WM8971L_05 Datasheet, PDF (48/61 Pages) Wolfson Microelectronics plc – Stereo CODEC for Portable Audio Applications

WM8971L
Production Data
REGISTER BIT
ADDRESS
LABEL DEFAULT
DESCRIPTION
R25 (19h)
8:7 VMIDSEL 00
Vmid divider enable and select
Power
Management
(1)
00 – Vmid disabled (for OFF mode)
01 – 50kΩ divider enabled (for
playback/record)
10 – 500kΩ divider enabled (for low-power
standby)
11 – 5kΩ divider enabled (for fast start-up)
6
VREF
0
VREF (necessary for all other functions)
Power down = 0
Power up = 1
5
AINL
0
Analogue in PGA Left
Power down = 0
Power up = 1
4
AINR
0
Analogue in PGA Right
Power down = 0
Power up = 1
3
ADCL
0
ADC Left
Power down = 0
Power up = 1
2
ADCR
0
ADC Right
Power down = 0
Power up = 1
1
MICB
0
MICBIAS
Power down = 0
Power up = 1
R26 (1Ah)
8
DACL
0
DAC Left
Power
Management
(2)
7
DACR
0
Power down = 0
Power up = 1
DAC Right
Power down = 0
Power up = 1
6
LOUT1
0
LOUT1 Output Buffer*
Power down = 0
Power up = 1
5
ROUT1
0
ROUT1 Output Buffer*
Power down = 0
Power up = 1
4
LOUT2
0
LOUT2 Output Buffer*
Power down = 0
Power up = 1
3
ROUT2
0
ROUT2 Output Buffer*
Power down = 0
Power up = 1
2
MONO
0
MONOOUT Output Buffer and Mono Mixer
Power down = 0
Power up = 1
* The left mixer is enabled when LOUT1=1 or LOUT2=1. The right mixer is enabled when
ROUT1=1 or ROUT2=1.
Table 39 Power Management
w
PD Rev 4.1 August 2005
48