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

X  

TPA6133A2RTJR Folha de dados(PDF) 11 Page - Texas Instruments

Click here to check the latest version.
Nome de Peças TPA6133A2RTJR
Descrição Electrónicos  138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER
Download  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

TPA6133A2RTJR Folha de dados(HTML) 11 Page - Texas Instruments

Back Button TPA6133A2RTJR Datasheet HTML 7Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 8Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 9Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 10Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 11Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 12Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 13Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 14Page - Texas Instruments TPA6133A2RTJR Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 18 page
background image
fc
IN +
1
2p R
IN CIN
C
IN +
1
2p fc
IN RIN
or
C(DCINPUT-BLOCKING)
1
2
CIN =
TPA6133A2
www.ti.com
SLOS821 – JUNE 2013
CIN is a theoretical capacitor used for mathematical calculations only. Its value is the series combination of the dc
input-blocking capacitors, C(DCINPUT-BLOCKING). Use Equation 3 to determine the value of C(DCINPUT-BLOCKING). For
example, if CIN is equal to 0.22 μF, then C(DCINPUT-BLOCKING) is equal to about 0.47 μF.
(3)
The two C(DCINPUT-BLOCKING) capacitors form a high-pass filter with the input impedance of the TPA6133A2. Use
Equation 3 to calculate CIN, then calculate the cutoff frequency using CIN and the differential input impedance of
the TPA6133A2, RIN, using Equation 4. Note that the differential input impedance changes with gain. See for
input impedance values. The frequency and/or capacitance can be determined when one of the two values are
given.
(4)
If a high pass filter with a -3 dB point of no more than 20 Hz is desired over all gain settings, the minimum
impedance would be used in the above equation. shows this to be 37 k
Ω. The capacitor value by the above
equation would be 0.215
μF. However, this is CIN, and the desired value is for C(DCINPUT-BLOCKING). Multiplying CIN
by 2 yields 0.43
μF, which is close to the standard capacitor value of 0.47 μF. Place 0.47 μF capacitors at each
input terminal of the TPA6133A2 to complete the filter.
Charge Pump Flying Capacitor and CPVSS Capacitor
The charge pump flying capacitor serves to transfer charge during the generation of the negative supply voltage.
The CPVSS capacitor must be at least equal to the flying capacitor in order to allow maximum charge transfer.
Low ESR capacitors are an ideal selection, and a value of 1 µF is typical.
Decoupling Capacitors
The TPA6133A2 is a DirectPath™ headphone amplifier that requires adequate power supply decoupling to
ensure that the noise and total harmonic distortion (THD) are low. Use good low equivalent-series-resistance
(ESR) ceramic capacitors, typically 1.0 µF. Find the smallest package possible, and place as close as possible to
the device VDD lead. Placing the decoupling capacitors close to the TPA6133A2 is important for the performance
of the amplifier. Use a 10
μF or greater capacitor near the TPA6133A2 to filter lower frequency noise signals.
The high PSRR of the TPA6133A2 will make the 10
μF capacitor unnecessary in most applications.
Layout Recommendations
Exposed Pad On TPA6133A2RTJ Package
Solder the exposed metal pad on the TPA6133A2RTJ QFN package to the a pad on the PCB. The pad on the
PCB may be grounded or may be allowed to float (not be connected to ground or power). If the pad is grounded,
it must be connected to the same ground as the GND pins (3, 9, 10, 13, and 19). See the layout and mechanical
drawings at the end of the datasheet for proper sizing. Soldering the thermal pad improves mechanical reliability,
improves grounding of the device, and enhances thermal conductivity of the package.
GND Connections
The GND pin for charge pump should be decoupled to the charge pump VDD pin, and the GND pin adjacent to
the Analog VDD pin should be separately decoupled to each other.
Modes of Operation
The TPA6133A2 supports two modes of operation. When the SD pin is driven to logic 0, the device is in low
power mode where the charge pump is powered down, the headphone channel is disabled and the outputs are
weakly pulled to ground. When the SD pin is driven to logic 1, the device enters an active mode with charge
pump powered up and headphone channel enabled with channel gain of +4dB. The transition from inactive to
active and active to inactive states is done softly to avoid audible artifacts.
Copyright © 2013, Texas Instruments Incorporated
11
Product Folder Links: TPA6133A2


Nº de peça semelhante - TPA6133A2RTJR

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Texas Instruments
TPA6133A2RTJR TI1-TPA6133A2RTJR Datasheet
1Mb / 26P
[Old version datasheet]   138-mW DirectPath Stereo Headphone Amplifier
TPA6133A2RTJR TI1-TPA6133A2RTJR Datasheet
1Mb / 26P
[Old version datasheet]   138-mW DirectPath Stereo Headphone Amplifier
More results

Descrição semelhante - TPA6133A2RTJR

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Texas Instruments
TPA6133A2 TI1-TPA6133A2_15 Datasheet
1Mb / 26P
[Old version datasheet]   138-mW DirectPath Stereo Headphone Amplifier
TPA6133A2 TI1-TPA6133A2_17 Datasheet
1Mb / 26P
[Old version datasheet]   138-mW DirectPath Stereo Headphone Amplifier
TPA6133A2 TI1-TPA6133A2_14 Datasheet
1Mb / 19P
[Old version datasheet]   138-mW DIRECTPATH??STEREO HEADPHONE AMPLIFIER
TPA6133A2 TI-TPA6133A2_15 Datasheet
1Mb / 26P
[Old version datasheet]   TPA6133A2 138-mW DirectPath??Stereo Headphone Amplifier
TPA6130A2 TI-TPA6130A2_07 Datasheet
1Mb / 26P
[Old version datasheet]   138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL
logo
TEXAS ADVANCED OPTOELEC...
TPA6130A2 TAOS-TPA6130A2 Datasheet
1Mb / 28P
   138-mW DIRECTPATH??STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL
logo
Texas Instruments
TPA6130A2 TI-TPA6130A2 Datasheet
1Mb / 26P
[Old version datasheet]   138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL
TPA6130A2_0701 TI-TPA6130A2_0701 Datasheet
1Mb / 29P
[Old version datasheet]   138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL
TPA6130A2 TI1-TPA6130A2_17 Datasheet
1Mb / 39P
[Old version datasheet]   138-mW DIRECTPATH Stereo Headphone Amplifier with I2C Volume Control
TPA6130A2 TI-TPA6130A2_15 Datasheet
1Mb / 39P
[Old version datasheet]   TPA6130A2 138-mW DIRECTPATH??Stereo Headphone Amplifier with I2C Volume Control
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18


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