MICROCHIP TECHNOLOGY INC. BM23SPKXYC2A 사용자 설명서
Stereo Module
2015 Microchip Technology Inc.
Page 6
Preliminary Edition
Pin No.
Pin type
Name
Description
9
O
SPKL
L-channel analog headphone output
10
P
VDDA
Positive power supply/reference voltage for CODEC, no need to add power
to this pin.
to this pin.
11
I
MIC1_P
Mic 1 mono differential analog positive input
12
I
MIC1_N
Mic 1 mono differential analog negative input
13
P
MIC_BIAS
Electric microphone biasing voltage
14
I
AIR
R-channel single-ended analog inputs
15
I
AIL
L-channel single-ended analog inputs
16
I
RST
System Reset Pin, Low: reset
17
P
VCC_RF
1.28V RF LDO output, no need to add power to this pin.
18
I/O
P0_1
IO pin, default pull-high input (Note 1)
1. FWD key when class 2 RF (default), active low.
2. Class1 TX Control signal of external RF T/R switch, active high.
1. FWD key when class 2 RF (default), active low.
2. Class1 TX Control signal of external RF T/R switch, active high.
19
P
VDD_IO
Power output , no need to add power to this pin
20
P
ADAP_IN
5V Power adaptor input
21
P
BAT_IN
3.3V~4.2V Li-Ion battery input
22
-
NC
No Connection
23
P
GND
Ground Pin
24
P
SYS_PWR
System Power Output
BAT mode: 3.3~4.2V
Adapter mode: 4.0V
BAT mode: 3.3~4.2V
Adapter mode: 4.0V
25
P
BK_OUT
1.8V buck output, no need to add power to this pin
26
I
MFB
1. Power key when in off mode
2. UART_RX_IND: MCU use to wakeup BT (Note 1)
2. UART_RX_IND: MCU use to wakeup BT (Note 1)
27
I
LED1
LED Driver 1
28
I
LED2
LED Driver 2
29
I
P2_4
IO pin, default pull-high input
System Configuration,
L: Boot Mode with P2_0 low combination
System Configuration,
L: Boot Mode with P2_0 low combination
30
I
P0_2
IO pin, default pull-high input (Note 1)
Play/Pause key (default), active low.
Play/Pause key (default), active low.
31
I/O
P0_3
IO pin, default pull-high input (Note 1)
1. REV key (default), active low.
2. Buzzer Signal Output
3. Out_Ind_1
4. Class1 RX Control signal of external RF T/R switch, active high.
1. REV key (default), active low.
2. Buzzer Signal Output
3. Out_Ind_1
4. Class1 RX Control signal of external RF T/R switch, active high.
32
O
HCI_TXD
HCI-UART TX data
33
I
HCI_RXD
HCI-UART RX data
34
I
P0_5
IO pin, default pull-high input (Note 1)
Volume down (default), active low.
Volume down (default), active low.
35
I
P2_7
IO pin, default pull-high input (Note 1)
Volume up key (default), active low.
Volume up key (default), active low.