The ADF4155 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter, external voltage controlled oscillator (VCO), and external reference frequency.
The ADF4155 is for use with external VCO parts up to an 8 GHz operating frequency. The high resolution programmable modulus allows synthesis of exact frequencies with 0 Hz error.
The VCO frequency can be divided by 1, 2, 4, 8, 16, 32, or 64 to allow the user to generate RF output frequencies as low as 7.8125 MHz.
Control of all on-chip registers is through a simple 3-wire interface. The device operates with a nominal power supply of 3.3 V ± 5% and can be powered down when not in use.
The ADF4155 is available in a 24-lead, 4 mm × 4 mm LFCSP package.
Applications
Features and Benefits
| Clock & TimingRF & MicrowaveSoftware & Systems Requirements |
| Document | note |
| ADF4155: Integer-N/Fractional-N PLL Synthesizer Data Sheet (Rev. 0) | PDF 523 kB |
| Document | note |
| UG-686: Evaluation Board for the ADF4155 PLL Frequency Synthesizer | PDF 2493 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADF4155BCPZ Production | 24 ld LFCSP 4x4mm (2.5EP) | OTH 490 | -40 to 85C | 5.79 | 5.02 | Y |
| ADF4155BCPZ-RL7 Production | 24 ld LFCSP 4x4mm (2.5EP) | REEL 1500 | -40 to 85C | 0 | 5.02 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EV-ADF4155EB1Z | Evaluation Board | 225 | Y |
