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參數(shù)資料
| 型號： | TAS5352ADDV |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封裝： | GREEN, PLASTIC, HTSSOP-44 |
| 文件頁數(shù)： | 7/27頁 |
| 文件大小： | 833K |
| 代理商： | TAS5352ADDV |
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APPLICATION INFORMATION
PCB Material Recommendation
PVDD Capacitor Recommendation
Decoupling Capacitor Recommendations
System Design Recommendations
GVDD(+12V)
VDD(+12V)
PVDD
GVDD(+12V)
GND
TAS5508/18
PWM1_P
PWM1_M
PWM2_P
PWM2_M
VALID
Microcontroller
I2C
10H
100nF
50V
10H
100nF
TAS5352ADDV
GVDD_B
OTW
SD
PWM_A
RESET_AB
PWM_B
OC_ADJ
GND
AGND
VREG
M3
M2
M1
PWM_C
RESET_CD
PWM_D
GVDD_C
GVDD_D
BST_D
PVDD_D
OUT_D
GND_D
GND_C
OUT_C
PVDD_C
BST_C
BST_B
PVDD_B
OUT_B
GND_B
GND_A
VDD
GVDD_A
BST_A
PVDD_A
OUT_A
NC
PVDD_D
PVDD_A
NC
25V
33nF
100nF
50V
100nF
50V
100nF
470nF
100nF
50V
10H
470F
50V
470 F
50V
33nF 25V
3.3 W
100nF
0 W
22k
100nF
33nF 25V
100nF
50V
10nF
50V
100nF
470nF
100nF
50V
33nF
25V
100nF
50V
100nF
10H
3.3 W
10nF
50V
10nF
50V
3.3 W
1nF
50V
1nF
50V
1nF
50V
1nF
50V
3.3 W
10nF
50V
10nF
50V
3.3 W
10nF
50V
2.2 W
50V
GND
www.ti.com ........................................................................................................................................................................................... SLES239 – NOVEMBER 2008
FR-4 Glass Epoxy material with 2 oz. (70
m) is recommended for use with the TAS5352A. The use of this
material can provide for higher power output, improved thermal performance, and better EMI margin (due to
lower PCB trace inductance.
The large capacitors used in conjunction with each full-bridge, are referred to as the PVDD Capacitors. These
capacitors should be selected for proper voltage margin and adequate capacitance to support the power
requirements. In practice, with a well designed system power supply, 1000
F, 50-V will support more
applications. The PVDD capacitors should be low ESR type because they are used in a circuit associated with
high-speed switching.
In order to design an amplifier that has robust performance, passes regulatory requirements, and exhibits good
audio performance, good quality decoupling capacitors should be used. In practice, X7R should be used in this
application.
The voltage of the decoupling capacitors should be selected in accordance with good design practices.
Temperature, ripple current, and voltage overshoot must be considered. This fact is particularly true in the
selection of the 0.1
F that is placed on the power supply to each half-bridge. It must withstand the voltage
overshoot of the PWM switching, the heat generated by the amplifier during high power output, and the ripple
current created by high power output. A minimum voltage rating of 50-V is required for use with a 34.5 V power
supply.
The following schematics and PCB layouts illustrate "best practices" in the use of the TAS5352A.
Figure 14. Typical Differential (2N) BTL Application With AD Modulation Filters
Copyright 2008, Texas Instruments Incorporated
15
Product Folder Link(s): TAS5352A
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5352ADDVR | 功能描述:音頻放大器 125W Stereo Dig Amp Pwr Stage 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 |
| TAS5352DDV | 功能描述:音頻放大器 125W Class D Stereo Power Stage 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 |
| TAS5352DDV | 制造商:Texas Instruments 功能描述:Amplifier IC |
| TAS5352DDV6EVM | 功能描述:音頻 IC 開發(fā)工具 TAS5352DDV6EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TAS5352DDVG4 | 功能描述:音頻放大器 125W Class D Stereo Power Stage 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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