ADRF6516 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADRF6516
Manufacturer

ADI
ChipWorker Part#

CW353161867
Package

LFCSP
Description

IC, VGA, MATCHED PAIR, 31MHz, 32LFCSP; Frequency Range: 1MHz to 31MHz; Gain: 45dB; Power Dissipation Pd: 1.25W; RF Ty...
Documentation

Datasheet

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ADRF6516 Specifications

Attribute	Attribute Value

Part Number	ADRF6516
Manufacturer	ADI
ChipWorker Part#	CW353161867
Documentation	Datasheet
Number of Pins	32 Pin
Case/Package	LFCSP
Supply Current	360 mA
Gain	45 dB
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage (Max)	3.45 V
Supply Voltage (Min)	3.15 V
	expand all
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Unknown
Packaging	Each
RoHS	RoHS Compliant
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2013/06/20

Product Description

Product Details
The ADRF6516 is a matched pair of fully differential, low noise and low distortion programmable filters and variable gain amplifiers (VGAs). Each channel is capable of rejecting large out-of-band interferers while reliably boosting the desired signal, thus reducing the bandwidth and resolution requirements on the analog-to-digital converters (ADCs). The excellent matching between channels and their high spurious-free dynamic range over all gain and bandwidth settings make the ADRF6516 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers.
The filters provide a six-pole Butterworth response with 1 dB corner frequencies programmable through the SPI port from 1 MHz to 31 MHz in 1 MHz steps. The preamplifier that precedes the filters offers a SPI-programmable option of either 3 dB or 6 dB of gain. The preamplifier sets a differential input impedance of 1600 Ω and has a common-mode voltage that defaults to VPS/2 but can be driven from 1.1 V to 1.8 V.
The variable gain amplifiers that follow the filters provide 50 dB of continuous gain control with a slope of 15.5 mV/dB. Their maximum gains can be programmed to various values through the SPI. The output buffers provide a differential output impedance of 30 Ω and are capable of driving 2 V p-p into 1 kΩ loads. The output common-mode voltage defaults to VPS/2, but it can be adjusted down to 700 mV by driving the high impedance VOCM pin. Independent, built-in dc offset compensation loops can be disabled if fully dc-coupled operation is desired. The high-pass corner frequency is defined by external capacitors on the OFS1 and OFS2 pins and the VGA gain.
The ADRF6516 operates from a 3.15 V to 3.45 V supply and consumes a maximum supply current of 360 mA when programmed to the highest bandwidth setting. When disabled, it consumes <9 mA. The ADRF6516 is fabricated in an advanced silicon-germanium BiCMOS process and is available in a 32-lead, exposed paddle LFCSP. Performance is specified over the −40°C to +85°C temperature range.
**Applications**
Baseband I/Q receivers
Diversity receivers
ADC drivers
Point-to-point and point-to-multipoint radio
Instrumentation
Medical
### Features and Benefits
Matched pair of programmable filters and VGAs
Continuous gain control range: 50 dB
Digital gain control: 15 dB
6-pole Butterworth filter: 1 MHz to 31 MHz in 1 MHz steps, 1 dB corner frequency
Preamplifier and postamplifier gain steps
IMD3: >65 dBc for 1.5 V p-p composite output
HD2, HD3: >65 dBc for 1.5 V p-p output
Differential input and output
Flexible output and input common-mode ranges
Optional dc offset compensation loop
SPI programmable filter corners and gain steps
Power-down feature
Single 3.3 V supply operation

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