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HF-Verstärker mit variabler Verstärkung (VGAs)

LMH6522

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Hochleistungsfähige Vierfach-DVGA

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Datenblatt

LMH6522

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

2nd harmonic (dBc) -78 3rd harmonic (dBc) 75 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 0.61 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 1400 Gain (max) (dB) 25.74 Gain (min) (dB) -4.3 Step size (dB) 1 Type RF VGA Iq per channel (typ) (mA) 116 Number of channels 4 Rating Catalog Operating temperature range (°C) -40 to 85 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
2nd harmonic (dBc) -78 3rd harmonic (dBc) 75 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 0.61 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 1400 Gain (max) (dB) 25.74 Gain (min) (dB) -4.3 Step size (dB) 1 Type RF VGA Iq per channel (typ) (mA) 116 Number of channels 4 Rating Catalog Operating temperature range (°C) -40 to 85 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
WQFN (NJY) 54 55 mm² (10 mm × 5.5 mm)
  • OIP3: 49dBm @ 200MHz
  • Noise Figure: 8.5dB
  • Voltage Gain: 26dB
  • 1dB Gain Steps
  • −3dB Bandwidth of 1400 MHz
  • Gain Step Accuracy: 0.2 dB
  • Disable Function for Each Channel
  • Parallel and Serial Gain Control
  • Low Power Mode for Power Management Flexibility
  • Small Footprint WQFN Package

All trademarks are the property of their respective owners.

  • OIP3: 49dBm @ 200MHz
  • Noise Figure: 8.5dB
  • Voltage Gain: 26dB
  • 1dB Gain Steps
  • −3dB Bandwidth of 1400 MHz
  • Gain Step Accuracy: 0.2 dB
  • Disable Function for Each Channel
  • Parallel and Serial Gain Control
  • Low Power Mode for Power Management Flexibility
  • Small Footprint WQFN Package

All trademarks are the property of their respective owners.

The LMH6522 contains four, high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically, the LMH6522 drives a high performance ADC in a broad range of mixed signal and digital communication applications such as mobile radio and cellular base stations where automatic gain control (AGC) is required to increase system dynamic range.

Each channel of LMH6522 has an independent, digitally controlled attenuator and a high linearity, differential output, amplifier. All circuitry has been optimized for low distortion and maximum system design flexibility. Power consumption is managed by a three-state enable pin. Individual channels can be disabled or placed into a Low Power Mode or a higher performance, High Power Mode.

The LMH6522 digitally controlled attenuator provides precise 1dB gain steps over a 31dB range. The digital attenuator can be controlled by either a SPI Serial bus or a high speed parallel bus.

The output amplifier has a differential output, allowing large signal swings on a single 5V supply. The low impedance output provides maximum flexibility when driving a wide range filter designs or analog to digital converters. For applications which have very large changes in signal level LMH6522 can support up to 62dB of gain range by cascading channels.

The LMH6522 operates over the industrial temperature range of −40°C to +85°C. The LMH6522 is available in a 54-Pin, thermally enhanced, WQFN package.

The LMH6522 contains four, high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically, the LMH6522 drives a high performance ADC in a broad range of mixed signal and digital communication applications such as mobile radio and cellular base stations where automatic gain control (AGC) is required to increase system dynamic range.

Each channel of LMH6522 has an independent, digitally controlled attenuator and a high linearity, differential output, amplifier. All circuitry has been optimized for low distortion and maximum system design flexibility. Power consumption is managed by a three-state enable pin. Individual channels can be disabled or placed into a Low Power Mode or a higher performance, High Power Mode.

The LMH6522 digitally controlled attenuator provides precise 1dB gain steps over a 31dB range. The digital attenuator can be controlled by either a SPI Serial bus or a high speed parallel bus.

The output amplifier has a differential output, allowing large signal swings on a single 5V supply. The low impedance output provides maximum flexibility when driving a wide range filter designs or analog to digital converters. For applications which have very large changes in signal level LMH6522 can support up to 62dB of gain range by cascading channels.

The LMH6522 operates over the industrial temperature range of −40°C to +85°C. The LMH6522 is available in a 54-Pin, thermally enhanced, WQFN package.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LMH6522 High Performance Quad DVGA datasheet (Rev. D) 18.03.2013
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28.03.2017
Anwendungshinweis AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) 01.05.2013
Anwendungshinweis AN-2235 Ckt Brd Design for LMH6517/21/22 & Other H-Sp IF/RF F Amp (Rev. A) 01.05.2013
Anwendungshinweis AN-1718 Differential Amplifier Applications Up to 400 MHz (Rev. B) 01.05.2013
Anwendungshinweis Using High Speed Diff Amp to Drive ADCs (Rev. A) 26.04.2013
Anwendungshinweis Between the Amplifier and ADC: Managing Filter Loss in Communications Systems (Rev. B) 26.04.2013
Weitere Dokumente Featured High Speed Differential Amplifiers 23.10.2012
Anwendungshinweis A Walk Along the Signal Path (High-Speed Signal Path) 30.03.2005

Design und Entwicklung

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Evaluierungsplatine

LMH6522EVAL — LMH6522EVAL-Evaluierungsmodul

The LMH6522EVAL evaluation board is designed to facilitate the test and measurement of the LMH6522 quad, digitally controlled, variable gain amplifier (DVGA). This board is configured with 50 Ohm, single ended signal paths for use with standard lab equipment. The LMH6522EVAL board offers switch (...)
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RF-CASCADE-CALC-TOOL — HF-Kaskadenrechner von TI

A browser-based RF lineup analysis tool supporting up to 10 stages. Computes gain, NF, OIP3, OIP2, OP1dB, and derived metrics. Features dual-axis Plotly charts, P1dB saturation detection, and export to CSV
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