WM8974GEFL/V Wolfson Microelectronics, WM8974GEFL/V Datasheet - Page 70

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

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

WM8974
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15 (0Fh)
16 (10h)
17 (11h)
18 (12h)
19 (13h)
20 (14h)
21 (15h)
22 (16h)
REGISTER
ADDRESS
0
8
7:0
8:0
8:0
8
7
6:5
4:0
8
7
6:5
4:0
8
7
6:5
4:0
8
7
6:5
4:0
8:7
BIT
ADCPOL
ADCVOL
EQMODE
EQ1C
EQ1G
EQ2BW
EQ2C
EQ2G
EQ3BW
EQ3C
EQ3G
EQ4BW
EQ4C
EQ4G
LABEL
0
11111111
1
01
01
01
01
0
0
01100
0
0
01100
0
0
01100
0
0
01100
00
DEFAULT
ADC Polarity
0=normal
1=inverted
Reserved
ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
Reserved
Reserved
0 = Equaliser applied to ADC path
1 = Equaliser applied to DAC path
Reserved
EQ Band 1 Cut-off Frequency:
00=80Hz
01=105Hz
10=135Hz
11=175Hz
EQ Band 1 Gain Control. See Table 35 for details.
Band 2 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
Band 2 Centre Frequency:
00=230Hz
01=300Hz
10=385Hz
11=500Hz
Band 2 Gain Control. See Table 35 for details.
Band 3 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
Band 3 Centre Frequency:
00=650Hz
01=850Hz
10=1.1kHz
11=1.4kHz
Band 3 Gain Control. See Table 35 for details.
Band 4 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Reserved
Band 4 Centre Frequency:
00=1.8kHz
01=2.4kHz
10=3.2kHz
11=4.1kHz
Band 4 Gain Control. See Table 35 for details.
Reserved
DESCRIPTION
PD, Rev 4.5, September 2008
Analogue to Digital
Converter (ADC)
Analogue to Digital
Converter (ADC)
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Output Signal Path
Production Data
REFER TO
70