Overview
The ADRF6850BCPZ is a highly integrated broadband quadrature demodulator, frequency synthesizer, and variable gain amplifier (VGA) produced by Analog Devices Inc. This device is designed to operate within a frequency range of 100 MHz to 1000 MHz, making it suitable for both narrow-band and wideband communications applications. It performs quadrature demodulation directly from IF to baseband frequencies, incorporating a high modulus fractional-N frequency synthesizer with an integrated VCO and a 60 dB gain control range provided by a front-end VGA.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Frequency Range | 100 MHz to 1000 MHz | |
| Input P1dB | +12 dBm at 0 dB gain | |
| Input IP3 | +22.5 dBm at 0 dB gain | |
| Noise Figure | 11 dB at >39 dB gain, 49 dB at 0 dB gain | |
| Baseband 1 dB Bandwidth | 250 MHz (wideband mode), 50 MHz (narrow-band mode) | |
| Gain Control Range | 60 dB | |
| Power Supply | +3.15 V to +3.45 V | |
| Current Supply | 350 mA | |
| Package | 56-VFQFN Exposed Pad, CSP | |
| Operating Temperature | -40°C to +85°C | |
| Interface | SPI/I2C serial interface |
Key Features
- IQ quadrature demodulator
- Integrated fractional-N PLL and VCO with better than 1 Hz frequency resolution
- 60 dB gain control range provided by a front-end VGA
- SPI/I2C serial interface for control of on-chip registers
- High modulus fractional-N frequency synthesizer
- Baseband outputs with maximum swing of 2.5 V p-p and output impedance of 28 Ω differential
- Low phase noise: -75 dBc/Hz at 10 Hz offset, -80 dBc/Hz at 100 Hz offset, etc.
Applications
- Broadband communications
- Cellular communications
- Satellite communications
Q & A
- What is the operating frequency range of the ADRF6850BCPZ?
The operating frequency range is from 100 MHz to 1000 MHz. - What is the gain control range of the ADRF6850BCPZ?
The gain control range is 60 dB. - What type of interfaces does the ADRF6850BCPZ support for control?
The device supports SPI and I2C serial interfaces. - What is the power supply voltage range for the ADRF6850BCPZ?
The power supply voltage range is from +3.15 V to +3.45 V. - What is the maximum current supply for the ADRF6850BCPZ?
The maximum current supply is 350 mA. - What are the typical applications of the ADRF6850BCPZ?
The typical applications include broadband communications, cellular communications, and satellite communications. - What is the package type of the ADRF6850BCPZ?
The package type is 56-VFQFN Exposed Pad, CSP. - What is the baseband 1 dB bandwidth of the ADRF6850BCPZ in wideband mode?
The baseband 1 dB bandwidth in wideband mode is 250 MHz. - What is the phase noise performance of the ADRF6850BCPZ?
The phase noise performance includes -75 dBc/Hz at 10 Hz offset, -80 dBc/Hz at 100 Hz offset, and so on. - What is the input P1dB and IP3 of the ADRF6850BCPZ at 0 dB gain?
The input P1dB is +12 dBm and the input IP3 is +22.5 dBm at 0 dB gain.
