WM8510GEDSSLASHRV datasheet(29/81 Pages) WOLFSON

부품명	WM8510GEDS/RV

상세설명	Mono CODEC with Speaker Driver

PDF	81 Pages

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제조업체	WOLFSON [Wolfson Microelectronics plc]

홈페이지	http://www.wolfsonmicro.com

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Pre-Production

WM8510

PD Rev 4.1 December 2006

MINIMUM AND MAXIMUM GAIN

The ALCMIN and ALCMAX register bits set the minimum/maximum gain value that the PGA can be

set to whilst under the control of the ALC. This has no effect on the PGA when ALC is not enabled.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

5:3

ALCMAX

111

Set Maximum Gain of PGA

R32

ALC Control

2:0

ALCMIN

000

Set minimum gain of PGA

Table 17 ALC Max/Min Gain

In normal mode, ALCMAX sets the maximum boost which can be applied to the signal. In limiter

mode, ALCMAX will normally have no effect (assuming the starting gain value is less than the

maximum gain specified by ALCMAX) because the maximum gain is set at the starting gain level.

ALCMIN sets the minimum gain value which can be applied to the signal.

Table 18 ALC Max Gain Values

ALCMAX

Maximum Gain (dB)

111

35.25

110

29.25

101

23.25

100

17.25

011

11.25

010

5.25

001

-0.75

000

-6.75

Figure 13 ALC Min/Max Gain

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