具有集成 VCO 的低噪声整数 N PLL 频率合成器
| Integrated VCO | Yes |
| Output frequency (Min) (MHz) | 1805 |
| Output frequency (Max) (MHz) | 1936 |
| Normalized PLL phase noise (dBc/Hz) | -137 |
| Current consumption (mA) | 130 |
- Fully Integrated VCO
- Low Phase Noise: –137dBc/Hz (at 600kHz, fVCO
of 1.9GHz) - Low Noise Floor: –158dBc/Hz at 10MHz Offset
- Integer-N PLL
- Input Reference Frequency range: 10MHz to
104MHz - VCO Frequency Divided by 2-4 Output
- Output Buffer Enable Pin
- Programmable Charge Pump Current
- Hardware and Software Power Down
- 3-Wire Serial Interface
- Single Supply: 4.5V to 5.25V Operation
TRF3761 is a family of high performance, highly integrated frequency synthesizers, optimized for high performance applications. The TRF3761 includes a low-noise, voltage-controlled oscillator (VCO) and an integer-N PLL.
TRF3761 integrates divide-by 1, 2, or 4 options for a more flexible output frequency range. It is controlled through a 3-wire serial-programming-interface (SPI) interface. For power sensitive applications the TRF3761 can be powered down by the SPI interface or externally via chip_en pin 2.
