參數(shù)資料
型號(hào)： LM4867
廠(chǎng)商： National Semiconductor Corporation
元件分類(lèi)： 音頻放大器
英文描述： Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
中文描述： 輸出瞬態(tài)免費(fèi)雙2.1W音頻放大器加上沒(méi)有耦合電容器立體聲耳機(jī)功能
文件頁(yè)數(shù)： 10/26頁(yè)
文件大?。?/td> 763K
代理商： LM4867
Application Information
(Continued)
The LM4867’s pin configuration simplifies the process of
upgrading systems that use the LM4863. Except for its four
MUX function pins, the LM4867’s pin configuration matches
the LM4863’s pin configuration. If the LM4867’s MUX func-
tionality is not needed when replacing an LM4863, connect
the MUX CTRL pin to either V
or ground.
To ensure
correct amplifier operation, unused MUX inputs must be
tied to GND.
As shown in Table 1, grounding the MUX CTRL
pin selects stereo input 1 (IN A1 and IN B1), whereas
applying V
to the MUX CTRL pin selects stereo input 2
(IN A2 and IN B2).
The LM4867’s unique headphone sense circuit requires a
dual switch headphone jack. Replace the four-terminal head-
phone jack used with the LM4863 and LM4873 with the
five-terminal headphone jack, such as the Switchcraft
35RAPC4BH3, shown in Figure 4. Connect the +OUT A
(Amp2A) pin to the five-terminal headphone jack’s sleeve
pin.
DS200013-57
FIGURE 3. Single-ended output signal (Trace B) is
devoid of transients. The SHUTDOWN pin is driven by
a shutdown signal (Trace A). The inverting output
(Trace C) and the V
output (Trace D) are applied
across a 32
BTL load.
DS200013-31
FIGURE 4. Typical Audio Amplifier Application Circuit
(Pin out shown for the 24-pin Exposed-DAP LLP package. Numbers in ( ) are for the 20-pin MTE and MT packages.)
L
www.national.com
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相關(guān)PDF資料
PDF描述
LM4867LQ Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
LM4867MT Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
LM4867MTE Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
LM4868 Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
LM4868MTE Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4867_02 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Output-Transient-Free Dual 2.1W Audop Amplifier Plus No Coupling Capacitor Stereo Headphone Function
LM4867A E WAF 制造商:Texas Instruments 功能描述:
LM4867LQ 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:否 類(lèi)別:集成電路 (IC) >> 線(xiàn)性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類(lèi)型:H 類(lèi) 輸出類(lèi)型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類(lèi)型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
LM4867LQ/NOPB 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Speaker 2-CH Stereo 3W Class-AB 24-Pin LLP EP T/R
LM4867MT 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
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