Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

TPA0211DGNG4 Folha de dados(PDF) 11 Page - Texas Instruments

Click here to check the latest version.
Nome de Peças TPA0211DGNG4
Descrição Electrónicos  2-W MONO AUDIO POWER AMPLIFIER
Download  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

TPA0211DGNG4 Folha de dados(HTML) 11 Page - Texas Instruments

Back Button TPA0211DGNG4 Datasheet HTML 7Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 8Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 9Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 10Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 11Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 12Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 13Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 14Page - Texas Instruments TPA0211DGNG4 Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 27 page
background image
TPA0211
2-W MONO AUDIO POWER AMPLIFIER
SLOS275D – JANUARY 2000 – REVISED NOVEMBER 2002
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
gain setting via input resistance
The gain of the input stage is set by the user-selected input resistor and a 50-k
Ω internal feedback resistor.
However, the power stage is internally configured with a gain of –1.25 V/V in SE mode, and –2.5 V/V in BTL
mode. Thus, the feedback resistor (RF) is effectively 62.5 kΩ in SE mode and 125 kΩ in BTL mode. Therefore,
the overall gain can be calculated using equations (1) and (2).
(1)
A
V +
–125 k
W
R
I
(BTL)
(2)
A
V +
–62.5 k
W
R
I
(SE)
The –3 dB frequency can be calculated using equation 3:
(3)
ƒ
–3dB +
1
2
p R
I
C
i
If the filter must be more accurate, the value of the capacitor should be increased while the value of the resistor
to ground should be decreased. In addition, the order of the filter could be increased.
input capacitor, Ci
In the typical application an input capacitor, Ci, is required to allow the amplifier to bias the input signal to the
proper dc level for optimum operation. In this case, Ci and the input resistance of the amplifier, RI, form a
high-pass filter with the corner frequency determined in equation 4.
f
c(highpass) +
1
2
pR
I
C
i
–3 dB
fc
(4)
The value of Ci is important to consider as it directly affects the bass (low frequency) performance of the circuit.
Consider the example where RI is 10 kΩ and the specification calls for a flat bass response down to 40 Hz.
Equation 2 is reconfigured as equation 5.
C
i +
1
2
pR
I
fc
(5)
In this example, CI is 0.4 µF so one would likely choose a value in the range of 0.47 µF to 1 µF. A further
consideration for this capacitor is the leakage path from the input source through the input network (Ci) and the
feedback network to the load. This leakage current creates a dc offset voltage at the input to the amplifier that
reduces useful headroom, especially in high gain applications. For this reason a low-leakage tantalum or
ceramic capacitor is the best choice. When polarized capacitors are used, the positive side of the capacitor
should face the amplifier input in most applications as the dc level there is held at VDD/2, which is likely higher
than the source dc level. Note that it is important to confirm the capacitor polarity in the application.


Nº de peça semelhante - TPA0211DGNG4

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Texas Instruments
TPA0211DGNG4 TI-TPA0211DGNG4 Datasheet
746Kb / 26P
[Old version datasheet]   2-W MONO AUDIO POWER AMPLIFIER
More results

Descrição semelhante - TPA0211DGNG4

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Texas Instruments
TPA0211 TI-TPA0211 Datasheet
88Kb / 6P
[Old version datasheet]   2-W MONO AUDIO POWER AMPLIFIER
TPA0211 TI-TPA0211_15 Datasheet
889Kb / 28P
[Old version datasheet]   2-W MONO AUDIO POWER AMPLIFIER
TPA0211 TI-TPA0211_07 Datasheet
746Kb / 26P
[Old version datasheet]   2-W MONO AUDIO POWER AMPLIFIER
TPA4861 TI-TPA4861_15 Datasheet
641Kb / 26P
[Old version datasheet]   1-W MONO AUDIO POWER AMPLIFIER
TPA4860 TI-TPA4860_06 Datasheet
442Kb / 24P
[Old version datasheet]   1-W MONO AUDIO POWER AMPLIFIER
TPA4860 TI-TPA4860_15 Datasheet
655Kb / 28P
[Old version datasheet]   1-W MONO AUDIO POWER AMPLIFIER
TPA4861 TI-TPA4861_07 Datasheet
486Kb / 23P
[Old version datasheet]   1-W MONO AUDIO POWER AMPLIFIER
TPA4860 TI-TPA4860 Datasheet
430Kb / 25P
[Old version datasheet]   1-W MONO AUDIO POWER AMPLIFIER
TPA0213 TI-TPA0213_15 Datasheet
791Kb / 26P
[Old version datasheet]   2-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
TPA0233 TI-TPA0233_07 Datasheet
726Kb / 25P
[Old version datasheet]   2-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com