AirPrime Module Datasheet

Audio Circuit
Rev 1 Apr.17 13 41110693
Pin Descriptions
Table 3-1: Pin Descriptions for the BC127/BC127-HD/BC127EXT
No Pin Name Pin Type Pin Description
1 GND GND Common Ground
2 GND GND Common Ground
3 GND GND Common Ground
4 GND GND Common Ground
5 PIO_6/
PCM2_SYNC
Bi-directional Programmable I/O (PCM2_SYNC or
I2S_S)
6 PIO_7/
PCM2_CLK
Bi-directional Programmable I/O (PCM2_CLK or
I2S_CLK)
7 CAP_SENSE_1 Analog Input Capacitive Touch Sense Input
8 CAP_SENSE_4 Analog Input Capacitive Touch Sense Input
9 CAP_SENSE_3 Analog Input Capacitive Touch Sense Input
10 CAP_SENSE_2 Analog Input Capacitive Touch Sense Input
11 GND GND Common Ground
12 AIO_1 Bi-directional Analog programmable input/output line
13 SPKR_LN Audio output Speaker output negative, left
14 SPKR_LP Audio output Speaker output positive, left
15 SPKR_RN Audio output Speaker output negative, right
16 SPKR_RP Audio output Speaker output positive, right
17 MIC_BIAS_A Analog Input Microphone bias
18 MIC_RN Analog Input Microphone input negative, right
19 MIC_RP Analog Input Microphone input positive, right
20 MIC_LN Analog Input Microphone input negative, left
21 MIC_LP Analog Input Microphone input positive, left
22 GND GND Common Ground
23 PIO_0 Bi-directional Programmable input/output line
24 PIO_1 Bi-directional Programmable input/output line
25 PIO_5/
PCM2_OUT
Bi-directional Programmable I/O (PCM2_OUT or
I2S_OUT)
26 PIO_4/
PCM2_IN
Bi-directional Programmable I/O (PCM2_IN or I2S_IN)
27 GND GND Common Ground