HMC1019LP4E v00.0911 Attenuators - Digital - SMT 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Typical Applications Features The HMC1019LP4E is ideal for: 0.5 dB LSB Steps to 15.5 dB • Fiber Optics & Broadband Telecom TTL/CMOS Compatible, Serial Control • Microwave Radio & VSAT Unique Asynchronous Mode Control Allows Immediate Attenuation Level Setting • Military Radios, Radar & ECM ±0.5 dB Typical Bit Error • Space Applications High Input IP3: +45 dBm • Sensors 24 Lead 4x4mm SMT Package: 16mm2 • Test & Measurement Equipment Functional Diagram General Description The HMC1019LP4E is a broadband 5-bit GaAs IC digital attenuator in a low cost leadless surface mount package. Covering 0.1 to 30.0 GHz, the insertion loss is less than 4.0 dB typical. The attenuator bit values are 0.5 (LSB), 1, 2, 4, 8 for a total attenuation of 15.5 dB. Attenuation accuracy is excellent at ±0.3 dB typical step error with an IIP3 of +45 dBm. The control interface is CMOS/TTL compatible and accepts a three wire serial input. The HMC1019LP4E features a user selectable power up state and a serialoutput port for cascading other Hittite serial controlled components. Electrical Specifications, TA = +25° C, With Vdd = Vdd1 = +5V, Vss = -5V Parameter Frequency (GHz) Typ. Max. Units 0.1 - 18.0 GHz 18.0 - 26.5 GHz 26.5 - 30.0 GHz 3.0 4.0 5.0 4.5 6.0 6.5 dB dB dB Attenuation Range 0.1 - 30.0 GHz 31 dB Return Loss (RF1 & RF2, All Atten. States) 0.1 - 30.0 GHz 12 dB Insertion Loss Min. Attenuation Accuracy: (Referenced to Insertion Loss) 0.5 - 7.5 dB States 8 - 15.5 dB States 0.1 - 30.0 GHz 0.1 - 30.0 GHz ± (0.3 + 6%) of Atten. Setting Max ± (0.3 + 8%) of Atten. Setting Max Input Power for 0.1 dB Compression 0.1 - 0.5 GHz 0.5 - 30.0 GHz 22 27 dBm dBm Input Third Order Intercept Point (Two-Tone Input Power= 0 dBm Each Tone) 0.1 - 0.5 GHz 0.5 - 30.0 GHz 42 45 dBm dBm Switching Characteristics 0.1 - 30.0 GHz 60 90 ns ns tRISE, tFALL (10/90% RF) tON/tOFF (50% CTL to 10/90% RF) 1 dB dB Idd1 0.1 - 30.0 GHz 2.5 4.5 6.5 mA Iss 0.1 - 30.0 GHz -7.0 -5.0 -3.0 mA For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Normalized Attenuation Insertion Loss vs. Temperature (Only Major States are Shown) 0 INSERTION LOSS (dB) -2 -4 -6 -8 -10 +25 C +85 C -40 C -12 -14 -5 -10 -15 -20 0 5 10 15 20 25 30 35 40 0 5 10 FREQUENCY (GHz) Input Return Loss 25 30 35 40 30 35 40 30 35 40 (Only Major States are Shown) 0 0 -10 -10 RETURN LOSS (dB) RETURN LOSS (dB) 20 Output Return Loss (Only Major States are Shown) -20 -30 -40 -20 -30 -40 0 5 10 15 20 25 30 35 40 0 5 10 FREQUENCY (GHz) 15 20 25 FREQUENCY (GHz) Bit Error vs. Frequency Bit Error vs. Attenuation State (Only Major States are Shown) 1.2 2 5 GHz 10 GHz 18 GHz 26.5 GHz 30 GHz 1.5 15.5 dB BIT ERROR (dB) 0.8 BIT ERROR (dB) 15 FREQUENCY (GHz) Attenuators - Digital - SMT NORMALIZED ATTENUATION (dB) 0 0.4 0 -0.4 1 8 dB 0.5 0 -0.5 -1 -0.8 -1.5 0 4 8 12 ATTENUATION STATE (dB) 16 0 5 10 15 20 25 FREQUENCY (GHz) For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 2 HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Step Attenuation vs. Attenuation State 0.1 - 18 GHz Relative Phase vs. Frequency 1.2 50 1 STEP ATTENUATION (dB) RELATIVE PHASE (deg) 60 40 15.5 dB 30 20 10 0 -10 0.8 0.6 0.4 0.2 5 GHz 10 GHz 18 GHz 0 0 5 10 15 20 25 30 35 -0.2 40 0 FREQUENCY (GHz) 4 8 30 1.2 26 1 P0.1dB (dBm) 0.8 0.6 0.4 0.2 0 26.5 GHz 30 GHz 0 4 8 12 22 18 +25 C +85 C -40 C 14 10 -0.4 6 0.01 16 0.1 Input IP3 Over Major Attenuation States 50 IP3 (dBm) 50 40 30 40 +25 C +85 C -40 C 30 1 FREQUENCY (GHz) 10 100 Input IP3 vs. Temperature 60 0.1 10 (Minimum Attenuation State) 60 20 0.01 1 FREQUENCY (GHz) ATTENUATION STATE (dB) IP3 (dBm) 16 Input Power for 0.1 dB Compression 1.4 -0.2 3 12 ATTENUATION STATE (dB) Step Attenuation vs. Attenuation State 18 - 30 GHz STEP ATTENUATION (dB) Attenuators - Digital - SMT (Only Major States are Shown) 100 20 0.01 0.1 1 10 100 FREQUENCY (GHz) For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz The HMC1019LP4E contains a 3-wire SPI compatible digital interface (SERIN, CLK, LE). The serial control interface is activated when S/A is kept high. The 5-bit serial word must be loaded MSB first as a 6-bit word with the first bit ignored. The positive-edge sensitive CLK and LE requires clean transitions. If mechanical switches are used, sufficient debouncing should be provided. When LE is high, 5-bit data in the serial input register is transferred to the attenuator. When LE is high CLK is masked to prevent data transition during output loading. For all modes of operations, the state will stay constant while LE is kept low. Serial Mode Truth Table Control Voltage Input P4 8 dB P3 4 dB P2 2 dB P1 1 dB P0 0.5 dB Attenuation State RF1 - RF2 High High High High High Reference I.L. High High High High Low 0.5 dB High High High Low High 1 dB High High Low High High 2 dB High Low High High High 4 dB Low High High High High 8 dB Low Low Low Low Low 15.5 dB Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. Parameter