ADF4156 6.2 GHz Fractional-N Frequency Synthesizer
CATV equipment
Base stations for mobile radio (WiMAX, GSM, PCS, DCS, SuperCell 3G, CDMA, WCDMA)
Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANs, PMR
Communications test equipment
The ADF4156 is a 6.2 GHz fractional-N frequency synthesizer that implements local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a ∑∆ based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). The RF output phase is programmable for applications that require a particular phase relationship between the output and the reference. The ADF4156 also features cycle slip reduction circuitry, leading to faster lock times without the need for modifications to the loop filter.
Control of all on-chip registers is via a simple 3-wire interface. The device operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.
Applications
Features and BenefitsRF bandwidth to 6.2 GHz2.7 V to 3.3 V power supplySeparate VP allows extended tuning voltageProgrammable fractional modulusProgrammable charge pump currents3-wire serial interfaceDigital lock detectPower-down modePin compatible with the ADF4110, ADF4111, ADF4112, ADF4113, ADF4106, ADF4153, and ADF4154 frequency synthesizersProgrammable RF output phaseLoop filter design possible with ADIsimPLLCycle slip reduction for faster lock times | Software & Systems Requirements |
Data Sheets
Application Notes
User Guides
Frequently Asked Questions
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADF4156BCPZ Production | 20 ld LFCSP 4x4mm (2.1EP) | OTH 490 | -40 to 85C | 3.17 | 2.83 | Y |
| ADF4156BCPZ-RL Production | 20 ld LFCSP 4x4mm (2.1EP) | REEL 5000 | -40 to 85C | 0 | 2.83 | Y |
| ADF4156BCPZ-RL7 Production | 20 ld LFCSP 4x4mm (2.1EP) | REEL 1500 | -40 to 85C | 0 | 2.83 | Y |
| ADF4156BRUZ Production | 16 ld TSSOP | OTH 96 | -40 to 85C | 3.17 | 2.83 | Y |
| ADF4156BRUZ-RL Production | 16 ld TSSOP | REEL 2500 | -40 to 85C | 0 | 2.83 | Y |
| ADF4156BRUZ-RL7 Production | 16 ld TSSOP | REEL 1000 | -40 to 85C | 0 | 2.83 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EV-ADF4156SD1Z | Evaluation Board | 151.8 | Y |
| EVAL-SDP-CS1Z | SDP-S Controller Board - Interface to EV-ADF4156SD1Z | 49 | Y |
Reference Materials
