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| 型號： | SA58672TK |
| 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)： | 7/27頁 |
| 文件大?。?/td> | 183K |
| 代理商： | SA58672TK |
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SA58672_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 8 June 2009
15 of 27
NXP Semiconductors
SA58672
3.0 W mono class-D audio amplier
11.6 Filter-free operation and ferrite bead lters
A ferrite bead low-pass lter can be used to reduce radio frequency emissions in
applications that have circuits sensitive to greater than 1 MHz. A ferrite bead low-pass
lter functions well for ampliers that must pass FCC unintentional radiation requirements
at greater than 30 MHz. Choose a bead with high-impedance at high frequencies and very
low-impedance at low frequencies. In order to prevent distortion of the output signal,
select a ferrite bead with adequate current rating.
Ferrite bead sources are:
TDK MPZ1608S221A: 220
at 100 MHz; 3 A peak max current;
0.04
DC resistance.
KOA CZP2AFTTD221P: 220
at 100 MHz; 2 A peak max current;
0.05
DC resistance.
Murata BLM21PG221SN1: 220
at 100 MHz; 2 A peak max current;
0.05
DC resistance.
The DC resistance should be as low as possible and the maximum current must exceed at
least 1 A. Impedance of 220
at 100 MHz is common spec, but 600 and 1 k ferrite
beads may be used. Generally, the current rating decreases with increasing impedance at
100 MHz. However, larger impedance at 100 MHz allows for a smaller, shunt capacitor
that will reduce the quiescent load current; this is important for battery operated
applications.
R3 and R4 are not populated for differential input drive. For single-ended input drive, either R3 or R4 are shorted to ground
using a 0
resistor (i.e., one input is AC grounded and the other is driven with the input signal).
Fig 14. SA58672 evaluation demo board schematic
SD
002aad872
AVDD
INM
AGND
INP
HVSON10
(3 mm
× 3 mm)
SA58672
1
2
3
4
5
10
9
8
7
6
OUTP
PVDD
PGND
OUTM
n.c.
C1
1
F
FB1
2 A - 220
FB2
2 A - 220
GND
C4
1 nF
C5
1 nF
GND
OUTP
OUTM
C6
1
F
GND
C7
10
F
PVDD
R2
R1
C3
1
F
C2
1
F
INM
INP
GND
R4
R3
GND
1
2
3
1
2
3
GND
SD
PVDD
SV1
SV2
EXT_AVDD
AVDD
PVDD
C8
10
F
GND9 GND6 GND
GND
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| SA58672UK | 3.0 W mono class-D audio amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA58672TK,138 | 功能描述:音頻放大器 Audio Amp SPKR 1-CH Mono 3W ClassD 10Pin 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 |
| SA58672TK138 | 制造商:NXP Semiconductors 功能描述:IC AUDIO AMP D 3W SON-10 |
| SA58672UK | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:3.0 W mono class-D audio amplifier |
| 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 |
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