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參數(shù)資料
| 型號： | TDF8546SD/N1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27 |
| 封裝： | PLASTIC, SOT878-1, 27 PIN |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 511K |
| 代理商： | TDF8546SD/N1 |
TDF8546
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 30 August 2011
13 of 61
NXP Semiconductors
TDF8546
I2C-bus controlled 4
45 W best efficiency amplifier
7.3.2 Switching distortion
constant at ACGND level, and current in both channels is shared (best efficiency mode
active). If the output voltage increases above half the supply voltage, the switch needs to
open and voltage V2 needs to decrease to eliminate distortion from the front loud speaker
RL. This opening and closing of the switch can cause additional distortion. By using a
patented switch construction, no amplifier part is switched on and off and hot switching
(switching within the signal current) is not required. This results in low THD values at high
output powers in best efficiency mode; see Figure 10.
a. 2
2 channel best efficiency mode
b. 4-channel best efficiency mode
Fig 8.
2
2 channel and 4 channel best efficiency mode
in-
in+
in-
in+
SWright
SWleft
Channel 3
Channel 4
Channel 1
Channel 2
001aam691
in-
in+
in-
in+
SWright
SWleft
SWright
SWleft
001aam692
SW4-channel
Channel 3
Channel 4
Channel 1
Channel 2
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| TDF8546TH/N1,518 | 功能描述:IC AUDIO AMP BTL QUAD AB 36HSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機 在某負載時最大輸出功率 x 通道數(shù)量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點:消除爆音，差分輸入，I²C，靜音，關(guān)閉，音量控制 安裝類型: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) 其它名稱:MAX97000EWA+T-ND |
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| TDF8548AJ/N1U | 制造商:NXP Semiconductors 功能描述:TDF8548AJ/DBS27P/TUBE-BULK//N1 - Rail/Tube 制造商:NXP Semiconductors 功能描述:IC AUDIO DEVICE DBS27P |
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