STA309A datasheet(63/67 Pages) STMICROELECTRONICS

部件名	STA309A

功能描述	Multi-channel digital audio processor with DDX

PDF	67 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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63 / 67 page

STA309A

Equalization and mixing

63/67

8.4

PSCorrect registers

ADC is used to input ripple data to SDI78. The left channel (7) is used internally. No audio

data can therefore be used on these channels. Though all channel mapping and mixing

from other inputs to channels 7 and 8 internally are still valid.

8.4.1

PSC1-2: ripple correction value (RCV) (0x51, 0x52)

Equivalent to negative maximum ripple peak as a percentage of Vcc (MPR), scaled by the

inverse of maximum ripple p-p as percentage of full-scale analog input to ADC.

Represented as a 1.11 signed fractional number.

8.4.2

PSC3: correction normalization value (CNV) (0x53)

Equivalent to 1 / (1+MPR) expressed as a 0.12 unsigned fractional number.

RCV11

RCV10

RCV9

RCV8

RCV7

RCV6

RCV5

RCV4

RCV3

RCV2

RCV1

RCV0

CNV11

CNV10

CNV9

CNV8

CNV7

CNV6

CNV5

CNV4

CNV3

CNV2

CNV1

CNV0

STA309A 数据表(PDF) 63 Page - STMicroelectronics

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