LA4820M中文资料PDF规格书
LA4820M规格书详情
Overview
The LA4820M compound power IC is designed for portable information processing equipment, such as electronic book players and personal notebook computers, and provides on chip headphone stereo amplifier and monaural speaker amplifier functions required of such devices. This system IC also provides on chip a power-saving headphone jack plug-in/out detection function, which automatically switches the amplifiers, and an optimum volume level controller.
Features
• Power-saving headphone jack plug-in/out detection function on chip that electronically switches between the stereo headphone amplifier and the monaural BTL amplifier according to jack plug-in/out.
• The monaural amplifier has, as output control functions, a built-in output limiter that permits adjustment in accordance with the speaker impedance and a non-clipping circuit that outputs a sine wave suited to the output D range, while the headphone amplifier has a built-in user-friendly PVSS (Peak Volume Select System).
• On-chip ripple filter with a high ripple rejection ratio in
order to reduce power line noise.
• Less external components needed thanks to system and circuit technology, and low-capacitance design (22 µF or less) allowing support for chip components.
Functions
• Monaural BTL power amplifier
• Headphone OCL power amplifier (16 Ω) × 2
• Output control functions: Headphone power PVSS Monaural power Non-clipping circuit and output limiter
• Headphone jack plug-in/out detection function (monaural amplifier/headphone amplifier switching)
• Ripple filter
• Power mute switch
• Common amplifier on/off switching
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
SANYO/三洋 |
23+ |
NA/ |
3522 |
原装现货,当天可交货,原型号开票 |
询价 | ||
SANYO |
03/04+ |
DIP |
2998 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
SANYO/Sanyo/三洋/三洋电机株式 |
21+ |
DIP |
2998 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
SANYO |
2016+ |
DIP |
6523 |
只做原装正品现货!或订货! |
询价 | ||
SANYO |
DIP |
53650 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
SANYO |
2021+ |
DIP |
10310 |
百分百原装正品 |
询价 | ||
SANYO |
23+ |
DIP |
18000 |
询价 | |||
SANYO |
22+23+ |
New |
35136 |
绝对原装正品现货,全新深圳原装进口现货 |
询价 | ||
SANYO/三洋 |
22+ |
DIP-28 |
8000 |
原装正品支持实单 |
询价 | ||
SANYO |
23+24 |
DIP28 |
28950 |
原装现货.优势热卖.终端BOM表可配单 |
询价 |