LM4906
- Selectable Gain of 6dB (2V/V) or 12dB (4V/V)
- No Output or PSRR Bypass Capacitors Required
- Improved “Click and Pop” Suppression Circuitry
- Very Fast Turn on Time: 5ms (Typ)
- Minimum External Components
- 2.6 - 5.5V Operation
- BTL Output Can Drive Capacitive Loads
- Ultra Low Current Shutdown Mode (SD Low)
Key Specifications
- Improved PSRR at 217Hz for +3V: 71 dB
- Power Output at +5V, THD+N = 1%, 8Ω: 1.0 W (Typ)
- Power Output at +3V, THD+N = 1%, 8Ω: 390 mW (Typ)
- Total Shutdown Power Supply Current: 0.1µA (Typ)
All trademarks are the property of their respective owners.
The LM4906 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1W of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a +5V power supply.
The LM4906 is the first Texas Instruments Boomer Power Amplifier that does not require an external PSRR bypass capacitor. The LM4906 also has an internal selectable gain of either 6dB or 12dB. In addition, no output coupling capacitors or bootstrap capacitors are required which makes the LM4906 ideally suited for cell phone and other low voltage portable applications.
The LM4906 contains advanced pop and click circuitry that eliminates noise, which would otherwise occur during turn-on and turn-off transitions.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4906 features a low -power consumption shutdown mode (the part is enabled by pulling the SD pin high). Additionally, the LM4906 features an internal thermal shutdown protection mechanism.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LM4906 1W, Bypass-Cap-less Audio Amp w/Internal Selectable Gain datasheet (Rev. E) | 2013/05/03 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM4906MMBD — 1W, 바이패스-커패시터 없는 오디오 전원 증폭기, 내부 선택 가능 게인 포함
The LM4906 is capable of delivering 1W of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a +5V power supply.
It is the first Texas Instruments Boomer Power Amplifier that does not require an external PSRR bypass capacitor. In addition, no output coupling (...)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VSSOP (DGK) | 8 | 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