Overview
The ADF4252BCP from Analog Devices Inc. is a dual fractional-N/integer-N frequency synthesizer designed for use in various wireless communication systems. This device is capable of implementing local oscillators (LO) in the upconversion and downconversion sections of wireless receivers and transmitters. It features a low noise digital phase frequency detector (PFD), a precision charge pump, and programmable reference dividers, making it versatile for a range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package | 24-WFQFN Exposed Pad, CSP |
| Frequency - Max | 3 GHz (RF), 1.2 GHz (IF) |
| Voltage - Supply | 2.7 V to 3.3 V |
| Extended Tuning Voltage | Up to 5 V (VP) |
| Input Type | CMOS |
| Output Type | Clock |
| Mounting Type | Surface Mount |
| PLL | Yes |
Key Features
- 3.0 GHz fractional-N and 1.2 GHz integer-N frequency synthesis
- Programmable dual modulus prescaler (RF: 4/5, 8/9; IF: 8/9, 16/17, 32/33, 64/65)
- Programmable charge pump currents
- 3-wire serial interface
- Digital lock detect
- Power-down mode
- Trade off noise vs. spurious performance
Applications
- Base stations for mobile radio (GSM, PCS, DCS, CDMA, WCDMA)
- Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
- Wireless LANs
- Communications test equipment
- CATV equipment
Q & A
- Q: What is the maximum frequency range of the ADF4252BCP?
A: The ADF4252BCP supports up to 3 GHz for RF and 1.2 GHz for IF frequency synthesis. - Q: What is the power supply voltage range for the ADF4252BCP?
A: The device operates with a power supply ranging from 2.7 V to 3.3 V. - Q: Does the ADF4252BCP support extended tuning voltage?
A: Yes, it allows an extended tuning voltage up to 5 V (VP). - Q: What type of interface does the ADF4252BCP use for control?
A: It uses a 3-wire serial interface. - Q: What are the key applications of the ADF4252BCP?
A: It is used in base stations for mobile radio, wireless handsets, wireless LANs, communications test equipment, and CATV equipment. - Q: Does the ADF4252BCP have a power-down mode?
A: Yes, it has a power-down mode to conserve power when not in use. - Q: How does the ADF4252BCP manage noise and spurious performance?
A: It allows a trade-off between noise and spurious performance. - Q: What is the package type of the ADF4252BCP?
A: It comes in a 24-WFQFN Exposed Pad, CSP package. - Q: Is the ADF4252BCP RoHS compliant?
A: Yes, it is RoHS compliant. - Q: What is the warranty period for the ADF4252BCP from some distributors?
A: Some distributors offer a 1-year warranty for the ADF4252BCP.
