WM8983GEFLSLASHV datasheet(43/124 Pages) WOLFSON

Part #	WM8983GEFL/V

Description	Mobile Multimedia CODEC with 1W Speaker Driver

PDF	124 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

Logo

43 / 124 page

Production Data

WM8983

PD, Rev 4.3, May 2010

DIGITAL ADC VOLUME CONTROL

The output of the ADCs can be digitally attenuated over a range from –127dB to 0dB in 0.5dB steps.

The gain for a given eight-bit code X is given by:

0.5

× (G-255) dB for 1 ≤ G ≤ 255;

MUTE for G = 0

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R15

Left channel

ADC Digital

Volume

7:0

ADCLVOL

[7:0]

11111111

( 0dB )

Left ADC Digital Volume Control

0000 0000 = Digital Mute

0000 0001 = -127dB

0000 0010 = -126.5dB

… 0.5dB steps up to

1111 1111 = 0dB

ADCVU

Not

latched

ADC left and ADC right volume do not

update until a 1 is written to ADCVU (in

reg 15 or 16)

R16

Right channel

ADC Digital

Volume

7:0

ADCRVOL

[7:0]

11111111

( 0dB )

Right ADC Digital Volume Control

0000 0000 = Digital Mute

0000 0001 = -127dB

0000 0010 = -126.5dB

... 0.5dB steps up to

1111 1111 = 0dB

ADCVU

Not

latched

ADC left and ADC right volume do not

update until a 1 is written to ADCVU (in

reg 15 or 16)

Table 18 ADC Digital Volume Control

WM8983GEFL/V Datasheet(PDF) 43 Page - Wolfson Microelectronics plc

WM8983GEFL/V Datasheet(HTML) 43 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL