WM8731SEDS/V Wolfson Microelectronics, WM8731SEDS/V Datasheet - Page 31

• Manufacturer Part Number: WM8731SEDS/V
• Description: Audio CODECs Stereo Codec with H/P
• Manufacturer: Wolfson Microelectronics

Specifications of WM8731SEDS/V

• Interface Type: Serial (2-Wire or 3-Wire), I2S
• Resolution: 24 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 2 ADC / 2 DAC
• Snr: 90 dB
• Thd Plus Noise: - 84 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8731 / WM8731L
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The software control is given in Table 9.
Table 9 Headphone Output Software Control
0000010
Left
Headphone
Out
0000011
Right
Headphone
Out
REGISTER
ADDRESS
6:0
7
8
6:0
7
8
BIT
LHPVOL[6:0]
LZCEN
LRHPBOTH
RHPVOL[6:0]
RZCEN
RLHPBOTH
LABEL
1111001
( 0dB )
0
0
1111001
( 0dB )
0
0
DEFAULT
Left Channel Headphone Output
Volume Control
1111111 = +6dB
. . 1dB steps down to
0110000 = -73dB
0000000 to 0101111 = MUTE
Left Channel Zero Cross detect
Enable
1 = Enable
0 = Disable
Volume, Mute and Zero Cross Data
Load Control
1 = Enable Simultaneous Load of
LHPVOL[6:0] and LZCEN to
RHPVOL[6:0] and RZCEN
0 = Disable Simultaneous Load
Right Channel Headphone Output
Volume Control
1111111 = +6dB
. . 1dB steps down to
0110000 = -73dB
0000000 to 0101111 = MUTE
Right Channel Zero Cross Detect
Enable
1 = Enable
0 = Disable
Volume, Mute and Zero Cross Data
Load Control
1 = Enable Simultaneous Load of
RHPVOL[6:0] and RZCEN to
LHPVOL[6:0] and LZCEN
0 = Disable Simultaneous Load
Left to Right Channel Headphone
Right to Left Channel Headphone
DESCRIPTION
PD, Rev 4.8, April 2009
Production Data
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