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Overview
Features and Benefits
- RF output frequency range: 57 MHz to 14,600 MHz
- RFOUT: 7300 MHz to 14,600 MHz
- PDIV/NDIV: 57 MHz to 14,600 MHz
- Fractional-N synthesizer and Integer N synthesizer modes
- 24-bit fractional modulus
- Exact frequency mode for 0 Hz frequency error
- Typical PFD spurious: <−105 dBc
- Integrated rms jitter: <40 fs
- Normalized inband phase noise floor FOM
- High current mode: −232 dBc/Hz (integer) and −229 dBc/Hz (fractional)
- Normal mode: −229 dBc/Hz (integer) and −226 dBc/Hz (fractional)
- Maintains frequency lock over −40°C to +85°C (lock and leave)
- Low phase noise VCO
- −115 dBc/Hz typical at 100 kHz (7.3 GHz)
- −114 dBc/Hz typical at 100 kHz (10 GHz)
- −109 dBc/Hz typical at 100 kHz (14.6 GHz)
- RFOUT power: 5 dBm
- Programmable divide by 1, 2, 4, 8, 16, 32, 64, or 128 output
- Programmable output power level
- Typical power dissipation: 815 mW
- Programmable low current and power dissipation: <700 mW
- Fast frequency hopping (autocalibration enabled): <40 μs
- 48-terminal, 7 mm × 7 mm LGA package: 49 mm2
Product Details
The ADF5610 allows implementation of fractional-N or Integer N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference source. The wideband microwave voltage controlled oscillator (VCO) design permits frequency operation from 7300 MHz to 14600 MHz at a single radio frequency (RF) output. A series of frequency dividers with a differential frequency output allows operation from 57 MHz to 14600 MHz. Analog and digital power supplies for the PLL circuitry range from 3.1 V to 3.5 V, and the VCO supplies are between 4.75 V and 5.25 V. The charge pump supply voltage can be extended up to 3.6 V for improved frequency band overlap and extended upper frequency range.
The ADF5610 has an integrated VCO with a fundamental frequency of 3650 MHz to 7300 MHz. These frequencies are internally doubled and routed to the RFOUT pin. An additional differential output allows the doubled VCO frequency to be divided by 1, 2, 4, 8, 16, 32, 64, or 128, allowing the user to generate RF output frequencies as low as 57 MHz. A simple 3-wire serial port interface (SPI) provides control of all on-chip registers. To conserve power, this divider block can be disabled when not needed through the SPI interface. Likewise, the output power for both the single-ended output and the differential output are programmable via the VCO register settings. The ADF5610 also contains various power-down modes for the VCO circuitry and PLL circuitry.
The integrated phase detector (PD) and delta-sigma (Δ-Σ) modulator, capable of operating at up to 100 MHz, permit wide loop bandwidths and fast frequency tuning with a typical spurious level of −100 dBc.
With phase noise levels from −115 dBc/Hz at 7.3 GHz to −109 dBc/Hz at 14.6 GHz, the ADF5610 is equipped to minimize blocker effects, and to improve receiver sensitivity and transmitter spectral purity. The low phase noise floor eliminates any contribution to modulator and mixer noise floor in transmitter applications.
The ADF5610 is a PLL with integrated VCO. The device features an innovative programmable performance technology that enables the ADF5610 to tailor current consumption and corresponding noise performance to individual applications by selecting either a low current consumption mode or a high performance mode for improved phase noise performance.
Additional features of the ADF5610 include approximately 3 dB of RFOUT gain control in 1.5 dB steps and 5 dB of control on the differential port in approximately 2.5 dB steps. Finally, the Δ-Σ modulator with exact frequency mode enables users to generate output frequencies with 0 Hz frequency error.
Applications
- Military and defense
- Test equipment
- Clock generation
- Wireless infrastructure
- Satellite and very small aperture terminal (VSAT)
- Microwave radio
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Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
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ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
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