![]() |
Electronic Components Datasheet Search |
|
TPA3220 Datasheet(PDF) 13 Page - Texas Instruments |
|
|
|
TPA3220 Datasheet(HTML) 13 Page - Texas Instruments |
13 / 39 page ![]() TPA322x IN2_M IN1_P IN2_P IN1_P IN1_M + - + - IN1_M IN2_P IN2_M TPA322x AVDD GND VDD GVDD 100nF 470uF 1µF 1µF +5V 3R3 5V LDO TPA322x GND GVDD 100nF 470uF 1µF 1µF 3R3 +7V”PVDD AVDD GND VDD 5V LDO 13 TPA3220 www.ti.com SLASEN3 – JANUARY 2018 Product Folder Links: TPA3220 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated 9.3 Feature Description 9.3.1 Internal LDO TPA3220 has a built in optional LDO (Low dropout voltage regulator) to supply the analog and digital circuits as well as the gate drive for the output stages. The LDO can be used in systems where only the high voltage power rail is available, hence no additional power supply rails need to be generated for the TPA3220 to operate. As being a linear regulator, the LDO will add to the power losses of the device due to the (PVDD-5V) voltage drop and the supply current for AVDD and GVDD given in the Electrical Characteristics table. Figure 2. Internal LDO for Single Supply Systems When using the internal LDO in TPA3220 the VDD terminal should be connected to a voltage source between 7V and PVDD. In a single supply system the VDD terminal should be connected directly to the PVDD terminal. The LDO output is connected to the AVDD terminal, and can be used to supply the gate drive by supplying the GVDD from AVDD through a RC filter for best noise performance as shown in Figure 2. Figure 3. Internal LDO Bypass for Highest Power Efficiency For highest system power efficiency the LDO can be bypassed by connecting VDD to an external 5 V supply. In this configuration AVDD and GVDD should be supplied by 5 V from the external power supply. GVDD should be supplied through a RC filter for best noise performance as shown in Figure 3. 9.3.1.1 Input Configuration, Gain Setting And Master / Slave Operation TPA3220 is designed to accept either a differential or a single-ended audio input signal. To accept a wide range of system front ends TPA3220 has selectable input gain that allows full scale output with a wide range of input signal levels. Best system noise performance is obtained with balanced audio interface. However, to be used in systems with only a single ended audio input signal available, one input terminal can be connected to AC ground, to accept single ended audio input signals. Figure 4. Balanced Audio Input Configuration |
Similar Part No. - TPA3220 |
|
Similar Description - TPA3220 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
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 |