Low Noise Integer N PLL Frequency Synthesizer With Integrated VCO
Product details
Parameters
Package | Pins | Size
Features
- 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
Description
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.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | TRF3761-x Integer-N PLL with Integrated VCO datasheet (Rev. K) | Dec. 31, 2015 |
| Application note | TRF3761 QFN Installation Using a Hakko Hot Air Rework Station | Apr. 07, 2007 | |
| Application note | Fractional/Integer-N PLL Basics | May 13, 1998 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Software development
Design tools & simulation
Features
- Supports integer or fractional PLL modes
- Plots open and closed loop gain and phase margin
- Plots PLL phase noise
- Supports user defined component values for gain, phase, and phase noise plots
- Support for Windows 7 or Windows XP (SP 2 is recommended)
Features
- Calculates loop filter circuit component values based on desired output frequency
- Identifies TRF3761-x device variant selection based on desired output frequency
- Identifies appropriate device divide-by mode required for desired output frequency
- Provides additional information regarding parameter (...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VQFN (RHA) | 40 | View options |
Ordering & quality
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- REACH
- Device marking
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- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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