4Part Number : TAS5760L
Function : General Purpose I2S Input Class D Amplifier
Package : TSSOP 48 Pin Type
Maker : Texas Instruments
Pinouts : 
Description :
The TAS5760L is a stereo I2S input device which includes hardware and software (I²C) control modes, integrated digital clipper, several gain options, and a wide power supply operating range to enable use in a multitude of applications. The TAS5760L operates with a nominal supply voltage from 4.5 to 15 VDC.
An optimal mix of thermal performance and device cost is provided in the 120 mΩ R DS(ON)
of the output MOSFETs. Additionally, a thermally enhanced 48-Pin TSSOP provides excellent operation in the elevated ambient temperatures found in modern consumer electronic devices.
Features :
1. Selectable Hardware or Software Control
2. Integrated Digital Output Clipper
3. Programmable I²C Address
4. Closed-Loop Amplifier Architecture
5. Adjustable Switching Frequency for Speaker Amplifier
https://www.ti.com/product/TAS5760L
Datasheet PDF Download : 
Others datasheet of same file :
TAS5760, TAS5760LDAP, TAS5760LDAPR, TAS5760LDCA, TAS5760LDCAR