STA381BWSTR Overview
Moreover, the book has an appendix that contains a case study. There is only one mounting type recommended for the product, which is Surface Mount. There is a 48-VFQFN Exposed Pad case embedded in it. In this case, the device has 2 channels. There are Fully Integrated Processor functions included in this part for your reference. This device can be applied in both Pre-Amplifier and X directions. As far as I know, it is supplied within 4.5V~25.5V days. In this device, the temperature range is 0°C~70°C TA, which is the range of this device. There are 48 terminations on the chip, which is the number of terminations on the chip. You can find similar parts by searching for the STA381 family of parts. The following specifications are related to the device: Full Flexible Amplification, which can be found here. The chip has 48 pins that are accessible from the outside. In order to sort a part based on its consumer IC type, CONSUMER CIRCUIT can be used. There should be a minimum supply voltage (Vsup) for this part, which should not be less than 4.5V volts. It can give voltage up to 3.318V volts. It represents the Sound Terminal™ series. As far as the supply current is concerned, it operates under the 60mA parameter. As long as the voltage gain remains at 48 dB, you should be fine. With the help of this device, IT ALSO OPERATES AT 3.3V DIGITAL SUPPLY can also be founded.
STA381BWSTR Features
With 48-VFQFN Exposed Pad channels
operate temperature at the range of 0°C~70°C TA
consumer IC type: CONSUMER CIRCUIT

STA381BWSTR Applications
There are a lot of STMicroelectronics
STA381BWSTR Audio Special Purpose applications.

High-End Audio/Sound Card for PC
Replacement of DIR1703
Other Applications Requiring S/PDIF Receiver
Audio Differential Line Drivers
Audio Mix Consoles
Distribution Amplifiers
Graphic and P arametric Equalizers
Dynamic Range Processors
Digital Effects Processors
Telecom Systems

Mounting Type	Surface Mount
Package / Case	48-VFQFN Exposed Pad
Surface Mount	YES
Number of Pins	48
Weight	139.989945mg
Operating Temperature	0°C~70°C TA
Packaging	Tape & Reel (TR)
Series	Sound Terminal™
JESD-609 Code	e3
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	48
Terminal Finish	Matte Tin (Sn) - annealed
Applications	Pre-Amplifier
Additional Feature	IT ALSO OPERATES AT 3.3V DIGITAL SUPPLY
Voltage - Supply	4.5V~25.5V
Terminal Position	QUAD
Peak Reflow Temperature (Cel)	260
Terminal Pitch	0.5mm
Time@Peak Reflow Temperature-Max (s)	40
Base Part Number	STA381
Function	Fully Integrated Processor
Power Supplies	3.318V
Supply Voltage-Min (Vsup)	4.5V
Number of Channels	2
Interface	I2C, I2S
Supply Current-Max	60mA
Output Power	20W
Specifications	Full Flexible Amplification
Gain	48 dB
Consumer IC Type	CONSUMER CIRCUIT
Signal to Noise Ratio (SNR)	100 dB
Length	7mm
Height Seated (Max)	1mm
Width	7mm
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free