| 品牌 | esmt | 型號(hào) | ad5265a-seg |
| 批號(hào) | 2010 | 封裝 | tssop-24-e |
| 營(yíng)銷方式 | 直銷 | 產(chǎn)品性質(zhì) | 熱銷 |
| 處理信號(hào) | 模擬信號(hào) | 工藝 | 半導(dǎo)體集成 |
| 導(dǎo)電類型 | 雙極型 | 集成程度 | 小規(guī)模 |
| 規(guī)格尺寸 | 3（mm） | 工作溫度 | -40~85（℃） |
| 靜態(tài)功耗 | 10（mw） |
2.5w/ch stereo filter-less class-d audio amplifier with
headphone driver
features
zsupply voltage range: 2.5 v to 5.5 v
zsupport single-ended or differential analog input
zlow static operation current
zlow shut-down current
zshort power-on transient time
ztwo volume control modes
dc volume control from -38db to +20db
4-step volume gain of +6, +12, +18, +24db
zindependent shut-down control for left or right channel
zshort-circuit and thermal protection
zloudspeaker power within 10% thd+n
1.5w/ch into 8ωloudspeaker
2.5w/ch into 4ωloudspeaker
zloudspeaker efficiency
90% @ 8ω, po,10% thd+n
85% @ 4ω, po,10% thd+n
zheadphone power within 1% thd+n
120mw/ch into 16ωheadphone
applications
zmonitor audio
zpda
zportable multimedia devices
znotebook computer
zmobile phone
description
the ad5265a is a stereo, filter-less class-d audio amplifier with headphone driver. operating with 5.0v loudspeaker driver supply, it can deliver 2.5w/ch output power into 4 ω loudspeaker within 10% thd+n and 120mw/ch output power into 16ω headphone within 1% thd+n.
the ad5265a has two volume control modes by setting mode pin. while mode pin is set logic high,ad5265a is in dc volume control mode with 31-step volume gain from -38 db to +20db, adjusted by the dc voltage applied on g0 pin. otherwise, ad5265a is the 4-step volume gain mode with +6db, +12db, +18db, and +24db gain, selected by setting g0 and g1 pins. the two volume adjustment modes are designed to fit the different volume control requirements in various applications. not only the stereo class-d amplifier, ad5265a also has a fixed gain (-1v/v) stereo class-ab headphone driver.
the ad5265a packaged as e-tssop 24l is a stereo audio amplifier with high efficiency, which leads to longer battery life, less heat sink requirement, smaller board size and lower systemcost, and suitable for the notebook computer, and portable multimedia devices. with the independent shut-down control for left or right channel, the
ad5265a is more convenient to control the left and right channels.