WM8974GEFL/V Wolfson Microelectronics, WM8974GEFL/V Datasheet - Page 71

Audio CODECs Mono Codec with Spkr

WM8974GEFL/V

Manufacturer Part Number
WM8974GEFL/V
Description
Audio CODECs Mono Codec with Spkr
Manufacturer
Wolfson Microelectronics
Datasheet

Specifications of WM8974GEFL/V

Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QFN-24
Minimum Operating Temperature
- 25 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Production Data
w
24 (18h)
25 (19h)
REGISTER
ADDRESS
6:5
4:0
8
7:4
3:0
8:7
6:4
BIT
EQ5C
EQ5G
LIMEN
LIMDCY
LIMATK
LIMLVL
LABEL
01
0
0011
01100
0010
00
000
DEFAULT
Band 5 Cut-off Frequency:
00=5.3kHz
01=6.9kHz
10=9kHz
11=11.7kHz
Band 5 Gain Control. See Table 35 for details.
Enable the DAC digital limiter:
0=disabled
1=enabled
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
1011 to 1111=1.536s
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
Reserved
DAC Limiter Programmable signal threshold level
(determines level at which the limiter starts to operate)
000=-1dB
001=-2dB
010=-3dB
011=-4dB
100=-5dB
101 to 111=-6dB
DESCRIPTION
PD, Rev 4.5, September 2008
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
REFER TO
WM8974
71

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