Data Sheet

FSC-BT956B Datasheet
Shenzhen Feasycom Technology Co., Ltd www.feasycom.com
-9-
Alternative Function: I2S DATA IN
Alternative Function: ADC Keysense.
8,31
PIO8/I2S_LRCK/AIO0/SD_
D0
A,I/O
Programmable input/output line
Alternative Function: I2S_LRCK.
Alternative Function: Analogue programmable I/O line.
Alternative Function: SD_DATA
Note 1
11
RESET
I
External reset input: Active LOW.
Set this pin low reset to initial state
12
VDD_3V3
Vdd
Power supply voltage 3.3V
13
GND
Vss
Power Ground
14
V_CHARGER
PWR
Charger power supply (5V)
Note 11
15
HOST_TX/MICA_N/PIO0
A,I/O
Programmable input/output line
Alternative Function: MIC_AN
Alternative Function: Debugging through the TX line
Alternative Function: PDM2 data
Note
1,6,13
16
HOST_RX/MICA_P/PIO1
A,I/O
Programmable input/output line
Alternative Function: MIC_AP
Alternative Function: Debugging through the RX line
Alternative Function: PDM2 clock
Note
1,6,13
17
MICB_N/PIO2
A,I/O
Programmable input/output line
Alternative Function: MIC_BN.
Alternative Function: PDM1 data
Note 1,
13
18
MICB_P/PIO3
A,I/O
Programmable input/output line
Alternative Function: I2S MCLK.
Alternative Function: MIC_BP.
Alternative Function: PDM1 clock
Note 1,
13
19
SPK_LP
A,O
DAC right output positive
20
SPK_RP
A,O
DAC left output positive
21
GND
Vss
Power Ground
22
GND
Vss
Power Ground
23
MIC_BIAS
O
Microphone bias voltage
24
VDD_IO
PWR,
O
Power of digital IO
(For power supply to the SD card)
Note 7
25
LED_CHG
O
LED output for charger
Note 10
26
NC
30,33
PIO7
I/O
Programmable input/output line
Alternative Function: BT Status(Default)
Connected: High ; Not connected: low
Note
1,8
32
PIO9/LED/PWM0
I/O
Programmable input/output line
Alternative Function: LED(Default)
Alternative Function: PWM.
Note 9
35
GND
Vss
Power Ground
36
EXT_ANT
O
RF signal output .
Note 12