Overview
The ADRF6650ACPZ from Analog Devices Inc. is a highly integrated downconverter designed for advanced radio frequency (RF) applications. This device combines dual mixers, dual digital switched attenuators, dual digital variable gain amplifiers, a phase-locked loop (PLL), and voltage-controlled oscillators (VCOs) in a single package. It also includes two RF baluns, serial gain control (SGC) controls, and fast enable inputs for time division duplex (TDD) operation. The integrated passive mixer provides highly linear downconversion over a 200 MHz sliding intermediate frequency (IF) window, and the device supports an RF bandwidth of 450 MHz to 2700 MHz.
Key Specifications
| Parameter | Value |
|---|---|
| RF Frequency Range | 450 MHz to 2700 MHz |
| LO Frequency Range | 450 MHz to 2900 MHz |
| Gain Control Range | 43 dB typical |
| Noise Figure | 9.5 dB typical at TA = 25°C |
| Isolation | 50 dBc typical at TA = 25°C |
| Power Supply | 3.3 V and 5 V |
| Operating Temperature | -40°C to +105°C |
| Package Style | 56-lead LFCSP (8x8 mm) |
| Number of Mixers | 2 |
Key Features
- Dual downconverter with integrated fractional-N PLL/VCO.
- Integrated RF baluns for single-ended 50 Ω inputs.
- Gain control with up/down and SPI interfaces.
- Fast enable inputs for time division duplex (TDD) operation.
- Broadband square wave limiting local oscillator (LO) amplifiers.
- Highly linear downconversion for a 200 MHz sliding IF window.
- Support for high-side or low-side LO injection.
Applications
- Multiband/multistandard cellular base station diversity receivers.
- Wideband radio link diversity downconverters.
- Multimode cellular extenders and picocells.
Q & A
- What is the RF frequency range of the ADRF6650ACPZ?
The RF frequency range is from 450 MHz to 2700 MHz.
- What is the LO frequency range of the ADRF6650ACPZ?
The LO frequency range is from 450 MHz to 2900 MHz.
- What is the typical gain control range of the ADRF6650ACPZ?
The typical gain control range is 43 dB.
- What is the noise figure of the ADRF6650ACPZ at 25°C?
The noise figure is 9.5 dB typical at TA = 25°C.
- What is the isolation of the ADRF6650ACPZ at 25°C?
The isolation is 50 dBc typical at TA = 25°C.
- What are the power supply voltages for the ADRF6650ACPZ?
The power supply voltages are 3.3 V and 5 V.
- What is the operating temperature range of the ADRF6650ACPZ?
The operating temperature range is from -40°C to +105°C.
- What type of package does the ADRF6650ACPZ come in?
The device comes in a 56-lead LFCSP (8x8 mm) package.
- How many mixers does the ADRF6650ACPZ integrate?
The device integrates two mixers.
- What are some common applications of the ADRF6650ACPZ?
Common applications include multiband/multistandard cellular base station diversity receivers, wideband radio link diversity downconverters, and multimode cellular extenders and picocells.
