홈 RF 및 마이크로파 RF 증폭기 RF VGA(가변 게인 증폭기)
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RF 및 마이크로파
RF 증폭기
RF VGA(가변 게인 증폭기)

LMH6517

활성

디지털 방식 게인 제어 저전력, 저잡음 IF 및 베이스밴드 듀얼 16비트 ADC 드라이버

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데이터 시트

LMH6517

활성
데이터 시트 지금 주문하기

제품 상세 정보

2nd harmonic (dBc) -65 3rd harmonic (dBc) 92 Frequency of harmonic distortion measurement (MHz) 150 Acl, min spec gain (V/V) 0.33 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 1200 Gain (max) (dB) 22 Gain (min) (dB) -9.5 Step size (dB) 0.5 Type RF VGA Iq per channel (typ) (mA) 80 Number of channels 2 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) 4.5 Vs (min) (V) 4.5 Vs (max) (V) 5.25
2nd harmonic (dBc) -65 3rd harmonic (dBc) 92 Frequency of harmonic distortion measurement (MHz) 150 Acl, min spec gain (V/V) 0.33 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 1200 Gain (max) (dB) 22 Gain (min) (dB) -9.5 Step size (dB) 0.5 Type RF VGA Iq per channel (typ) (mA) 80 Number of channels 2 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) 4.5 Vs (min) (V) 4.5 Vs (max) (V) 5.25
WQFN (RTV) 32 25 mm² (5 mm × 5 mm)
  • Accurate, 0.5dB Gain Steps
  • 200Ω Resistive, Differential Input
  • Low Impedance, Differential Output
  • Disable Function for Each Channel
  • Parallel Gain Control
  • SPI Compatible Serial Bus
  • Two Wire, Pulse Mode Control
  • On Chip Register Stores Gain Setting
  • Low Sensitivity of Linearity and Phase to Gain Setting
  • Single 5V Supply Voltage
  • Small Footprint WQFN Package

Key Specifications

  • OIP3: 43dBm @ 200MHz
  • Noise figure 5.5dB
  • Gain step size of 0.5dB
  • Gain step accuracy: 0.05dB
  • Frequency Range of 1200 MHz
  • Supply current 80mA per channel

All trademarks are the property of their respective owners.

  • Accurate, 0.5dB Gain Steps
  • 200Ω Resistive, Differential Input
  • Low Impedance, Differential Output
  • Disable Function for Each Channel
  • Parallel Gain Control
  • SPI Compatible Serial Bus
  • Two Wire, Pulse Mode Control
  • On Chip Register Stores Gain Setting
  • Low Sensitivity of Linearity and Phase to Gain Setting
  • Single 5V Supply Voltage
  • Small Footprint WQFN Package

Key Specifications

  • OIP3: 43dBm @ 200MHz
  • Noise figure 5.5dB
  • Gain step size of 0.5dB
  • Gain step accuracy: 0.05dB
  • Frequency Range of 1200 MHz
  • Supply current 80mA per channel

All trademarks are the property of their respective owners.

The LMH6517 contains two high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically the LMH6517 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 LMH6517 has an independent, digitally controlled attenuator and a high linearity, differential output amplifier. Each block has been optimized for low distortion and maximum system design flexibility. Each channel can be individually disabled for power savings.

The LMH6517 digitally controlled attenuator provides precise 0.5dB gain steps over a 31.5dB range. On chip digital latches are provided for local storage of the gain setting. Both serial and parallel programming options are provided. A Pulse mode is also offered where simple up or down commands can change the gain one step at a time.

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 filters or analog to digital converters.

The LMH6517 operates over the industrial temperature range of −40°C to +85°C. The LMH6517 is available in a 32-Pin, thermally enhanced, WQFN package.

The LMH6517 contains two high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically the LMH6517 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 LMH6517 has an independent, digitally controlled attenuator and a high linearity, differential output amplifier. Each block has been optimized for low distortion and maximum system design flexibility. Each channel can be individually disabled for power savings.

The LMH6517 digitally controlled attenuator provides precise 0.5dB gain steps over a 31.5dB range. On chip digital latches are provided for local storage of the gain setting. Both serial and parallel programming options are provided. A Pulse mode is also offered where simple up or down commands can change the gain one step at a time.

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 filters or analog to digital converters.

The LMH6517 operates over the industrial temperature range of −40°C to +85°C. The LMH6517 is available in a 32-Pin, thermally enhanced, WQFN package.
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기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
7개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 Low Pwr, Low Noise, IF& Basebnd, Dual 16-bit ADC Drvr w/Dig Cntrlld Gain datasheet (Rev. K) 2013. 3. 13
e북 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017. 3. 28
애플리케이션 노트 AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) 2013. 5. 1
애플리케이션 노트 AN-2235 Ckt Brd Design for LMH6517/21/22 & Other H-Sp IF/RF F Amp (Rev. A) 2013. 5. 1
애플리케이션 노트 Using High Speed Diff Amp to Drive ADCs (Rev. A) 2013. 4. 26
사용 설명서 High-IF Sub-sampling Receiver Subsystem User Guide 2012. 1. 27
애플리케이션 노트 A Walk Along the Signal Path (High-Speed Signal Path) 2005. 3. 30

설계 및 개발

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평가 보드

LMH6517EVAL-R1 — LMH6517 디지털 제어 가변 게인 증폭기 평가 보드

The LMH6517EVAL evaluation board is designed to aid in the characterization of TI`s High Speed LMH6517 Digital Controlled Variable Gain Amplifier. Use the evaluation board as a guide for high frequency layout and as a tool to aid in device testing and characterization.

The LMH6517 DVGA has (...)

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계산 툴

RF-CASCADE-CALC-TOOL — TI RF 캐스케이드 계산기

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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