WM8971L Wolfson Microelectronics Ltd., WM8971L Datasheet - Page 48

• Manufacturer Part Number: WM8971L
• Description: Stereo Codec for Portable Audio Applications
• Manufacturer: Wolfson Microelectronics Ltd.

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