Overview
The ADRF6518ACPZ-WP, produced by Analog Devices Inc., is a matched pair of fully differential low noise and low distortion programmable filters and variable gain amplifiers (VGAs). This component is designed to reject large out-of-band interferers while reliably boosting the desired signal, thereby reducing the bandwidth and resolution requirements on analog-to-digital converters (ADCs). It is particularly suited for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Frequency Response, Filter Bypass Mode | - | - | 1100 MHz | - |
| Low-Pass Corner Frequency, fC | 1 MHz | - | 63 MHz | - |
| Corner Frequency Step Size | - | - | 1 MHz | - |
| Gain Range | -36 dB | - | -66 dB | - |
| Supply Voltage (VPS) | 3.15 V | 3.3 V | 3.45 V | V |
| Supply Current | - | 360 mA | 400 mA | A |
| Operating Temperature Range | -40°C | - | +85°C | °C |
| Package Type | - | - | 32-lead LFCSP | - |
Key Features
- Programmable filters with six-pole Butterworth response and 0.5 dB corner frequencies from 1 MHz to 63 MHz in 1 MHz steps.
- Variable gain amplifiers with continuous gain control and fixed gain options (9 dB, 12 dB, 15 dB, 18 dB, and 21 dB).
- Differential input and output with flexible output and input common-mode ranges.
- Optional dc output offset correction and SPI programmable filter corners and gain steps.
- Single 3.3 V supply operation with power-down feature, consuming <1 mA when fully disabled.
- High spurious-free dynamic range and excellent channel matching, making it ideal for IQ communication systems.
- Output buffers capable of driving 1.5 V p-p into 400 Ω loads at better than 65 dBc HD3.
Applications
- Point-to-point and point-to-multipoint radios.
- Baseband IQ receivers.
- Diversity receivers.
- ADC drivers.
- Instrumentation and medical applications.
Q & A
- What is the ADRF6518ACPZ-WP used for?
The ADRF6518ACPZ-WP is used as a matched pair of fully differential low noise and low distortion programmable filters and variable gain amplifiers (VGAs) in various communication and signal processing applications.
- What is the frequency range of the programmable filters?
The programmable filters have a frequency range from 1 MHz to 63 MHz in 1 MHz steps.
- What are the gain options for the variable gain amplifiers?
The variable gain amplifiers offer continuous gain control and fixed gain options of 9 dB, 12 dB, 15 dB, 18 dB, and 21 dB.
- What is the supply voltage range for the ADRF6518ACPZ-WP?
The supply voltage range is from 3.15 V to 3.45 V.
- What is the maximum supply current consumption?
The maximum supply current consumption is 400 mA.
- What is the operating temperature range?
The operating temperature range is from -40°C to +85°C.
- What type of package does the ADRF6518ACPZ-WP come in?
The component comes in a 32-lead, exposed pad LFCSP package.
- Can the dc output offset be corrected?
- What are some common applications of the ADRF6518ACPZ-WP?
- How does the component handle out-of-band interferers?
