Overview
The HMC835LP6GETR, produced by Analog Devices Inc., is a high-performance, low-noise, wideband Fractional-N Phase-Locked Loop (PLL) with an integrated Voltage Controlled Oscillator (VCO). This device is designed to generate frequencies ranging from 33 MHz to 4100 MHz, making it suitable for a variety of high-frequency applications. The integrated VCO operates at fundamental frequencies between 2050 MHz and 4100 MHz, and the device includes an integrated VCO Output Divider, enabling flexible frequency generation. The HMC835LP6GETR features advanced phase detection and delta-sigma modulation, allowing for wide loop-bandwidths and excellent spectral performance.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| Output Frequency | 33 | - | 4100 | MHz |
| VCO Frequency at PLL Input | 2050 | - | 4100 | MHz |
| Maximum Phase Detector Rate | - | 100 | - | MHz |
| Phase Noise (in Band @2GHz) | -110 | - | - | dBc/Hz |
| PLL Figure of Merit (FOM) | -230 | - | -227 | dBc/Hz |
| Integrated RMS Jitter (1 kHz to 100 MHz) | - | <94 | - | fs |
| Output Power (Differential, 100 Ohm load) | - | - | 5 | dBm |
| Output Power Control Range | - | - | 9 | dB (3 dB steps) |
Key Features
- Wideband operation: 33 MHz to 4100 MHz
- Integrated VCO with fundamental frequency of 2050 MHz to 4100 MHz
- Integrated VCO Output Divider (divide by 2/4/6.../60/62)
- Maximum Phase Detector Rate of 100 MHz
- Low phase noise: -110 dBc/Hz in band @2GHz
- Low integrated RMS jitter: <94 fs (1 kHz to 100 MHz)
- Two independent RF outputs with independent gain control
- External VCO input for cascaded LO architectures
- Programmable RF output phase for phase adjustment and synchronization
- Configurable output mute function during frequency changes
- Exact Frequency Mode for generating fractional frequencies with 0 Hz frequency error
Applications
- Cellular Infrastructure
- Microwave Radio
- WiMax, WiFi
- Communications Test Equipment
- CATV Equipment
- MIMO radio applications
- Beam-forming radio architectures
Q & A
- What is the frequency range of the HMC835LP6GETR? The HMC835LP6GETR generates frequencies ranging from 33 MHz to 4100 MHz.
- What is the fundamental frequency range of the integrated VCO? The integrated VCO operates at fundamental frequencies between 2050 MHz and 4100 MHz.
- What is the maximum phase detector rate of the HMC835LP6GETR? The maximum phase detector rate is 100 MHz.
- What is the phase noise performance of the HMC835LP6GETR? The phase noise is -110 dBc/Hz in band @2GHz.
- How many RF outputs does the HMC835LP6GETR have, and are they independent? The device has two independent RF outputs with independent gain control.
- Can the HMC835LP6GETR be used in MIMO radio applications? Yes, it supports MIMO radio applications with programmable RF output phase for phase adjustment and synchronization.
- What is the Exact Frequency Mode feature? The Exact Frequency Mode enables the generation of fractional frequencies with 0 Hz frequency error.
- How does the output mute function work? The configurable output mute function mutes RF outputs during frequency changes.
- Can the HMC835LP6GETR be used with external VCOs? Yes, it has an external VCO input for cascaded LO architectures.
- What is the typical integrated RMS jitter of the HMC835LP6GETR? The integrated RMS jitter is less than 94 fs (1 kHz to 100 MHz).
