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UM10480

Variable gain amplifier BGA7210

Rev. 2 — 26 July 2011

User manual

Document information

Info

Content

Keywords

BGA7210, VGA, variable gain amplifier

Abstract

This user manual describes how to evaluate the variable gain amplifier
BGA7210 using a customer evaluation kit

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Содержание BGA7210

Страница 1: ...7210 Rev 2 26 July 2011 User manual Document information Info Content Keywords BGA7210 VGA variable gain amplifier Abstract This user manual describes how to evaluate the variable gain amplifier BGA72...

Страница 2: ...ation please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com NXP Semiconductors UM10480 Variable gain amplifier BGA7210 Revision history Rev Date Descr...

Страница 3: ...aluation board with a 5 V 1 W power supply 3 Insert the interface board in a free USB slot 4 Insert the USB flash drive in another free USB slot 5 Launch the customer software bga7210_mswin exe from t...

Страница 4: ...2 26 July 2011 4 of 13 NXP Semiconductors UM10480 Variable gain amplifier BGA7210 4 Customer evaluation kit contents The evaluation kit contains the following items ESD safe casing RF evaluation board...

Страница 5: ...5 1 Improving linearity The RF evaluation board is configured without using a shunt capacitor on the output Adding a shunt capacitor improves linearity around 2 8 GHz For other operating frequencies i...

Страница 6: ...omatically or manually Automatically depending on the attenuator setting each amplifier current setting is selected automatically This mode optimizes current consumption without compromising linearity...

Страница 7: ...A see Figure 4 The P1 dB is measured by sweeping the input power and observing where the S21 of the device is compressed by 1 dB compared to the linear gain In order for this measurement to accurately...

Страница 8: ...ass Filter LPF and isolator is applied before combining the two signals This configuration gives best isolation between the generators hence IMD3 levels of the input signal 80 dBc can be measured Plea...

Страница 9: ...BGA7210 6 4 Noise The Noise Figure NF is measured using a calibrated noise source with a specified Excess Noise Ratio ENR and a spectrum analyzer with a noise measurement option The system is calibrat...

Страница 10: ...valuation board is powered through connector X4 The X3 jumpers are set as shown in Figure 9 Fig 8 BGA7210 RF evaluation board jumpers and connectors Table 1 RF evaluation board components Component re...

Страница 11: ...pers on X3 should be set as shown in Figure 10 8 Abbreviations Fig 9 X3 jumper setting using supply voltage on X4 Fig 10 X3 jumper setting using USB supply voltage on X2 019aac413 VRFO VCC2 VDDA VCC1...

Страница 12: ...ns and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product design It is customer s sole responsibility to de...

Страница 13: ...en included in section Legal information 10 Contents 1 Introduction 3 2 Quick start 3 3 Installation 3 4 Customer evaluation kit contents 4 5 Controlling the customer RF evaluation board 5 5 1 Improvi...

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