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參數(shù)資料
| 型號： | TPA2100P1YZHR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, AUDIO AMPLIFIER, PBGA16 |
| 封裝： | 2.10 X 2.10 MM, GREEN, WCSP-16 |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 963K |
| 代理商： | TPA2100P1YZHR |
Vdd SW
IN-
IN+
GND
OUT+
OUT-
VccOUT
VccIN
CIN
SD
SDa
GAIN
Digital
BaseBand
Analog
Baseband
or
CODEC
VIN
2.5Vto
5.5 V
Vref
BST
10 nF
1 F
m
4.7 H
m
10 F
m
10~20 W
10~22 H
m
10 F
m
0.1~2 F
m
1 F
m
R
L
SPK
R
C
ζ =
2
L
(4)
AUDMAX
SPK
1
=
2
R
C
f
p
(5)
AUDMAX
SPK
1
XC =
2 ×
×
× C
f
p
(6)
AUDMAX
XL = 2
L
f
p
(7)
(
)
2
Z =
R
+
XL
XC
-
(8)
OUTPEAK
CLASSDPEAK
V
I
=
Z
(9)
RESISTOR – SPEAKER LOAD CONFIGURATION
www.ti.com ........................................................................................................................................................................................... SLOS595 – DECEMBER 2008
Figure 16. Application Schematic with Resistor – Speaker – Inductor Load Configuration
For the resistor – speaker – inductor load configuration, it is desired to make the output load configuration
overdamped (Zeta (
ζ) > 0.707). Use Equation 4 to calculate ζ:
If
ζ is greater than one, then the maximum audio frequency will be limited by the resistor – speaker capacitance
low pass filter as shown in Equation 5.
Calculate equivalent load impedance with Equation 6, through Equation 9.
To calculate the proper boost converter inductor required for this application, see the Inductor Selection section.
Note that an input low pass filter should be added before the audio amplifier in order to limit the audio frequency,
fAUDMAX.
This load configuration is similar to the resistor – speaker – resistor load configuration. Apply the same equations
here to calculate the maximum audio frequency and maximum required current from the class-D audio amplifier.
Copyright 2008, Texas Instruments Incorporated
11
Product Folder Link(s): TPA2100P1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA2100P1YZHT | 功能描述:音頻放大器 19Vpp Mono Class D Audio Amplifier 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 |
| TPA2100P1YZHT | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC |
| TPA21CCGPC0 | 制造商:TE Connectivity 功能描述:Switch Push Button N.O. DPST Round Plunger 20VAC 20VDC 0.4VA Momentary Contact PC Pins Thru-Hole Loose Piece |
| TPA21CCGRA0 | 功能描述:按鈕開關(guān) SWITCH PB 2XSPST MOM RND BLK RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關(guān)功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風(fēng)格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
| TPA21CCGRA004 | 功能描述:按鈕開關(guān) FLUSHBUTTON RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關(guān)功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風(fēng)格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
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