HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Typical Applications Features The HMC948LP3E is ideal for: Wide Input Bandwidth: 1 to 23 GHz • Point-to-Point Microwave Radio Wide Dynamic Range: 54 dB up to 23 GHz • VSAT Single Positive Supply: +3.3V • Wideband Power Monitoring Excellent Stability Over Temperature • Receiver Signal Strength Indication (RSSI) Fast Rise / Fall Time: 5 / 7 ns • Test & Measurement 16 Lead 3x3 mm SMT Package: 9 mm² Functional Diagram General Description Power Detectors - SMT 11 The HMC948LP3E Logarithmic Detector converts RF signals at its input, to a proportional DC voltage at its output. The HMC948LP3E employs successive compression topology which delivers high dynamic range over a wide input frequency range. As the input power is increased, successive amplifiers move into saturation one by one creating an approximation of the logarithm function. The output of a series of square law detectors is summed, converted into the voltage domain and buffered to drive the LOG OUT output. The HMC948LP3E provides a nominal logarithmic slope of +14.2 mV/dB and an intercept of -111 dBm at 23 GHz. Ideal as a log detector for high volume microwave radio and VSAT applications, the HMC948LP3E is housed in a compact 3x3 mm RoHS compliant SMT plastic package. Electrical Specifications, TA = +25 C Vcc = +3.3V Parameter 11 - 1 Typ. Typ. Typ. Typ. Typ. Typ. Typ. Units Input Frequency 1 5 10 14 18 20 23 GHz ±3 dB Dynamic Range 53 54 54 55 55 55 55 dB ±3 dB Dynamic Range Center -23 -25 -24 -22 -20 -15 -15 dBm Log Error Over Temperature (-40 to +85) ±1 ±1 ±1 ±1.5 ±1.5 ±1.5 ±1.5 dB Output Intercept -104 -107 -109 -112 -113 -108 -111 dBm Output Slope 16.8 16.7 15.9 15.2 14.6 14.4 14.2 mV/dB For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Electrical Specifications, (continued) Parameter Conditions Min. Typ. Max. Units LOGOUT Interface Output Voltage Range 0.9 Output Rise Time [1] / Fall Time [2] 1.8 f = 10 GHz V 5/7 ns Power Supply (Vcc) Operating Voltage Range 3.15 3.3 Supply Current in Normal Mode 3.45 V 91 mA [1] 0 dBm Input Pulsed; measured from 10% to 90% [2] 0 dBm Input Pulsed; measured from 90% to 10% LOG OUT & Error vs. Input Power, Fin = 1 GHz LOG OUT & Error vs. Input Power, Fin = 5 GHz 3 2 -1 1 ERR +25 C ERR +85 C ERR -40 C -50 -40 -30 -20 -10 0 1 1.5 0 -1 1 ERR +25 C ERR +85 C ERR -40 C -2 -3 0.5 -60 -50 -40 3 0 10 3 Ideal Log Out +25 C Log Out +85 C Log Out -40 C 1 1.5 -1 1 ERR +25 C ERR +85 C ERR -40 C -10 0 INPUT POWER (dBm) 1 1.5 0 -1 1 -2 -3 0.5 10 2 -2 ERR +25 C ERR +85 C ERR -40 C -3 0.5 -60 ERROR (dB) 0 LOG OUT (V) 2 -20 -10 2 ERROR (dB) LOG OUT (V) Ideal Log Out +25 C Log Out +85 C Log Out -40 C -30 -20 LOG OUT & Error vs. Input Power, Fin = 14 GHz 2 -40 -30 INPUT POWER (dBm) LOG OUT & Error vs. Input Power, Fin = 10 GHz -50 -2 -3 0.5 10 INPUT POWER (dBm) -60 2 ERROR (dB) 0 LOG OUT (V) 1 1.5 -60 Ideal Log Out +25 C Log Out +85 C Log Out -40 C 2 ERROR (dB) LOG OUT (V) Ideal Log Out +25 C Log Out +85 C Log Out -40 C 3 2 power detectors - SMT 11 -50 -40 -30 -20 -10 0 10 INPUT POWER (dBm) Unless otherwise noted: Vcc = +3.3V, TA = +25 °C For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] 11 - 2 HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz LOG OUT & Error vs. Input Power, Fin = 18 GHz LOG OUT & Error vs. Input Power, Fin = 20 GHz 3 2 0 -1 1 -40 -30 -20 -10 0 -1 1 0 -3 0.5 10 -60 -50 LOG OUT & Error vs. Input Power, Fin = 23 GHz 1.5 3 2 2 1.75 1 1.5 0 -1 1 ERR +25 C ERR +85 C ERR -40 C -2 -3 0.5 -30 -20 -10 0 INPUT POWER (dBm) 10 LOG OUT (V) LOG OUT (V) Ideal Log Out +25 C Log Out +85 C Log Out -40 C -40 -30 -20 -10 0 10 -10 0 10 LOG OUT vs. Frequency 2 -50 -40 INPUT POWER (dBm) ERROR (dB) Power Detectors - SMT INPUT POWER (dBm) -60 -2 ERR +25 C ERR +85 C ERR -40 C -3 0.5 -50 1 1.5 -2 ERR +25 C ERR +85 C ERR -40 C -60 LOG OUT (V) 1 1.5 2 1 GHz 5 GHz 10 GHz 14 GHz 18 GHz 20 GHz 23 GHz 1.25 1 0.75 0.5 -60 -50 -40 -30 -20 INPUT POWER (dBm) Unless otherwise noted: Vcc = +3.3V, TA = +25 °C 11 - 3 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] ERROR (dB) 11 Ideal Log Out +25 C Log Out +85 C Log Out -40 C 2 ERROR (dB) LOG OUT (V) Ideal Log Out +25 C Log Out +85 C Log Out -40 C 3 2 HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Rise Time for Various Frequencies @ 0 dBm Fall Time for Various Frequencies @ 0 dBm 1.8 1.8 2 GHz 10 GHz 18 GHz 1.4 1.2 1 1.4 1.2 1 0 20 40 60 80 0.8 100 0 20 40 TIME (ns) 60 80 100 11 TIME (ns) Input Return Loss RETURN LOSS (dB) 0 -5 -10 -15 -20 +25 C +85 C -40 C 0 5 10 15 20 25 30 FREQUENCY (GHz) power detectors - SMT 0.8 2 GHz 10 GHz 18 GHz 1.6 LOG OUT (V) LOG OUT (V) 1.6 Unless otherwise noted: Vcc = +3.3V, TA = +25 °C For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] 11 - 4 HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Absolute Maximum Ratings Power Detectors - SMT 11 Vcc +3.6V RF Input Power +15 dBm Junction Temperature 125 °C Continuous Pdiss (T = 85°C) (Derate 11.62 mW/°C above 85°C) 0.46W Thermal Resistance (Rth) (junction to ground paddle) 86.09 °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 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 HMC APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN. Package Information Part Number Package Body Material Lead Finish HMC948LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL Rating MSL1 [2] Package Marking [1] 948 XXX [1] 4-Digit lot number XXXX [2] Max peak reflow temperature of 260 °C 11 - 5 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Pin Descriptions Function Description 1, 4, 5, 8, 9, 10, 12 N/C No connection necessary. These pins may be connected to RF/DC ground without affecting performance. 2 RFIN RF input pin. 3, 6, 7 GND These pins and the exposed package bottom must be connected to a high quality RF/DC ground. 11 LOG OUT Log out. These pins should be connected to each other through a 0 ohm resistor. See application circuit. 13 - 16 Vcc Bias Supply. Connect supply voltage to these pins with appropriate filtering. Interface Schematic For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] 11 power detectors - SMT Pin Number 11 - 6 HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Application & Evaluation PCB Schematic Power Detectors - SMT 11 11 - 7 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] HMC948LP3E v00.0910 54 dB, LOGARITHMIC DETECTOR, 1 - 23 GHz Evaluation PCB List of Materials for Evaluation PCB 132032 [1] Item Description J1 K-Type Connector J2 SMA Connector J3, J4 DC Pin C1 5 pF Capacitor, 0402 Pkg. C2, C3 10 nF Capacitor, 0402 Pkg. C4 4.7 µF Tantalum Capacitor, CASE A Pkg. U1 HMC948LP3E Log Detector PCB [2] 600-00008-00 Evaluation PCB power detectors - SMT 11 The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the pckage ground leads and exposed paddle 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 or Arlon 25 FR For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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] 11 - 8