RFVC1825 RFVC1825 Low Noise MMIC VCO with Buffer Amplifier RFMD’s RFVC1825 is a 3V InGaP MMIC VCO with an integrated buffer amplifier operating over a frequency range of 7.8GHz to 8.7GHz. Its monolithic tuning structure provides excellent temperature, shock, and vibration performance while its integrated buffer amplifier provides an output power of +11dBm from a 3V supply. Phase noise is -107dBc/Hz at 100kHz offset. The RFVC1825 is available in a low cost leadless ceramic 4mm x 4mm surface mount QFN outline. Package: QFN, 24-pin, 4mm x 4mm Features ■ 7.8GHz to 8.7GHz Operation ■ -107dBc/Hz Phase Noise at 100kHz Offset ■ +11.0dBm POUT ■ No External Resonator or Elements Needed ■ 4mm x 4mm QFN Package ■ 3V VCC Operation Applications Functional Block Diagram ■ Instrumentation ■ Military ■ Aerospace ■ Point-to-Point Radio ■ Test Equipment ■ VSAT ■ CATV Ordering Information RFVC1825S2 Sample bag with 2 pieces RFVC1825SB Bag with 5 pieces RFVC1825SQ Bag with 25 pieces RFVC1825SR 7" Reel with 100 pieces RFVC1825TR7 7" Reel with 750 pieces RFVC1825PCK-410 PCBA with 2-piece sample bag RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. ® DS140502 ® RF MICRO DEVICES and RFMD are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks, and registered trademarks are the property of their respective owners. ©2013, RF Micro Devices, Inc. 1 of 6 RFVC1825 Absolute Maximum Ratings Parameter Rating Unit +3.25 VDC VTUNE (VT) 14 VDC Operating Junction Temperature (TJ) 99 °C Continuous Power Dissipation (T = +85°C) 200 mW Thermal Resistance (Pad to Die Bottom) 10 °C/W Operating Temperature Range -40 to +85 °C Storage Temperature Range -55 to +150 °C Bias Voltage (VDD) ESD JESD22-A114 Human Body Model (HBM) Class 0, 150V Caution! ESD sensitive device. RFMD Green: RoHS status based on EU Directive 2011/65/EU (at time of this document revision), halogen free per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a flame retardant, and <2% antimony in solder. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. Nominal Operating Parameters Specification Parameter Unit Min Typ Condition Max TA = +25°C, VCC = +3.0VDC General Performance Operating Frequency 7.8 8.7 GHz 0 12 V 1.0 µA At VTUNE = 10V 11 dBm At VTUNE = 5V Phase Noise at 10kHz Offset -80 dBc/Hz Phase Noise at 100kHz Offset -107 dBc/Hz 2nd -10 dBc rd -25 dBc Tuning Voltage (VTUNE) VTUNE Leakage Current Output Power 0.36 5 Harmonics 3 Output Spurious -70 RF Output Return Loss 10 Supply Current 67 Pulling Pushing Frequency Drift Rate At VTUNE = 5V dBc dB 80 mA At VTUNE = 5V 1.6 MHz VSWR 2.5:1 all phases -47 MHz/V At VTUNE = 5V -0.53 MHz/°C RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS140502 The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. 2 of 6 RFVC1825 Typical Electrical Performance RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS140502 The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. 3 of 6 RFVC1825 Pin Names and Descriptions Pin Name 1-14 Description N/C No internal connection. Connect to PCB ground. 15 GND Connect directly to PCB ground for best performance. 16 RFOUT Interface Schematic RF out. This pad is AC coupled and matched for optimum POUT. A 50Ω termination is recommended for this pin. 17-19 N/C No internal connection. Connect to PCB ground. 20 VCC Connect 3V to power both the oscillator core and the buffer amplifier. 21 N/C No internal connection. Connect to PCB ground. 22 VTUNE 23-24 N/C No internal connection. Connect to PCB ground. PKG BASE GND Ground connection. Solder package bottom directly to ground plane for best performance. Direct connection to the varactor diodes used to vary the frequency of oscillation. RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS140502 The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. 4 of 6 RFVC1825 Package Drawing (Dimensions in millimeters) Notes: 1. Dimensions are for reference only. 2. Package body material: Alumina. 3. Lead and paddle plating: Au, 30µm minimum. Recommended PCB Layout RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS140502 The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. 5 of 6 RFVC1825 Application Circuit Block Diagram Evaluation Board Layout RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected]. DS140502 The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. 6 of 6