WM8974GEFL/V Wolfson Microelectronics, WM8974GEFL/V Datasheet - Page 41

• 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

Production Data
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Table 33 EQ Band 4 Control
Table 34 EQ Band 5 Control
Table 35 Gain Register Table
R21
EQ Band 4
Control
R22
EQ Band 5
Gain Control
00000
00001
00010
…. (1dB steps)
01100
01101
11000
11001 to 11111
REGISTER
REGISTER
ADDRESS
ADDRESS
GAIN REGISTER
4:0
6:5
8
4:0
6:5
BIT
BIT
EQ4G
EQ4C
EQ4BW
EQ5G
EQ5C
+12dB
+11dB
+10dB
0dB
-1dB
-12dB
Reserved
LABEL
LABEL
01100
(0dB)
01
0
01100
(0dB)
01
GAIN
DEFAULT
DEFAULT
Band 4 Gain Control. See Table 35 for details
Band 4 Centre Frequency:
00=1.8kHz
01=2.4kHz
10=3.2kHz
11=4.1kHz
Band 4 Bandwidth Control
0=narrow bandwidth
1=wide bandwidth
Band 5 Gain Control. See Table 35 for details.
Band 5 Cut-off Frequency:
00=5.3kHz
01=6.9kHz
10=9kHz
11=11.7kHz
PD, Rev 4.5, September 2008
DESCRIPTION
DESCRIPTION
WM8974
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