WM8900LGEFK/RV Wolfson Microelectronics, WM8900LGEFK/RV Datasheet - Page 105

• Manufacturer Part Number: WM8900LGEFK/RV
• Description: Audio CODECs Ultra Low Power Hi-Fi CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8900LGEFK/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
Table 74 Register Map Summary
w
R53 (35h)
Left OUT2 Control
R54 (36h)
Right OUT2 Control
R58 (3Ah)
Headphone Control 1
R115 (R73h)
Output Bias Control
R116 (R74h)
Master Bias Control
Master Bias Control
REGISTER ADDRESS
5:0
5:0
8:7
2:1
8:7
BIT
8
7
6
8
7
6
7
6
5
4
3
2
OUT2_VU
OUT2L_ZC
OUT2L_MUTE
OUT2L_VOL
[5:0]
OUT2_VU
OUT2R_ZC
OUT2R_MUTE
OUT2R_VOL
[5:0]
HP_IPSTAGE_ENA
HP_OPSTAGE_ENA
HP_CLAMP_IP
HP_CLAMP_OP
HP_SHORT
HP_SHORT2
MIXOUT_BIAS
DAC_BIAS
MASTER_BIAS
LABEL
DEFAULT
111001
111001
00
00
10
0
0
1
0
0
1
0
0
0
0
0
0
Left Channel LINEOUT2 Volume Update
Writing a 1 to this bit will cause left and
right LINEOUT2 volume to be updated
simultaneously
Left Channel LINEOUT2 Zero Cross enable
0 = Change gain immediately
1 = Change gain on zero cross only
Left Channel LINEOUT2 Mute
0 = LINEOUT_1L Unmuted
1 = LINEOUT_1L Mute
Left Channel LINEOUT2 Volume Control
(-57dB -> +6dB in 1dB steps)
111111 = +6dB
000000 = -57dB
Right Channel LINEOUT2 Volume Update
Writing a 1 to this bit will cause left and
right LINEOUT2 volume to be updated
simultaneously
Right Channel LINEOUT2 Zero Cross
enable
0 = Change gain immediately
1 = Change gain on zero cross only
Right Channel LINEOUT2 Mute
0 = LINEOUT_1R Unmuted
1 = LINEOUT_1R Mute
Right Channel LINEOUT2 Volume Control
(-57dB -> +6dB in 1dB steps)
111111 = +6dB
000000 = -57dB
Headphone input stage Enable
0 = Headphone input stage disabled
1 = Headphone input stage enabled
Headphone output stage Enable
0 = Headphone output stage disabled
1 = Headphone output stage enabled
Clamps HP_INL and HP_INR to GND
Clamps HP_L and HP_R outputs to GND
Shorts the inputs to the outputs
Shorts the feedback resistor.
0 = Normal operation
1 = Shorts feedback resistor.
About 20dB ‘mute’ attenuation
Adjusts output mixer bias
00 = Full bias
01 = Half bias (recommended)
10 = Reserved
11 = Reserved
Adjusts DAC bias
00 = Full bias
01 = Half bias (recommended)
10 = Reserved
11 = Reserved
Adjusts master bias
00 = Reserved
01 = 0.75 bias
10 = full bias - default
11 = Reserved
DESCRIPTION
PD, August 2008, Rev 4.0
WM8900
105