參數(shù)資料
型號(hào)： TPA2100P1YZHT
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(yè)數(shù)： 2/23頁(yè)
文件大?。?/td> 963K
代理商： TPA2100P1YZHT
RESISTOR – SPEAKER – RESISTOR LOAD CONFIGURATION
Vdd SW
IN-
IN+
GND
OUT +
OUT -
VccOUT
VccIN
C IN
SD
SDa
GAIN
Digital
BaseBand
Analog
Baseband
or
CODEC
VIN
2 .5 Vto
5.5 V
Vref
BST
10nF
10 F
m
10 F
m
1 F
m
4.7 H
m
5~10 W
1 F
m
0.1~2 F
m
R
AUDMAX
SPK
1
=
2
R
C
f
p
(1)
OUTPEAK
CLASSDPEAK
2
V
I
=
R
+ XC
(2)
AUDMAX
SPK
1
XC =
2
f
C
p
(3)
RESISTOR – SPEAKER – INDUCTOR LOAD CONFIGURATION
SLOS595 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
This is the simplest configuration. However, this type of load configuration does not achieve the best efficiency
possible. Thus, it is recommended to use the resistor – speaker – inductor load configuration. The following
figure shows an example of the resistor – speaker – resistor configuration.
Figure 15. Application Schematic with Resistor – Speaker – Resistor Load Configuration
For the RC load configuration, only two calculations are required. Note that R in Equation 1 is the sum of the two
output resistors in Figure 15.
The highest desired audio frequency will be limited by the RC low-pass filter configuration of the load:
Peak Output Current from the Class-D Amplifier should therefore be limited to the maximum audio frequency:
Where XC is:
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.
The second configuration with a resistor – speaker – inductor load is the most efficient configuration and is the
preferred solution. Figure 16 shows an example of this configuration.
10
Copyright 2008, Texas Instruments Incorporated
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 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(diǎn)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(jí):IP 40 端接類型:Solder 觸點(diǎn)電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級(jí):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(diǎn)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(jí):IP 40 端接類型:Solder 觸點(diǎn)電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級(jí):UL 94 V-0
TPA21FFGPC004 功能描述:Pushbutton Switch SPDT Standard Through Hole 制造商:te connectivity alcoswitch switches 系列:TP 包裝:散裝 零件狀態(tài):有效 類型:標(biāo)準(zhǔn) 電路:SPDT 開關(guān)功能:開-瞬時(shí) 額定電流:0.4VA（AC/DC） 額定電壓 - AC:20V 額定電壓 - DC:20V 致動(dòng)器類型:圓形，柱塞 顏色 - 致動(dòng)器/蓋帽:黑 照明類型，顏色:- 照明電壓（標(biāo)稱值）:- 安裝類型:通孔 端子類型:PC 引腳 侵入防護(hù):- 特性:- 面板開口尺寸:- 工作溫度:-30°C ~ 65°C 機(jī)械壽命:- 電氣壽命:80，000 次循環(huán) 標(biāo)準(zhǔn)包裝:25
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