HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Typical Applications Features Low noise MMIC VCO w/Divide-by-8 for Ku-Band applications such as: Pout: +7 dBm • Point-to-Point Radios • Point-to-Multi-Point Radios / LMDS • VSAT Phase Noise: -105 dBc/Hz @100 KHz Typ. No External Resonator Needed Single Supply: 5V @ 325 mA QSOP16G SMT Package Functional Diagram General Description The HMC398QS16G & HMC398QS16GE are single chip GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs. The HMC398QS16G & HMC398QS16GE integrate resonators, negative resistance devices, varactor diodes and divide-by-8 prescalers. The VCO’s phase noise performance is excellent over temperature, shock, and process due to the oscillator’s monolithic structure. Power output is +7 dBm typical from a 5V supply voltage. The voltage controlled oscillator is packaged in a low cost, surface mount 16 leaded QSOP package with an exposed base for improved RF and thermal performance. The HMC398QS16G & HMC398QS16GE require no external components VCOS & PLOs - SMT 11 Electrical Specifi cations, TA = +25° C, Vcc1, Vcc2 = +5.0V Parameter Min. Frequency Range Power Output RF Output Divided Output +3 -9 Vtune 1.0 SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output Tune Voltage Supply Current Typ. +7 -6 dBm dBm -105 Icc 1 (Digital) Icc 2 (RF) dBc/Hz 10.0 65 260 V mA mA 10 Output Return Loss Units GHz Tune Port Leakage Current (Vtune= 10V) µA 2 dB -20 -30 -12 -40 dBc dBc dBc dBc Pulling (into a 2.0:1 VSWR) 4 MHz pp Pushing @ Vtune= 5V 30 MHz/V Frequency Drift Rate 1.5 MHz/°C Harmonics/Subharmonics 11 - 50 Max. 14.0 - 15.0 1/2 3/2 2nd 5/2 For 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 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Frequency vs. Tuning Voltage, Vcc= +5V 15.4 15.4 15.2 15.2 OUTPUT FREQUENCY (GHz) 15 14.8 14.6 14.4 Vcc= 4.75V Vcc= 5.0V Vcc= 5.25V 14.2 14 15 14.8 14.6 14.4 +25 C +85 C -40 C 14.2 14 13.8 13.8 1 2 3 4 5 6 7 8 9 10 1 2 3 4 TUNING VOLTAGE (VOLTS) 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS) Sensitivity vs. Tuning Voltage, Vcc= +5V 11 Output Power vs. Tuning Voltage, Vcc= +5V 15 400 300 OUTPUT POWER (dBm) SENSITIVITY (MHz/VOLT) 350 +25 C +85 C -40 C 250 200 150 100 12 9 6 +25 C +85 C -40 C 3 50 0 0 1 2 3 4 5 6 7 8 9 1 10 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS) TUNING VOLTAGE (VOLTS) SSB Phase Noise vs. Tuning Voltage VCOS & PLOs - SMT OUTPUT FREQUENCY (GHz) Frequency vs. Tuning Voltage, T= 25°C SSB Phase Noise @ Vtune= 5V 0 -60 -70 SSB PHASE NOISE (dBc/Hz) SSB PHASE NOISE (dBc/Hz) -15 -80 10 kHz offset 100 kHz offset -90 -100 -110 -30 +25 C +85 C -40 C -45 -60 -75 -90 -105 -120 -135 -120 1 2 3 4 5 6 7 TUNING VOLTAGE (VOLTS) 8 9 10 -150 3 10 4 10 5 10 6 10 7 10 OFFSET FREQUENCY (Hz) For 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 11 - 51 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Divided Output Power vs. Tuning Voltage, Vcc= +5V* 0 1.94 1.92 DIVIDED OUTPUT POWER (dBm) DIVIDED OUTPUT FREQUENCY (GHz) Divided Output Frequency vs. Tuning Voltage, Vcc= +5V 1.9 1.88 1.86 1.84 1.82 1.8 1.78 +25 C +85 C -40 C 1.76 1.74 1.72 1 2 3 -3 +25 C +85 C -40 C -4 -5 -6 -7 -8 -9 4 5 6 7 8 9 10 1 2 3 TUNING VOLTAGE (VOLTS) 4 5 6 7 8 TUNING VOLTAGE (VOLTS) Divided Output SSB Phase Noise @ Vtune = 5V SSB PHASE NOISE (dBc/Hz) VCOS & PLOs - SMT -2 -10 1.7 11 -1 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 3 10 4 10 5 10 6 10 7 10 OFFSET FREQUENCY (Hz) *Note: Tuning voltage must not drop below 1.0V for proper divider output. 11 - 52 For 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 9 10 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Absolute Maximum Ratings Typical Supply Current vs. Vcc Vcc1, Vcc2 +5.5 Vcc (V) Icc (mA) Storage Temperature -65 to +150 °C 4.75 300 Operating Temperature -40 to +85 °C 5.0 325 Vtune 0 to 11V 5.25 350 Note: VCO will operate over full voltage range shown above. ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing VCOS & PLOs - SMT 11 NOTES: 1. LEADFRAME MATERIAL: COPPER ALLOY 2. DIMENSIONS ARE IN INCHES [MILLIMETERS] 3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE. 4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE. 5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO PCB RF GROUND. Package Information Part Number Package Body Material Lead Finish MSL Rating HMC398QS16G Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 HMC398QS16GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 Package Marking [3] [1] H398 XXXX [2] H398 XXXX [1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX For 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 11 - 53 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Pin Descriptions VCOS & PLOs - SMT 11 11 - 54 Pin Number Function Description 1 RFOUT RF output (AC coupled). 2, 3, 4, 6, 8, 9, 10, 13, 14, 16 N/C No Connection 5 VTUNE Control Voltage Input. Modulation port bandwidth dependent on drive source impedance. 7, 15 VCC1, VCC2 Supply Voltage, 5V 11 OUT Divided Output 12 NOUT Divided Output 180° output phase with pin 11. GND Package bottom has an exposed metal paddle that must be RF & DC grounded. Interface Schematic For 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 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Evaluation PCB VCOS & PLOs - SMT 11 List of Materials for Evaluation PCB 104711 [1] Item Description J1 - J4 PCB Mount SMA RF Connector J5 - J6 2 mm DC Header C1 - C2 10 μF Tantalum Capacitor C3 - C6 1,000 pF Capacitor 0402 Pkg. U1 HMC398QS16G / HMC398QS16GE VCO PCB [2] 104436 Eval Board [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350 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 backside ground slug 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. For 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 11 - 55 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Typical Application Circuit VCOS & PLOs - SMT 11 11 - 56 For 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 HMC398QS16G / 398QS16GE v02.0805 Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz Notes: VCOS & PLOs - SMT 11 For 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 11 - 57