LM4917
- Ground Referenced Outputs
- High PSRR
- Available in Space-Saving TSSOP Package
- Ultra Low Current Shutdown Mode
- Improved Pop and Click Circuitry eliminates Noises During Turn-On and Turn-Off Transitions
- 1.4 – 3.6V Operation
- No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors
- Shutdown Either Channel Independently
Key Specifications
- Improved PSRR at 1kHz: 70dB (Typ)
- Power Output at VDD = 3V, RL = 16Ω, THD ≦ 1%: 95mW (Typ)
- Shutdown Current: 0.01µA (Typ)
All trademarks are the property of their respective owners.
The LM4917 is a stereo, output capacitor-less headphone amplifier capable of delivering 95mW of continuous average power into a 16Ω load with less than 1% THD+N from a single 3V power supply.
The LM4917 provides high quality audio reproduction with minimal external components. A ground referenced output eliminates the output coupling capacitors typically required by single-ended loads, reducing component count, cost and board space consumption. This makes the LM4917 ideal for mobile phones and other portable equipment where board space is at a premium. Eliminating the output coupling capacitors also improves low frequency response.
The LM4917 operates from a single 1.4V to 3.6V power supply, features low 0.02% THD+N and 70dB PSRR. Independent right/left channel low-power shutdown controls provide power saving flexibility for mono/stereo applications. Superior click and pop suppression eliminates audible transients during start up and shutdown. Short circuit and thermal overload protection protects the device during fault conditions.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LM4917 Ground-Referenced, 95mW Stereo Headphone Amplifier datasheet (Rev. G) | 2013. 5. 1 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
| WSON (NHK) | 14 | Ultra Librarian |