TABLE 1. Pin Name and Function
Bump Number
Pin Name
MIC BIAS
MIC2+
MIC2–
MIC1+
MIC1–
MODE0
MODE1
GA0
Pin Function
Microphone Bias
Pin Type
Analog Output
Analog Input
Analog Input
Analog Input
Analog Input
Digital Input
Digital Input
Digital Input
Digital Input
Ground
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
C1
C2
C3
C4
C5
D1
D2
D3
D4
D5
E1
E2
E3
E4
E5
Microphone 2 positive input
Microphone 2 negative input
Microphone 1 positive input
Microphone 1 negative input
Mic mode select pin
Mic mode select pin
Pre-Amplifier Gain select pin
Pre-Amplifier Gain select pin
Ground
GA1
GND
MUTE2
GB0
Mute select pin
Digital Input
Digital Input
Post-Amplifier Gain select pin
No Connect
NC
GA2
Pre-Amplifier Gain select pin
Reference voltage de-coupling
Mute select pin
Digital Input
Analog Ref
Digital Input
Digital Input
Digital Input
Digital Input
Supply
REF
MUTE1
GB1
Post-Amp Gain select pin
Post-Amp Gain select pin
Pre-Amp Gain select pin
Power Supply
GB2
GA3
VDD
LPF+
OUT+
OUT-
LPF-
Low pass Filter for positive output
Positive optimized audio output
Negative optimized audio output
Low pass Filter for negative output
Chip enable
Analog Input
Analog Output
Analog Output
Analog Input
Digital Input
SD
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