Overview
The ADRF6510ACPZ-R7, produced by Analog Devices Inc., is a highly versatile integrated circuit designed for wireless communication systems. It is a matched pair of fully differential low noise and low distortion programmable filters and variable gain amplifiers (VGAs). This device is particularly suited for quadrature-based (I/Q) communication systems, offering excellent channel matching and high spurious-free dynamic range across all gain and bandwidth settings. The ADRF6510 operates from a single 5 V supply and is fabricated in an advanced silicon-germanium BiCMOS process, available in a 32-lead, exposed paddle LFCSP package.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 4.75 V to 5.25 V |
| Total Supply Current (Max Bandwidth) | 258 mA |
| Total Supply Current (Min Bandwidth) | 131 mA |
| Disable Current | 2 mA |
| Disable Threshold | 2.5 V |
| Enable Response Time | 20 µs |
| Disable Response Time | 300 ns |
| Filter Corner Frequency | Programmable from 1 MHz to 30 MHz in 1 MHz steps |
| Preamplifier Gain | Pin-programmable: 6 dB or 12 dB |
| Variable Gain Amplifier Range | 50 dB continuous gain control |
| Output Impedance | 20 Ω differential |
| Output Common-Mode Voltage | Defaults to VPS/2, programmable via VOCM pin |
| Temperature Range | −40°C to +85°C |
Key Features
- Differential input and output with adjustable output common-mode voltage.
- Optional dc output offset correction and power-down feature.
- High-pass corner frequency defined by external capacitors on the OFS1 and OFS2 pins.
- Six-pole Butterworth filter response with programmable corner frequencies via SPI port.
- Variable gain amplifiers with 50 dB continuous gain control and a slope of 30 mV/dB.
- Output buffers capable of driving 1.5 V p-p into 1 kΩ loads.
- Excellent channel matching and high spurious-free dynamic range.
Applications
- Baseband I/Q receivers.
- Diversity receivers.
- ADC drivers.
- Quadrature-based (I/Q) communication systems with dense constellations, multiple carriers, and nearby interferers.
Q & A
- What is the primary function of the ADRF6510ACPZ-R7? The ADRF6510ACPZ-R7 is a matched pair of fully differential low noise and low distortion programmable filters and variable gain amplifiers (VGAs) designed for wireless communication systems.
- What is the supply voltage range for the ADRF6510ACPZ-R7? The supply voltage range is from 4.75 V to 5.25 V.
- What is the maximum total supply current when the device is programmed to the highest bandwidth setting? The maximum total supply current is 258 mA.
- How is the filter corner frequency programmed? The filter corner frequency is programmable from 1 MHz to 30 MHz in 1 MHz steps via the SPI port.
- What are the gain options for the preamplifier? The preamplifier gain is pin-programmable with options of either 6 dB or 12 dB.
- What is the range of the variable gain amplifier? The variable gain amplifier provides 50 dB of continuous gain control.
- What is the output impedance of the device? The output impedance is 20 Ω differential.
- Can the output common-mode voltage be adjusted? Yes, the output common-mode voltage defaults to VPS/2 but can be programmed via the VOCM pin.
- What is the temperature range for the ADRF6510ACPZ-R7? The device operates over a temperature range of −40°C to +85°C.
- What type of filter response does the ADRF6510ACPZ-R7 provide? The device provides a six-pole Butterworth filter response.
