601LP4E

HMC601LP4 / 601LP4E v01.0509 75 dB, FAST SETTLING, LOGARITHMIC DETECTOR / CONTROLLER 10 - 4000 MHz Typical Applications The HMC601LP4(E) is ideal for IF and RF applications in: • Cellular/PCS/3G • WiMAX, WiBro & Fixed Wireless • Power Monitoring & Control Circuitry • Receiver Signal Strength Indication (RSSI) • Automatic Gain & Power Control Circuits Features Wide Dynamic Range: up to 75 dB Fast Pulse Response: 15/34ns (Rise/Fall Time) Flexible Supply Voltage: +2.7V to +5.5V Power-Down Mode Excellent Stability over Temperature Compact 4x4mm Leadless SMT Package 12 POWER DETECTORS - SMT Functional Diagram General Description The HMC601LP4(E) Logarithmic Detector/Controller converts RF signals at its input, to a proportional DC voltage at its output. The HMC601LP4(E) employ a successive compression topology which delivers extremely high dynamic range and conversion accuracy over a wide input frequency range. As the input power is increased, successive amplifiers move into saturation one by one creating an accurate approximation of the logarithm function. The output of a series of square law detectors is summed, converted into voltage domain and buffered to drive the LOGOUT output. For detection mode, the LOGOUT pin is shorted to the VSET input, and will provide a nominal logarithmic slope of 19mV/dB and an intercept of -100dBm. The HMC601LP4(E) can also be used in the controller mode where an external voltage is applied to the VSET pin, to create an AGC or APC feedback loop. The HMC601LP4(E) provides a 15/34ns (rise/fall time) response time enabling RF burst detection to a pulse rate beyond 20 MHz. Electrical Specifi cations, TA = +25C, PWD = 0V, Vcc1, Vcc2 = +3.3V [1] Parameter Input Frequency ±3 dB Dynamic Range ±3 dB Dynamic Range Center ±1 dB Dynamic Range Output Slope Output Intercept Temperature Sensitivity @ -10 dBm Input [2] Typ. 50 74 -31 68 19.5 -99 -4.2 Typ. 100 74 -31 68 19.4 -99 -3.8 Typ. 500 74 -31 69 19.2 -100 -3.5 Typ. 900 74 -31 69 19.1 -100 -2.4 Typ. 1900 70 -31.5 67 19.0 -98 -0.8 Typ. 2500 68 -31.5 65 19.4 -96 -0.8 Typ. 3500 54 -27 47 20.9 -85 -4.4 Typ. 4000 52 -23 46 19.6 -79 -3.5 Units MHz dB dBm dB mV/dB dBm mdB/°C [1] Detector mode measurements; LOGOUT (Pin 17) is shorted to VSET (Pin 16). [2] Measured from TA = - 40C to TA = +85C Parameter RF Input (INP) Return Loss LOGOUT Interface Open Loop Impedance (Simulated) 12 kΩ F = 10 - 4000 MHz, Zo = 50Ω, See plot 10 dB Conditions Min. Typ. Max. Units 12 - 10 F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC601LP4 / 601LP4E v01.0509 75 dB, FAST SETTLING, LOGARITHMIC DETECTOR / CONTROLLER 10 - 4000 MHz Electrical Specifi cations, (continued) Parameter Current Drive (Source) Current Drive (Sink) Output Voltage Range Small Signal Response Time (10% to 90%) Large Signal Response Time (±0.5 dB Settling) Output Rise Time Ripple VSET Interface Input Impedance Input Voltage Range Low Frequency Gain Open Loop Corner Frequency Power Down (PWD) Interface Voltage Range for Normal Mode Voltage Range for Shutdown Mode Threshold Voltage Power-up Response Time Power-Down Response Time Power Supply (Vcc1, Vcc2) Operating Voltage Range Supply Current in Normal Mode Supply Current in Power Down Mode Vcc = +3.3V, PWD = 0V Vcc = +3.3V, PWD = Vcc 2.7 30 1 5.5 36 V mA mA 50% PWD to ±0.5 dB Settling of LOGOUT 50% PWD to 10% Icc 0 0.8 x Vcc Vcc/2 19.9 2.2 0.2 x Vcc Vcc V V V μs μs VSET to LOGOUT 30 0.6 to 1.9 75 4.4 kΩ V dB kHz Pin = -60 to -57 dBm Pin = No Signal to 0 dBm From 0% to 90% Fin = 100 MHz For 1% change in the output voltage 0 8 50 15 0.8xVcc to initiate a power saving shutdown mode. 14 PWD To ensure proper start-up apply the power-up sequence shown in the “Power-Up Timing Diagram” attached to the application circuit. 16 VSET VSET input in controller mode. Short this pin to LOGOUT for detector mode. 17 LOGOUT Logarithmic output that converts the input power to a DC level in detector mode. Short this pin to VSET for detector mode. Package Base GND Exposed paddle must be connected to RF and DC ground. F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC601LP4 / 601LP4E v01.0509 75 dB, FAST SETTLING, LOGARITHMIC DETECTOR / CONTROLLER 10 - 4000 MHz Evaluation PCB 12 POWER DETECTORS - SMT List of Materials for Evaluation PCB 115242 [1] Item J1 - J4 J5 - J8 C1, C2 C3, C4 R1, R2 R3-R5 U1 PCB [2] Description PC Mount SMA Connector DC Pin 1000 pF Capacitor, 0402 Pkg. 0.1μF Capacitor, 0402 Pkg. 5.6Ω Resistor, 0603 Pkg. 0Ω Resistor, 0603 Pkg. HMC601LP4 / HMC601LP4E Logarithmic Detector / Controller 115244 Evaluation PCB The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package 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 12 - 16 F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC601LP4 / 601LP4E v01.0509 75 dB, FAST SETTLING, LOGARITHMIC DETECTOR / CONTROLLER 10 - 4000 MHz Application & Evaluation PCB Schematic 12 POWER DETECTORS - SMT 12 - 17 Notes Note 1: The HMC601LP4 & HMC601LP4E evaluation boards are pre-assembled for single-ended input, and detector/RSSI mode. Note 2: For single-ended input operation, use the INP port and make no connection to INN. INN is AC coupled to ground by C2 Note 3: For differential input, remove C2, and install a 1000pF capacitor in series with INN at location shown. Note 4: For detector mode, connect high impedence volt meter to the LOGOUT port, and make no connection to VSET. LOGOUT is shorted to VSET by R3, as required for detector mode. Note 5: For controller mode, remove R3 and make appropriate connection to LOGOUT and VSET. In controller mode, the LOGOUT output can be used to drive a variable gain amplifier, or a variable attenuator, either directly or through a buffer or microcontroller. VSET should be connected to an external supply, typically between +0.6 and +1.9V. Power-Up Timing Diagram F or price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com