Features and Benefits
- RF frequency: 700 MHz to 3000 MHz, continuous
- LO input frequency: 200 MHz to 2700 MHz, high-side or lowside injection
- IF range: 40 MHz to 500 MHz
- Power conversion gain of 9.0 dB
- Single sideband (SSB) noise figure of 11.3 dB
- Input IP3 of 30 dBm
- Input P1dB of 10.6 dBm
- Typical LO input drive of 0 dBm
- Single-ended, 50 Ω RF port
- Single-ended or balanced LO input port
- Serial port interface (SPI) control on all functions
- Exposed pad, 7 mm × 7 mm, 48-lead LFCSP
The ADRF6612 is a dual radio frequency (RF) mixer and intermediate frequency (IF) amplifier with an integrated phaselocked loop (PLL) and voltage controlled oscillators (VCOs). The ADRF6612 uses revolutionary broadband square wave limiting local oscillator (LO) amplifiers to achieve an unprecedented RF bandwidth of 700 MHz to 3000 MHz. Unlike narrow-band sine wave LO amplifier solutions, the LO can be applied above or below the RF input over an extremely wide bandwidth. Energy storage elements are not utilized in the LO amplifier, thus dc current consumption also decreases with decreasing LO frequency.
The ADRF6612 utilizes highly linear, doubly balanced passive mixer cores with integrated RF and LO balancing circuits to allow single-ended operation. Integrated RF baluns allow optimal performance over the 700 MHz to 3000 MHz RF input frequency. The balanced passive mixer arrangement provides outstanding LO to RF and LO to IF leakages, excellent RF to IF isolation, and excellent intermodulation performance over the full RF bandwidth.
The balanced mixer cores provide extremely high input linearity, allowing the device to be used in demanding wideband applications where in band blocking signals may otherwise result in the degradation of dynamic range. Noise performance under blocking is comparable to narrow-band passive mixer designs. High linearity IF buffer amplifiers follow the passive mixer cores, yielding typical power conversion gains of 9 dB, and can be matched to a wide range of output impedances.
The PLL architecture supports both integer-N and fractional-N operation and can generate the entire LO frequency range of 200 MHz to 2700 MHz using an external reference input frequency anywhere in the range of 12 MHz to 320 MHz. An external loop filter provides flexibility in trading off phase noise vs. acquisition time. To reduce fractional spurs in fractional-N mode, a sigma-delta (Σ-Δ) modulator controls the post-VCO programmable divider. The VCO consists of multiple VCO cores.
All features of the ADRF6612 are controlled via a 3-wire SPI resulting in optimum performance and minimum external components.
The ADRF6612 is fabricated using a BiCMOS, high performance IC process. The device is available in a 7 mm × 7 mm, 48-lead LFCSP package and operates over a −40°C to +85°C temperature range. An evaluation board is available.
- Multiband/multistandard cellular base station diversity receivers
- Wideband radio link diversity downconverters
- Multimode cellular extenders and picocells
Product Lifecycle Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (1)
This page contains information for evaluating the ADRF6612/ADRF6614, 700 MHz to 3000 MHz Rx Dual Mixer with Integrated Fractional-N PLL and VCO. The ADRF6612/ADRF6614 is a full featured evaluation board with a single supply of 5 V.
The user guide UG-969 allows the user to quickly power up and run the software for the ADRF6612/ADRF6614 integrated synthesizer and mixers. It complements the ADRF6612/ADRF6614 data sheet, which should be used in conjunction with the user guide.
The ADRF6612/ADRF6614 evaluation board provides all of the support circuitry required to operate the ADRF6612/ADRF6614 in various modes and configurations.
Documentation & Resources
Tools & Simulations
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.