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SPI_MOSI
VRE_IN
VDD_BAT
GND
VDD_CHG
LED1
LED0
GND
SPK_L_N
SPK_L_P
SPK_R_N
SPK_R_P
GND_S
MIC_BIAS
MIC_B_P
MIC_B_N
MIC_A_P
MIC_A_N
GND
PIO0
PIO1
PIO2
PIO3
GND
RF
2.3 Package Dimensions
36
SPI data intput
Take high to enable high-voltage linear regulator
37
and switch-mode regulator
Lithium ion/polymer battery positive terminal.
38
Battery charger output and input to switch-mode
regulator
39
Ground
40
Battery charge
41
LED Driver
42
43
Ground
44
Speaker output negative, left
45
Speaker output positive, left
46
Speaker output negative, right
47
Speaker output positive, right
48
Signal Ground
49
Microphone bias
50
Microphone input positive, right
51
Microphone input negative, right
52
Microphone input positive, left
53
Microphone input negative, left
54
Ground
55
56
Programmable input/output line
57
58
59
Ground
60
Transmitter output/switched receiver input
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