WM8978CGEFLSLASHV datasheet(98/118 Pages) WOLFSON

номер детали	WM8978CGEFL/V

подробное описание детали	Stereo CODEC with Speaker Driver

PDF	118 Pages

Scroll/Zoom	100%

производитель	WOLFSON [Wolfson Microelectronics plc]

домашняя страница	http://www.wolfsonmicro.com

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98 / 118 page

WM8978

Production Data

PD, Rev 4.5, October 2011

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

4:0

EQ5G

01100

EQ Band 5 Gain Control. See Table 36 for

details.

Output Signal

Path

24 (18h)

LIMEN

Enable the DAC digital limiter:

0=disabled

1=enabled

Output Signal

Path

7:4

LIMDCY

0011

DAC Limiter Decay time (per 6dB gain change)

for 44.1kHz sampling. Note that these will scale

with sample rate:

0000=750us

0001=1.5ms

0010=3ms

0011=6ms

0100=12ms

0101=24ms

0110=48ms

0111=96ms

1000=192ms

1001=384ms

1010=768ms

Output Signal

Path

3:0

LIMATK

0010

DAC Limiter Attack time (per 6dB gain change)

for 44.1kHz sampling. Note that these will scale

with sample rate.

0000=94us

0001=188s

0010=375us

0011=750us

0100=1.5ms

0101=3ms

0110=6ms

0111=12ms

1000=24ms

1001=48ms

1010=96ms

1011 to 1111=192ms

Output Signal

Path

25 (19h)

8:7

Reserved

6:4

LIMLVL

000

Programmable signal threshold level

(determines level at which the DAC limiter starts

to operate)

000=-1dB

001=-2dB

010=-3dB

011=-4dB

100=-5dB

101 to 111=-6dB

Output Signal

Path

3:0

LIMBOOST

0000

DAC Limiter volume boost (can be used as a

stand alone volume boost when LIMEN=0):

0000=0dB

0001=+1dB

0010=+2dB

… (1dB steps)

1011=+11dB

1100=+12dB

1101 to 1111=reserved

Output Signal

Path

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