WM8962 Datasheet, PDF (209/295 Pages) Wolfson Microelectronics plc – Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers

WM8962
REGISTER BITS BY ADDRESS
REGISTER BIT
ADDRESS
LABEL
DEFAULT
DESCRIPTION
R0 (00h) Left 8
Input volume
IN_VU
0
Input PGA Volume and Mute Update
Writing a 1 to this bit will cause the INL and INR volume
and mute settings to be updated simultaneously
7 INPGAL_MUTE
1
Left input PGA Mute
0 = Unmuted
1 = Muted
6
INL_ZC
0
INL PGA Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
5:0 INL_VOL [5:0] 01_1111 Left input PGA Volume
-23.25dB to +24.00dB in 0.75dB steps.
Register 00h Left Input volume
REGISTER
ADDRESS
R1 (01h)
Right Input
volume
BIT
LABEL
DEFAULT
DESCRIPTION
15:12 CUST_ID [3:0]
11:9 CHIP_REV [2:0]
8
IN_VU
7 INPGAR_MUTE
6
INR_ZC
5:0 INR_VOL [5:0]
0000
011
0
1
0
01_1111
Reading from this register will indicate the Customer ID.
Reading from this register will indicate the Chip Revision ID.
000 = Rev A
001 = Rev B
010 = Rev C
011 = Rev D
Input PGA Volume and Mute Update
Writing a 1 to this bit will cause the INL and INR volume
and mute settings to be updated simultaneously
Right input PGA Mute
0 = Unmuted
1 = Muted
INR PGA Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
Right input PGA Volume
-23.25dB to +24.00dB in 0.75dB steps.
Register 01h Right Input volume
REGISTER BIT
ADDRESS
LABEL
DEFAULT
DESCRIPTION
R2 (02h)
8
HPOUT_VU
HPOUTL
volume
0
Headphone Output PGA Volume and Mute Update.
Writing 1 to this bit will cause the HPOUTL and HPOUTR
volume and mute settings to be updated simultaneously.
7
HPOUTL_ZC
0
HPOUTL_VOL (Left Headphone Output PGA) Zero Cross
Enable
0 = Zero cross disabled
1 = Zero cross enabled
6:0 HPOUTL_VOL 000_0000 Left Headphone Output PGA Volume
[6:0]
000_0000 to 010_1111 = Mute
011_0000 to 011_0101 = -68dB
011_0110 = -67dB
…in 1dB steps
111_1001 = 0dB
…
111_1111 = +6dB
Register 02h HPOUTL volume
Rev 4.3
209