wm8952 Wolfson Microelectronics plc, wm8952 Datasheet - Page 59

• Manufacturer Part Number: wm8952
• Description: Mono Adc With Microphone Pre-amplifier
• Manufacturer: Wolfson Microelectronics plc

Pre Production
w
9 (09h)
10 (0Ah)
11 (0Bh)
12 (0Ch)
13 (0Dh)
14 (0Eh)
15 (0Fh)
16 (10h)
17 (11h)
18 (12h)
REGISTER
ADDRESS
2:0
15:2
1
0
15:0
15:0
15:0
15:0
15:9
8
7
6:4
3:1
0
15:8
7:0
15
14
13:0
15
14
13:0
15
BIT
GPIOSEL
AUTOINC
HPFEN
HPFAPP
HPFCUT
ADCPOL
ADCVOL
NF0_UP
NF0_EN
NF0_A0
NF0_UP
NF0_A1
NF1_UP
LABEL
1
1
0
000
11111111
0
000
0
0000h
00FFh
00h
00
0
00h
0
0000h
0
0
0000h
0
DEFAULT
GPIO function select:
000=GPIO off
010=Temp ok
100=SYSCLK clock o/p
101=PLL lock
All other values: Reserved
Reserved
Auto-Incremental write enable
0=Auto-Incremental writes disabled
1=Auto-Incremental writes enabled
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
High Pass Filter Enable
0=disabled
1=enabled
Select audio mode or application mode
0=Audio mode (1
1=Application mode (2
Application mode cut-off frequency
See Table 14 for details.
Reserved
ADC Polarity
0=normal
1=inverted
Reserved
ADC Digital Volume Control
0000 0000 = Digital Mute
0000 0001 = -127dB
0000 0010 = -126.5dB
... 0.5dB steps up to
1111 1111 = 0dB
Notch filter 0 update. The notch filter 0 values used
internally only update when one of the NF0_UP bits is
set high.
Notch filter 0 enable:
0=Disabled
1=Enabled
Notch Filter 0 a0 coefficient
Notch filter 0 update. The notch filter 0 values used
internally only update when one of the NF0_UP bits is
set high.
Reserved
Notch Filter 0 a1 coefficient
Notch filter 1 update. The notch filter 1 values used
internally only update when one of the NFU bits is set
high.
st
order, fc = ~3.7Hz)
DESCRIPTION
nd
order, fc = HPFCUT)
PP, Rev 3.0, December 2008
General Purpose
Input Output
Control Interface
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
Analogue to
Digital Converter
(ADC)
REFER TO
WM8952
59