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| 型號(hào)： | SA58672UK |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 音頻放大器 |
| 英文描述： | 3.0 W mono class-D audio amplifier |
| 封裝： | SA58672TK<SOT650-2 (HVSON10)|<<http://www.nxp.com/packages/SOT650-2.html<1<Always Pb-free,;SA58672UK<Uncased die|<<<1<Always Pb-free,; |
| 文件頁數(shù)： | 6/27頁 |
| 文件大小： | 183K |
| 代理商： | SA58672UK |
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SA58672_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 8 June 2009
14 of 27
NXP Semiconductors
SA58672
3.0 W mono class-D audio amplier
(3)
The input signal may be DC-coupled, but not using input coupling capacitors may
increase the output offset voltage.
11.4 PCB layout considerations
The component location is very important for performance of the SA58672. Place all
external components very close to the device. Placing decoupling capacitors directly at
the power supply pins increases efciency because the resistance and inductance in the
trace between the device power supply pins and the decoupling capacitor causes a loss in
power efciency.
The trace width and routing are also very important for power output and noise
considerations.
For high current terminals (PVDD, PGND and audio output), the trace widths should be
maximized to ensure proper performance and output power. Use at least 500
m wide
traces.
For the input pins (INP, INM), the traces must be symmetrical and run side-by-side to
maximize common-mode cancellation.
11.5 Evaluation demo board
The SA58672 evaluation demo board schematic is shown in Figure 14. An evaluation
demo board is available and it may be used for either differential or single-ended (SE)
input conguration. A component position on the PCB is provided to AC ground one of the
inputs using a 0
chip resistor. When driving SE, the undriven input must be at the same
DC level as driven input. If the input is driven from an iPOD or MP3 player, the undriven
input is AC grounded; however, if driven from a CODEC, the undriven input is AC
decoupled to the same level as the CODEC output. Usually, a Vref is provided on the
CODEC.
C
i
1
2
π R
i
×
f
3dB
–
×
--------------------------------------
=
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|---|---|
| SA58672UK,027 | 功能描述:音頻放大器 3.W MONO CLASS D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| SA58672UK-G | 功能描述:音頻放大器 3.W MONO CLASS D AUDIO AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| SA58780 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Sense current amplifier with selectable gain |
| SA5888 | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:5CH BRL DRIVER FOR DVD PLAYER WITH DISC BIDIRECTIONAL DRIVER AND TWO VARIABLE REGULATORS |
| SA5888G | 制造商:SILAN 制造商全稱:Silan Microelectronics Joint-stock 功能描述:5CH BRL DRIVER FOR DVD PLAYER WITH DISC BIDIRECTIONAL DRIVER AND TWO VARIABLE REGULATORS |
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