Overview
The HMC739LP4ETR from Analog Devices Inc. is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) Monolithic Microwave Integrated Circuit (MMIC) Voltage-Controlled Oscillator (VCO). This device integrates a resonator, negative resistance device, varactor diode, and a divide-by-16 prescaler, making it a comprehensive solution for various high-frequency applications. The VCO is known for its excellent phase noise performance over temperature, shock, and process variations due to its monolithic structure. It is packaged in a low-cost, leadless QFN 4x4 mm surface mount package, which is RoHS-compliant.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Frequency Range (Fo) | 23.8 | - | 26.8 | GHz |
| Frequency Range (Fo/2) | 11.9 | - | 13.4 | GHz |
| Power Output (RF OUT) | - | +8 | - | dBm |
| Power Output (RF OUT/2) | - | +5 | - | dBm |
| Power Output (RF OUT/16) | - | -1 | - | dBm |
| SSB Phase Noise @ 100 kHz Offset | - | -93 | - | dBc/Hz |
| Tune Voltage (Vtune) | 1 | - | 13 | V |
| Supply Current (Icc RF), (Icc DIG) | 160 | 200 | 220 | mA |
| Tune Port Leakage Current (Vtune=13V) | - | 10 | - | µA |
| Output Return Loss | - | 3 | - | dB |
| Harmonics/Subharmonics (1/2, 3/2) | -20 | - | -30 | dBc |
| Pulling (into a 2.0:1 VSWR) | - | 30 | - | MHz pp |
| Pushing @ Vtune=5V | - | -65 | - | MHz/V |
| Frequency Drift Rate | - | 4 | - | MHz/°C |
Key Features
- Monolithic structure ensuring excellent phase noise performance over temperature, shock, and process variations.
- Integrated resonator, negative resistance device, varactor diode, and divide-by-16 prescaler.
- Triple output options: standard frequency (Fo), half frequency (Fo/2), and divided-by-16 frequency (Fo/16).
- Power output of +8 dBm typical from a 5V supply voltage.
- Low-cost, leadless QFN 4x4 mm surface mount package.
- No external resonator needed.
- RoHS-compliant.
Applications
- Point-to-Point Radios
- Point-to-Multi-Point Radios / Local Multipoint Distribution Service (LMDS)
- Very Small Aperture Terminals (VSAT)
Q & A
- What is the frequency range of the HMC739LP4ETR?
The frequency range of the HMC739LP4ETR is 23.8 GHz to 26.8 GHz.
- What are the output options available for this VCO?
The HMC739LP4ETR provides three output options: standard frequency (Fo), half frequency (Fo/2), and divided-by-16 frequency (Fo/16).
- What is the typical power output of the HMC739LP4ETR?
The typical power output is +8 dBm from a 5V supply voltage.
- What is the phase noise performance of the HMC739LP4ETR?
The phase noise performance is -93 dBc/Hz at 100 kHz offset.
- Does the HMC739LP4ETR require an external resonator?
No, the HMC739LP4ETR does not require an external resonator.
- What is the package type and size of the HMC739LP4ETR?
The device is packaged in a low-cost, leadless QFN 4x4 mm surface mount package.
- Is the HMC739LP4ETR RoHS-compliant?
Yes, the HMC739LP4ETR is RoHS-compliant.
- What are the typical supply currents for the RF and digital sections?
The typical supply currents are 200 mA for both the RF and digital sections.
- What is the frequency drift rate of the HMC739LP4ETR?
The frequency drift rate is 4 MHz/°C.
- What are some common applications for the HMC739LP4ETR?
Common applications include point-to-point radios, point-to-multi-point radios/LMDS, and VSAT.
