM Space Saving LPCC 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 DC - 0.5 GHz 2.0 GHz 3.0 GHz 4.0 GHz DC - 2.0 GHz DC - 2.0 GHz
Typical
2.1 2.9 --24 29
Maximum
Units
dB dB dB dB dBm dBm
1dB Compression 1dB Compression Input IP3
VSS = 0V, Input Power VSS = - VDD, Input Power
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 dBm @ 0 dBm Attenuation Return Loss* Any Bit or Combination DC - 4.0 GHz 11 dB Attenuation Accuracy All attenuation states DC - 1.0 GHz +/-(0.3 + 3% of programmed IL) dB All attenuation states 2.0 GHz +/-(0.3 + 3% of programmed IL) dB All attenuation states 3.0 GHz +/-(0.4 + 4% of programmed IL) dB All attenuation states 4.0 GHz +/-(0.5 + 6% 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 2002 4611W Published June 2002 Page 1 Plymouth, Minnesota 55441-4799 1-800-323-8295
HRF-AT4611
Preliminary
Functional Schematic
DC Electrical Specifications @ + 25oC
Parameter Minimum 1 VDD 3.3 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 (Control Lines) Operating Temperature Storage Temperature ( Digital Inputs Absolute Maximum + 35 +6.0 -5.5 2K -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, 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: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 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 LPCC 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.
TM
Pin Configuration
Pin
1 2 3 4 5 6 7 8
Function
VDD GROUND RF INPUT GROUND GROUND GROUND GROUND GROUND
Pin
9 10 11 12 13 14 15 16
Function
GROUND RF OUTPUT GROUND VSS DIGITAL GROUND OE CLK DATA
Serial Data Load
Serial data is shifted into the register on the rising edge of clock, MSB first. The OE falling edge must occur prior to any additional rising clock edges. See the Electrical Spec Table for AC parameters.
________________________________________________________________________________________________________
Web Site: Email: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 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: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 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 VDD CLK Gnd Gnd Data OE VSS
RF In
HRF-AT4611 Evaluation Board Top View
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: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 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 0.1
Step To Step Delta (dB)
-0.1
StepAcc@0.01GHz
-0.3 -0.5 -0.7 -0.9 -1.1 -1.3 -1.5 -3 2 7 12 17 22 27 32
StepAcc@0.1GHz StepAcc@0.5GHz StepAcc@1GHz StepAcc@2GHz StepAcc@3GHz StepAcc@4GHz
Programmed Attenuation (dB)
________________________________________________________________________________________________________
Web Site: Email: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 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
1
Relative Accuracy (dB)
RelAcc@0.01GHz
0.5
RelAcc@0.1GHz RelAcc@0.5GHz RelAcc@1GHz RelAcc@2GHz RelAcc@3GHz RelAccMax RelAccMin
0
-3 2 7 12 17 22 27 32
-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: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 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
HRF-AT4611-B HRF-AT4611-TR HRF-AT4611-E
(Note 3) Call Honeywell for details
Delivery Method
In Chip Tubes On Tape And Reel On Individual Engineering Evaluation Board
3
Units Per Shipment
Customer Specific, Usually Minimum Of 50 Per Chip Tube Customer Specific One Board Per Box
LPCC
TM
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: 2002 4611W www.mysoiservices.com mysoiservices@honeywell.com Published June 2002 Page 8 Honeywell Solid State Electronics Center 12001 State Highway 55 Plymouth, Minnesota 55441-4799 1-800-323-8295

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