Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

TPA0242 Fiches technique(PDF) 21 Page - Texas Instruments

No de pièce TPA0242
Description  STEREO 2-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPA0242 Fiches technique(HTML) 21 Page - Texas Instruments

Back Button TPA0242 Datasheet HTML 17Page - Texas Instruments TPA0242 Datasheet HTML 18Page - Texas Instruments TPA0242 Datasheet HTML 19Page - Texas Instruments TPA0242 Datasheet HTML 20Page - Texas Instruments TPA0242 Datasheet HTML 21Page - Texas Instruments TPA0242 Datasheet HTML 22Page - Texas Instruments TPA0242 Datasheet HTML 23Page - Texas Instruments TPA0242 Datasheet HTML 24Page - Texas Instruments TPA0242 Datasheet HTML 25Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 29 page
background image
TPA0242
STEREO 2-W AUDIO POWER AMPLIFIER
WITH DC VOLUME CONTROL AND MUX CONTROL
SLOS287 – NOVEMBER 1999
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
bridged-tied load versus single-ended mode
Figure 33 shows a Class-AB audio power amplifier (APA) in a BTL configuration. The TPA0242 BTL amplifier
consists of two Class-AB amplifiers driving both ends of the load. There are several potential benefits to this
differential drive configuration, but, initially consider power to the load. The differential drive to the speaker
means that as one side is slewing up, the other side is slewing down, and vice versa. This in effect doubles the
voltage swing on the load as compared to a ground referenced load. Plugging 2
× VO(PP) into the power
equation, where voltage is squared, yields 4
× the output power from the same supply rail and load impedance
(see equation 5).
Power
+
V
(rms)
2
R
L
(5)
V
(rms) +
V
O(PP)
22
RL
2x VO(PP)
VO(PP)
–VO(PP)
VDD
VDD
Figure 33. Bridge-Tied Load Configuration
In a typical computer sound channel operating at 5 V, bridging raises the power into an 8-
Ω speaker from a
singled-ended (SE, ground reference) limit of 250 mW to 1 W. In sound power that is a 6-dB improvement —
which is loudness that can be heard. In addition to increased power there are frequency response concerns.
Consider the single-supply SE configuration shown in Figure 34. A coupling capacitor is required to block the
dc offset voltage from reaching the load. These capacitors can be quite large (approximately 33
µF to 1000 µF)
so they tend to be expensive, heavy, occupy valuable PCB area, and have the additional drawback of limiting
low-frequency performance of the system. This frequency limiting effect is due to the high pass filter network
created with the speaker impedance and the coupling capacitance and is calculated with equation 6.
f
(c) +
1
2
pR
L CC
(6)


Numéro de pièce similaire - TPA0242

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPA0242 TI1-TPA0242 Datasheet
494Kb / 32P
[Old version datasheet]   STEREO 2.8-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
TPA0242PWP TI1-TPA0242PWP Datasheet
494Kb / 32P
[Old version datasheet]   STEREO 2.8-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
TPA0242PWPR TI1-TPA0242PWPR Datasheet
494Kb / 32P
[Old version datasheet]   STEREO 2.8-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
TPA0242PWPRG4 TI1-TPA0242PWPRG4 Datasheet
494Kb / 32P
[Old version datasheet]   STEREO 2.8-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
TPA0242 TI1-TPA0242_16 Datasheet
494Kb / 32P
[Old version datasheet]   STEREO 2.8-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
More results

Description similaire - TPA0242

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPA0232 TI-TPA0232 Datasheet
449Kb / 30P
[Old version datasheet]   STEREO 2-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
TPA0242 TI1-TPA0242_16 Datasheet
494Kb / 32P
[Old version datasheet]   STEREO 2.8-W AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL AND MUX CONTROL
TPA0132 TI-TPA0132 Datasheet
449Kb / 30P
[Old version datasheet]   2-W STEREO AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
TPA0142 TI-TPA0142 Datasheet
455Kb / 30P
[Old version datasheet]   2-W STEREO AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
logo
Unisonic Technologies
PA6021 UTC-PA6021 Datasheet
274Kb / 6P
   2-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
logo
Texas Instruments
TPA6021A4 TI-TPA6021A4 Datasheet
1Mb / 26P
[Old version datasheet]   2-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
TPA0132 TI1-TPA0132_15 Datasheet
476Kb / 30P
[Old version datasheet]   2.8-W STEREO AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
TPA0142 TI1-TPA0142_16 Datasheet
492Kb / 32P
[Old version datasheet]   2.8-W STEREO AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
TPA0162 TI-TPA0162 Datasheet
447Kb / 29P
[Old version datasheet]   2-W STEREO AUDIO POWER AMPLIFIER WITH DIGITAL VOLUME CONTROL
TPA0152 TI-TPA0152 Datasheet
444Kb / 29P
[Old version datasheet]   2-W STEREO AUDIO POWER AMPLIFIER WITH DIGITAL VOLUME CONTROL
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 28 29


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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