wm8952 Wolfson Microelectronics plc, wm8952 Datasheet - Page 63

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

Pre Production
w
48 (30h)
49 (31h)
50 (32h)
51 (33h)
52 (34h)
53 (35h)
54 (36h)
55 (37h)
56 (38h)
REGISTER
ADDRESS
8
7
6:4
3
2:0
15:0
15:2
1
0
15:0
15:0
15:0
15:0
15:9
15:0
15:8
BIT
PGABOOST
MICP2BOOSTVOL 000
AUX2BOOSTVOL 000
TSDEN
VROI
LABEL
1
0
0
0
0000h
000h
0
0000h
0000h
0000h
0000h
0079h
0000h
0000h
DEFAULT
Input Boost
0 = PGA output has +0dB gain through input BOOST
stage.
1 = PGA output has +20dB gain through input BOOST
stage.
Reserved
Controls the MICP pin to the input boost stage (NB,
when using this path set MICP2INPPGA=0):
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved
Controls the auxiliary amplifier to the input boost
stage:
000=Path disabled (disconnected)
001=-12dB gain through boost stage
010=-9dB gain through boost stage
…
111=+6dB gain through boost stage
Reserved
Reserved
Thermal Shutdown Enable
0 : thermal shutdown disabled
1 : thermal shutdown enabled
VREF (AVDD/2 or 1.5xAVDD/2) to analogue output
resistance
0: approx 1kΩ
1: approx 30 kΩ
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
DESCRIPTION
PP, Rev 3.0, December 2008
Input Signal Path
Input Signal Path
Input Signal Path
Output Switch
Analogue Outputs
REFER TO
WM8952
63