Zakładka z wyszukiwarką danych komponentów
  Polish  ▼
ALLDATASHEET.PL

X  

TPA2000D1-Q1 Arkusz danych(PDF) 9 Page - Texas Instruments

Numer części TPA2000D1-Q1
Szczegółowy opis  2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
Download  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

TPA2000D1-Q1 Arkusz danych(HTML) 9 Page - Texas Instruments

Back Button TPA2000D1-Q1_15 Datasheet HTML 5Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 6Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 7Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 8Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 9Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 10Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 11Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 12Page - Texas Instruments TPA2000D1-Q1_15 Datasheet HTML 13Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 22 page
background image
APPLICATION INFORMATION
Eliminating the Output Filter With the TPA2000D1
Effect on Audio
Traditional Class-D Modulation Scheme
O V
−5 V
+5 V
Current
OUTP
Differential Voltage
Across Load
OUTN
TPA2000D1 Modulation Scheme
TPA2000D1-Q1
www.ti.com ........................................................................................................................................ SGLS137E – SEPTEMBER 2002 – REVISED OCTOBER 2008
This section explains why the user can eliminate the output filter with the TPA2000D1.
The class-D amplifier outputs a pulse-width modulated (PWM) square wave, which is the sum of the switching
waveform and the amplified input audio signal. The human ear acts as a band-pass filter such that only the
frequencies between approximately 20 Hz and 20 kHz are passed. The switching frequency components are
much greater than 20 kHz, so the only signal heard is the amplified input audio signal.
The traditional class-D modulation scheme, which is used in the TPA005Dxx family, has a differential output
where each output is 180 degrees out of phase and changes from ground to the supply voltage, VDD. Therefore,
the differential pre-filtered output varies between positive and negative VDD, where filtered 50% duty cycle yields
0 V across the load. The traditional class-D modulation scheme with voltage and current waveforms is shown in
Figure 9. Even at an average of 0 V across the load (50% duty cycle), the current to the load is high, causing
high loss, thus causing a high supply current.
Figure 9. Traditional Class-D Modulation Scheme's Output Voltage and Current Waveforms Into an
Inductive Load With No Input
The TPA2000D1 uses a modulation scheme that still has each output switching from 0 to the supply voltage.
However, OUTP and OUTN are now in phase with each other with no input. The duty cycle of OUTP is greater
than 50% and OUTN is less than 50% for positive voltages. The duty cycle of OUTP is less than 50% and OUTN
is greater than 50% for negative voltages. The voltage across the load sits at 0 V throughout most of the
switching period, greatly reducing the switching current, which reduces any I2R losses in the load.
Copyright © 2002–2008, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Link(s): TPA2000D1-Q1


Podobny numer części - TPA2000D1-Q1_15

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Texas Instruments
TPA2000D1-Q1 TI-TPA2000D1-Q1 Datasheet
313Kb / 19P
[Old version datasheet]   2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
More results

Podobny opis - TPA2000D1-Q1_15

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Texas Instruments
TPA2000D1 TI-TPA2000D1 Datasheet
205Kb / 14P
[Old version datasheet]   2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
TPA2000D1-Q1 TI-TPA2000D1-Q1 Datasheet
313Kb / 19P
[Old version datasheet]   2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
TPA2000D1 TI-TPA2000D1_15 Datasheet
807Kb / 24P
[Old version datasheet]   2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
TPA2000D1 TI-TPA2000D1_06 Datasheet
267Kb / 20P
[Old version datasheet]   2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
logo
Lyontek Inc.
LY8006 LYONTEK-LY8006_17 Datasheet
878Kb / 16P
   3.3 W Mono Filterless Class D Audio power Amplifier
logo
Texas Instruments
TPA2001D1 TI-TPA2001D1_06 Datasheet
220Kb / 15P
[Old version datasheet]   1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
logo
Lyontek Inc.
LY8006 LYONTEK-LY8006_13 Datasheet
775Kb / 16P
   3.3 W Mono Filterless Class D Audio power Amplifier
LY8010 LYONTEK-LY8010_13 Datasheet
823Kb / 21P
   3.3 W Mono Filterless Class D Audio power Amplifier
logo
Texas Instruments
TPA2001D1 TI-TPA2001D1 Datasheet
189Kb / 13P
[Old version datasheet]   1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
logo
List of Unclassifed Man...
EUA2005 ETC2-EUA2005 Datasheet
831Kb / 14P
   1.5-W Mono Filterless Class-D Audio Power Amplifier
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


Arkusz danych Pobierz

Go To PDF Page


Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
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