Overview
The ADF4350ABCPZ-RL7 from Analog Devices Inc. is a wideband synthesizer with an integrated voltage-controlled oscillator (VCO). This device is designed to implement fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and external reference frequency. The ADF4350 features a fundamental VCO output frequency range of 2200 MHz to 4400 MHz and can generate RF output frequencies as low as 137.5 MHz through divide-by-1, -2, -4, -8, or -16 circuits. It is particularly suited for applications requiring high frequency stability and low phase noise.
Key Specifications
| Parameter | Value |
|---|---|
| Output Frequency Range | 137.5 MHz to 4400 MHz |
| VCO Frequency Range | 2200 MHz to 4400 MHz |
| Power Supply | 3.0 V to 3.6 V |
| Logic Compatibility | 1.8 V |
| Prescaler | Programmable dual-modulus prescaler of 4/5 or 8/9 |
| Output Power Level | Programmable |
| RF Output Mute | Pin- and software-controllable |
| Interface | 3-wire serial interface |
| Operating Temperature Range | -40°C to +85°C |
| Storage Temperature Range | -65°C to +125°C |
| Maximum Junction Temperature | 150°C |
Key Features
- Fractional-N and integer-N synthesizer
- Low phase noise VCO
- Programmable divide-by-1, -2, -4, -8, or -16 output
- Typical rms jitter: <0.4 ps rms
- Programmable output power level
- RF output mute function
- 3-wire serial interface
- Analog and digital lock detect
- Switched bandwidth fast-lock mode
- Cycle slip reduction
Applications
- Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT)
- Test equipment
- Wireless LANs
- CATV equipment
- Clock generation
Q & A
- What is the output frequency range of the ADF4350? The output frequency range of the ADF4350 is from 137.5 MHz to 4400 MHz.
- What is the VCO frequency range of the ADF4350? The VCO frequency range is from 2200 MHz to 4400 MHz.
- What are the power supply requirements for the ADF4350? The power supply range is from 3.0 V to 3.6 V.
- What type of prescaler does the ADF4350 have? The ADF4350 has a programmable dual-modulus prescaler of 4/5 or 8/9.
- Can the RF output be muted on the ADF4350? Yes, the RF output can be muted and this function is both pin- and software-controllable.
- What type of interface does the ADF4350 use? The ADF4350 uses a 3-wire serial interface.
- What are the operating temperature ranges for the ADF4350? The operating temperature range is from -40°C to +85°C.
- What is the maximum junction temperature for the ADF4350? The maximum junction temperature is 150°C.
- What are some common applications of the ADF4350? Common applications include wireless infrastructure, test equipment, wireless LANs, CATV equipment, and clock generation.
- Does the ADF4350 support fractional-N and integer-N synthesizers? Yes, the ADF4350 supports both fractional-N and integer-N synthesizers.
