WM8941GEFL/RV Wolfson Microelectronics, WM8941GEFL/RV Datasheet - Page 20

• Manufacturer Part Number: WM8941GEFL/RV
• Description: Audio CODECs Mono CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8941GEFL/RV

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-28
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8941
w
Figure 6 Microphone Input PGA Circuit (switch positions shown are for differential mic
input)
Table 2 Input Control
R44
Input Control
REGISTER
ADDRESS
2
1
0
BIT
AUX2INPPGA
MICN2INPPGA
MICP2INPPGA
LABEL
0
1
0
DEFAULT
Select AUX amplifier output as input PGA
signal source.
0=AUX not connected to input PGA
1=AUX connected to input PGA amplifier
negative terminal.
Connect MICN to input PGA negative
terminal.
0=MICN not connected to input PGA
1=MICN connected to input PGA amplifier
negative terminal.
Connect input PGA amplifier positive
terminal to MICP or VMID.
0 = input PGA amplifier positive terminal
connected to VMID
1 = input PGA amplifier positive terminal
connected to MICP through variable resistor
string
DESCRIPTION
PP, Rev 3.3, December 2007
Pre Production
20