User's Manual

BM90SPKA5MG7
Version: 1.01 - 4 - 6/26/2014
Pin Definition
Pin No.
I/O Name Description
1 I/O P35
GPIO, default pull-high input
REW button
2 I EAN
Embedded ROM/External Flash enable
H: Embedded; L: External Flash
3 P P30
GPIO, default pull-high input
Line-in detection, 1: no line-in detected; 0: line-in detected
4 I/O P20
GPIO, default pull-high input
System Configuration, H: Application L: Baseband(IBDK
Mode)
5 I/O P00
GPIO, default pull-low input.
Audio AMP Enable
6 I/O P04
GPIO, default pull-high input
NFC
7 AO SPKR
R-channel analog headphone output, for cap-less and
single-ended application both
8 AP AOHPM
Headphone common mode output/sense input. Cap-less
application only.
9 AO SPKL
L-channel analog headphone output, for cap-less and
single-ended application both
10 AP VDDA
Reserve for external cap to fine tune audio frequency
response
11 AI MIC1_P Mic 1 mono differential analog positive input
12 AI MIC1_N Mic 1 mono differential analog negative input
13 AP MIC_BIAS Microphone biasing voltage
14 AI AIR Stereo analog line in, R-channel
15 AI AIL Stereo analog line in, L-channel
16 I/O RST_N System Reset Pin
17 I/O P34
GPIO, default pull-high input
NFC_SW
18 I/O P37
GPIO, default pull-high input
FWD button
19 P VDDIO
VDDIO pin, for calibration only
Do not add external power to this pin