WM8986GECO/V Wolfson Microelectronics, WM8986GECO/V Datasheet - Page 36

• Manufacturer Part Number: WM8986GECO/V
• Description: Audio Amplifiers Class D Headphone DAC + Line Out
• Manufacturer: Wolfson Microelectronics

Specifications of WM8986GECO/V

• Product: Class-D
• Output Power: 40 mW
• Thd Plus Noise: - 86 dB
• Operating Supply Voltage: 1.71 V to 3.6 V, 2.5 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 16 Ohms
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Differential
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.71 V, 2.5 V
• Output Type: Differential
• Package / Case: QFN-28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8986
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Table 17 EQ Band 3 Control
Table 18 EQ Band 4 Control
Table 19 EQ Band 5 Control
Table 20 Gain Register Table
See also Figure 40 to Figure 53 for equaliser and high pass filter responses.
R20 (14h)
EQ Band 3
Control
R21 (15h)
EQ Band 4
Control
R22 (16h)
EQ Band 5
Gain Control
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
GAIN REGISTER
11001 to 11111
…. (1dB steps)
00000
00001
00010
01100
01101
11000
4:0
6:5
8
4:0
6:5
8
4:0
6:5
BIT
BIT
BIT
EQ3G
EQ3C
EQ3BW
EQ4G
EQ4C
EQ4BW
EQ5G
EQ5C
LABEL
LABEL
LABEL
Reserved
01100
(0dB)
01
0
01100
(0dB)
01
0
01100
(0dB)
01
+12dB
+11dB
+10dB
-12dB
GAIN
-1dB
DEFAULT
DEFAULT
DEFAULT
0dB
Band 3 Gain Control. See Table 20 for
details.
Band 3 Centre Frequency:
00 = 650Hz
01 = 850Hz
10 = 1.1kHz
11 = 1.4kHz
Band 3 Bandwidth Control
0 = narrow bandwidth
1 = wide bandwidth
Band 4 Gain Control. See Table 20 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 20 for
details.
Band 5 Cut-off Frequency:
00 = 5.3kHz
01 = 6.9kHz
10 = 9kHz
11 = 11.7kHz
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD, Rev 4.1, June 2009
Production Data
36