WM8985GEFL Wolfson Microelectronics, WM8985GEFL Datasheet - Page 62

• Manufacturer Part Number: WM8985GEFL
• Description: Audio CODECs Multimedia CODEC with Class D HP
• Manufacturer: Wolfson Microelectronics

Specifications of WM8985GEFL

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8985
3D STEREO ENHANCEMENT
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Table 30 EQ Band 5 Control
Table 31 Gain Register Table
See also Figure 47 to Figure 64 for equaliser and high pass filter responses.
The WM8985 has a digital 3D enhancement option to increase the perceived separation between the
left and right channels. Selection of 3D for record or playback is controlled by register bit
EQ3DMODE. Switching this bit from record to playback or from playback to record may only be done
when both ADCs and both DACs are disabled.
The DEPTH3D setting controls the degree of stereo expansion.
To enable the 3D Stereo Enhancement in the ADC path the device must be in 128fs mode by setting
M128ENB to 1 in register R7 bit 8. Refer to the Low Power section under Power Management below
for more details.
R22 (16h)
EQ Band 5
Gain Control
REGISTER
ADDRESS
GAIN REGISTER
11001 to 11111
…. (1dB steps)
00000
00001
00010
01100
01101
11000
4:0
6:5
BIT
EQ5G
EQ5C
LABEL
Reserved
01100
(0dB)
01
+12dB
+11dB
+10dB
-12dB
GAIN
-1dB
DEFAULT
0dB
Band 5 Gain Control. See Table 31 for
details.
Band 5 Cut-off Frequency:
00 = 5.3kHz
01 = 6.9kHz
10 = 9kHz
11 = 11.7kHz
DESCRIPTION
PD, Rev 4.6, July 2009
Production Data
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