Typ. Min. serial period, tSCK 100 ns Control set-up time, tCS 20 ns Control hold-time, tCH 20 ns LE setup-time, tLN 10 ns Min. LE pulse width, tLEW 10 ns Min LE pulse spacing, tLES 630 ns Serial clock hold-time from LE, tCKN 10 ns Hold Time, tPH. 0 ns Latch Enable Minimum Width, tLEN 10 ns Setup Time, tPS 2 ns Attenuators - Digital - SMT Serial Control Interface Asynchronous Mode The HMC1019LP4E can be switched to an asynchronous mode to change the attenuation state rapidly to one of four predefined states. The logic state of ASM1-ASM2 determines one of the four attenuation states in the asynchronous mode per truth table. The asynchronous mode works either directly or latched. To activate the direct-asynchronousmode, S/A needs to be at logic low and LE needs to be at logic high. In the direct-asynchronous-mode, any change in the logic state of ASM1-ASM2 directly affects the attenuation state. In the latched-asynchronous-mode, the attenuation state changes per the asynchronous mode truth table when S/A is at logic low and LE is pulsed per the timing diagram. The attenuation stays constant (latched) as long as LE stays low. In the asynchronous mode, the inputs SERIN and CLK do not affect the attenuation state. For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 4 HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Attenuators - Digital - SMT Timing Diagram (Latched Asynchronous Mode) 5 Asynchronous Mode Truth Table ASM1 ASM2 Attenuation State RF1-RF2 High High Reference I.L. High Low 1.5 dB Low High 14 dB Low Low 15.5 dB PUP Truth Table Power-Up States If LE is set to logic LOW at power-up, the logic state of PUP determines the power-up state of the part per PUP truth table. If the LE is set to logic HIGH at powerup, the logic state of ASM1-ASM2 determines the power-up state of the part per truth table for the asynchronous mode. The attenuator latches in the desired power-up state approximately 200 ms after power-up. PUP Attenuation State High Reference I.L. Low 15.5 dB Note: The logic state of ASM1-ASM2 determines the power-up state of the part per truth table for the asynchronous mode when LE is high at power-up. Control Voltage Bias Voltages & Currents +5V @ 0.2 mA State Bias Condition Vdd1 +5V @ 4.5 mA Low 0 to 0.8V @ 1 µA Vss -5V @ 5 mA High 2 to 5V @ 1 µA Vdd For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Absolute Maximum Ratings +27 dBm Control Voltage (CLK, SERIN, LE, PUP, ASM1, ASM2, S/A) Vdd + 0.5V Vdd, Vdd1 +7 Vdc Vss -7 Vdc Channel Temperature 150 °C Continuous Pdiss (T = 85 oC) (derate 6.8 mW/oC above 85 oC) 0.445 W Thermal Resistance 146 °C/W Storage Temperature -65 to + 150 °C Operating Temperature -40 to +85 °C ESD Sensitivity (HBM) Class 1A ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Attenuators - Digital - SMT RF Input Power (0.1 to 30.0 GHz) Outline Drawing NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM. PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm. 6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. 7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN. Package Information Part Number Package Body Material Lead Finish HMC1019LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL Rating MSL1 [1] Package Marking [2] H1019 XXXX [1] Max peak reflow temperature of 260 °C [2] 4-Digit lot number XXXX For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 6 HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Attenuators - Digital - SMT Pin Descriptions 7 Pad Number Function Description 1 2 SERIN LE See truth table, control voltage table and timing diagram. 3 Vss Negative Bias -5V 4, 15 GND These pins and package bottom must be connected to RF/DC ground. 6-13, 16 N/C The pins are not connected internally; however, all data shown herein was measured with these pins connected to RF/DC ground externally. 5, 14 RF1, RF2 These pins are DC coupled and matched to 50 Ohm. Blocking capacitors are required if RF line potential is not equal to 0V. 17 Vdd1 Positive Bias +5V 18 SEROUT Serial input data delayed by 6 clock cycles. 19 21 22 23 24 PUP ASM1 ASM2 S/A CLK See truth table, control voltage table and timing diagram. 20 Vdd Serial Controller Bias +5V Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Attenuators - Digital - SMT Application Circuit For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 8 HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Attenuators - Digital - SMT Evaluation PCB List of Materials for Evaluation PCB EVAL01-HMC1019LP4E [1] Item Description J1, J2 2.9 mm PC Mount RF Connector J3, J4, J6 DC Connector J5 2mm DC Header C1-C3 100 pF Capacitor, 0402 Pkg. C4-C6 1000 pF Capacitor, 0402 Pkg. U1 HMC1019LP4E Digital Attenuator PCB [2] 600-00196-00-2 Evaluation Board The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 9 For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC1019LP4E v00.0911 0.5 dB LSB GaAs MMIC 5-BIT DIGITAL ATTENUATOR, 0.1 - 30 GHz Attenuators - Digital - SMT Notes: For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 10