STA382BW datasheet(36/172 Pages) STMICROELECTRONICS

tên linh kiện	STA382BW

Giải thích chi tiết về linh kiện	Sound Terminal® 2.1-channel high-efficiency digital audio system

PDF	172 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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36 / 172 page

Device overview

STA382BW

36/172

Doc ID 022783 Rev 1

Figure 13.

Stereo link block diagram

4.3.9

Programming of coefficients

The coefficients are expressed in different value ranges and in decimal notation (refer to the

previous paragraphs). In order to be programmed they must be converted into a [-1, +1)

range and in hexadecimal notation (Table 11). This can be achieved with the following

procedure:

●

if CoeffDecValue>0

●

if CoeffDecValue<0

where CoeffI2CValue is the final decimal value to be converted into hexadecimal notation

while CoeffDecValue is the coefficient value (in decimal notation) to start from.

Output

Ch 0

Attenuator

From mapper

Ch 0 – Band 0

Attenuator

From mapper

Ch 0 – Band 1

Attenuator

Ch 0 – Band 1

Ch 0 – Band 0

Output

Ch 1

Attenuator

From mapper

Ch 1 – Band 0

Attenuator

From mapper

Ch 1 – Band 1

Attenuator

Ch 1 – Band 1

Ch 1 – Band 0

Max

Attenuation

Band 0

Max

Attenuation

Band 1

CoeffI2CValue

rnd CoeffDecValue 2

⁄

() 2

()

CoeffI2CValue

rnd CoeffDecValue 2

⁄

() 2

()

–

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