LMH6517
- 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
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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.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Low Pwr, Low Noise, IF& Basebnd, Dual 16-bit ADC Drvr w/Dig Cntrlld Gain datasheet (Rev. K) | 2013/03/13 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 2017/03/28 | ||
| Application note | AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) | 2013/05/01 | ||
| EVM User's guide | AN-2081 LMH6517EVAL-R1 Evaluation Board (Rev. B) | 2013/05/01 | ||
| Application note | AN-2235 Ckt Brd Design for LMH6517/21/22 & Other H-Sp IF/RF F Amp (Rev. A) | 2013/05/01 | ||
| EVM User's guide | AN-1942 LMH6517 Evaluation Board (Rev. B) | 2013/04/26 | ||
| Application note | Using High Speed Diff Amp to Drive ADCs (Rev. A) | 2013/04/26 | ||
| User guide | High-IF Sub-sampling Receiver Subsystem User Guide | 2012/01/27 | ||
| Application note | A Walk Along the Signal Path (High-Speed Signal Path) | 2005/03/30 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RTV) | 32 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.