ADF4368
ADF4368 is Microwave Wideband Synthesizer manufactured by Analog Devices.
FEATURES
- Output frequency range: 800 MHz to 12.8 GHz
- Jitter < 30 fs RMS f OUT = 9.001 GHz, f REF = f PFD = 250 MHz, fractional mode
- Wideband phase noise floor:
- 160 d Bc/Hz at 12.8 GHz
- PLL specifications
- Normalized in-band phase noise floor
- - 239 d Bc/Hz: integer,
- 237 d Bc/Hz: fractional mode
- Normalized 1/f phase noise floor
- - 287 d Bc/Hz: normalized to 1 Hz
- - 147 d Bc/Hz: normalized to 1 GHz at 10 k Hz
- 625 MHz phase detector frequency integer mode
- 250 MHz phase detector frequency fractional mode
- 25-bit fixed, 49-bit bined fractional modulus
- 4 GHz reference input frequency
- Typical
- 95 d Bc PFD spurs
- Reference to output delay specifications
- Temperature coefficient: 0.06 ps/°C
- Adjustment step size: <1 ps
- Multichip output phase alignment
- Through SYNC pin or by EZSync method
- 3.3 V and 5 V power supplies
- ADIsim PLL™ loop filter design tool support
- Available in 48-lead, 7 mm × 7 mm LGA package
- - 40°C to +125°C operating junction temperature
APPLICATIONS
- Wireless infrastructure (MC-GSM, 5G)
- Test and measurement
- Aerospace and defense
GENERAL DESCRIPTION
The ADF4368 is a high performance, ultra-low jitter, integer-N and fractional-N phase-locked loop (PLL) with integrated VCO ideally suited for frequency conversion applications. The high performance PLL has a figure of merit of
- 239 d Bc/Hz, very low 1/f noise of normalized
- 287 d Bc/Hz and high PFD frequency that can achieve ultra-low in-band noise and integrated jitter. The ADF4368 can generate any frequency from 800 MHz to 12.8 GHz without an internal doubler, which eliminates the need for sub-harmonic filters. The Σ-Δ modulator includes a 25-bit fixed modulus that allows hertz frequency resolution and an additional 17-bit variable modulus, which allows even finer resolution and flexibility for frequency planning. The 9 d Bm output power at 12.8 GHz in single-ended configuration with 16 step power adjust feature makes it very useful for any application. For multiple frequency conversion...
