Detailed Audio Amplifier Section Diagram with On-Page PDF View

The KDL-55BX520 audio amplifier circuit PDF preview STA696BWS IC to channel provides 40 watts of high-efficiency digital output. This article will include the application block diagram and schematic diagram. The rest of the sections of this Sony LED TV will also be published. This is part of our IC and circuit diagram series. Sony LED TV Repair Center Lahore will continue to write research-based articles for you so that you, my fellow technician, can work easier and do your job better.

STA696BWS – Application

The application view of this IC can be seen in the image below to see how it works. Scroll down to see the full schematic diagram in the PDF viewport. 

Serial audio interface

The STA369BWS audio serial input interface was designed to interface with standard digital

audio components and to accept a number of serial data formats. The STA369BWS always

acts as the slave when receiving audio input from standard digital audio components. Serial

Data for two channels is provided using three inputs: left/right clock LRCKI, serial clock

BICKI, and serial data SDI12. 

The SAI bit and the SAIFB bit are used to specify the serial data format. The default serial

The data format is I2S, MSB-first.

I2C bus specification

The STA369BWS supports the I2C protocol via the input ports SCL and SDA_IN (master to 

slave) and the output port SDA_OUT (slave to master). This protocol defines any device 

that sends data on to the bus as a transmitter and any device that reads the data as a 

receiver. The device that controls the data transfer is known as the master, and the other as 

the slave. The master always starts the transfer and provides the serial clock for 

synchronization. The STA369BWS is always a slave device in all of its communications. It 

supports up to 400 kb/s (fast-mode bit rate).

For correct operation of the I2C interface, ensure that the master clock generated by the PLL 

has a frequency at least 10 times higher than the frequency of the applied SCL clock.

Communication protocol

Data transition or change

Data changes on the SDA line must only occur when the clock SCL is low. An SDA transition 

while the clock is high is used to identify a START or STOP condition.

Start condition

START is identified by a high-to-low transition of the data bus, SDA, while the clock, SCL, is 

stable in the high state. A START condition must precede any command for data transfer.

Stop condition

STOP is identified by the low-to-high transition of SDA while SCL is stable in the high state. A 

The STOP condition terminates communication between STA369BWS and the bus master.

Data input

During the data input, the STA369BWS samples the SDA signal on the rising edge of SCL. 

For correct device operation the SDA signal must be stable during the rising edge of the 

clock, and the data can change only when the SCL line is low.

Device addressing

To start communication between the master and the STA369BWS, the master must initiate 

with a start condition. Following this, the master sends onto the SDA line 8 bits (MSB first). 

corresponding to the device select address and read or write mode bit.

The seven most significant bits are the device address identifiers, corresponding to the I2C 

bus definition. In the STA369BWS, the I2C interface has two device addresses depending on 

the SA pin configuration, 0x38 when SA = 0, and 0x3A when SA = 1.

The eighth bit (LSB) identifies a read or write operation (R/W); this is set to 1 for read and to 

0 for write. After a START condition, the STA369BWS identifies the device address on the 

SDA bus, and if a match is found, acknowledges the identification during the 9th bit time 

frame. The byte following the device identification is the address of a device register.

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Conclusion

Kdl-55bx520 audio amplifier circuit PDF preview presented to you in the form of a high-definition PDF. In this article you can see the complete circuit by double-tapping this preview file in mobile view. Zoomed in, in this view, on desktop view, you will see this view even more clearly. The download link for this PDF is also attached; you can also download it. Sony LED TV Repair Center Lahore Circuit diagram COF data Will continue to publish articles containing fault-finding articles and detailed blinking error codes for its readers. 

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