AD8334-EVALZ

Series:	X-AMP®
Part Status:	Active
Lead Free Status / RoHS Status:	--
Channels per IC:	4 - Quad
Moisture Sensitivity Level (MSL):	--
Amplifier Type:	Variable Gain
Output Type:	Differential
Slew Rate:	650 V/µs
-3db Bandwidth:	100MHz
Current - Output / Channel:	45mA
Current - Supply (Main IC):	29.5mA
Voltage - Supply, Single/Dual (±):	4.5 V ~ 5.5 V
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	AD8334
Base Part Number:	AD8334

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AD8334-EVALZ application field and working principleThe AD8334-EVALZ is an Evaluation Board from Analog Device that consists of a wideband gain and phase block—the AD8334. This Evaluation Board is a high linearity Variable Gain Amplifier (VGA) suitable for use in cellular, wireless broadcast and digital TV applications. It also finds applications in auto-level control (ALC) systems such as dynamic range control (DRC) for tube amplifiers and loudspeaker protection. Additionally, this Evaluation Board is suitable for professional audio applications, such as PA systems and optics communication systems. In what follows, we will discuss the features and working principle of this Evaluation Board.The AD8334-EVALZ Evaluation Board is a high linearity VGA. It consists of a low noise, wideband, variable gain amplifier, and a wideband adjustable phase shifter. The variable gain amplifier has a gain range from -24dB to +20dB in 0.25dB steps and a noise figure of 0.8dB. This amplifier also has 20uV wideband noise, providing excellent linearity. The evaluation board also includes a wideband adjustable phase shifter with a range of 0° to 360° and phase adjustment resolution of 0.1°. The input and output refer to match of 50 ohm. Moreover, the Evaluation Board consumes only 75mW of power, making it suitable for low-power applications. It also operates from a single 3V to 5V supply, and its integrated low voltage shutdown feature helps reduce power consumption. The AD8334-EVALZ Evaluation Board comes with an on-board 5-pin female Logic Connector that can be used to control the amplitude and phase adjustments of the AD8334. This connector can be used to program the logic levels of the ADC334 IC. The AD8334-EVALZ Evaluation Board also includes a power supply connection, a 14-pin DIP plug, and a 10-pin male DIP plug for connecting to an external circuit board.In operation, the Evaluation Board provides a gain control input that can be adjusted from 0V to 3V. This gain control input is used to vary the gain of the amplifier. The phase shifter has an offset input and a factor input. The offset input is used to adjust the phase offset between the input and output. The factor input is used to adjust the factor of the phase field. The output of the Evaluation Board is then available through the output port via a 50 ohm connection.In summary, the AD8334-EVALZ Evaluation Board is an ideal solution for applications in wireless broadcast and digital TV, cellular applications, PA and loudspeaker protection, auto-level control and optics communication systems. This Evaluation Board provides excellent linearity for variable gain amplifiers and wideband adjustable phase shifters. It is capable of operating from a single 3V to 5V supply and consuming only 75mW of power. This Evaluation Board is also equipped with an on-board 5-pin Logic Connector and other connections which can be used to control the amplitude and phase of the evaluation board. Therefore, with its versatile features and abilities, the AD8334-EVALZ Evaluation Board is a great choice for various applications that require a wideband gain and phase block.

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