Data Sheet

FSC-BT958 Datasheet
Shenzhen Feasycom Technology Co., Ltd www.feasycom.com
-8-
48
SPK_LN
O
Speaker output negative, left
49
SPK_LP
O
Speaker output positive, left
50
GND
Vss
Power Ground
51
EXT_ANT
RF
Bluetooth 50Ω transmitter output /receiver input
52
GND
Vss
Power Ground
4. PHYSICAL INTERFACE
4.1 Power Supply
The transient response of the regulator is important. If the power rails of the module are supplied from an external
voltage source, the transient response of any regulator used should be 20μs or less. It is essential that the power rail
recovers quickly.
4.2 Audio Interfaces
4.2.1 Microphone Input & line IN
Check the Application Schematic for the microphone input & line IN design.
If need to use Microphone & Line IN simultaneously, please refer to the Analog Characteristics introduction.
4.2.2 SPEAKER
Check the Application Schematic for the microphone input & line IN design.
Please refer to the Analog Characteristics introduction.
4.3 Reset
The module may be reset from several sources: Power-on Reset (POR), Low level on the nRESET Pin (nRST), Debug
Reset, Watchdog time-out reset (WDT), Global soft reset.
4.4 RF Interface
Fully integrated RF synthesizer without any external component
TX output power of +10dBm
High power output(10dBm) Class2 and Class3 transmission supported
Supports GFSK,π/4 DQPSK and 8DPSK modulation
High performance in receiver sensitivity, -93dBm@GFSK, -95dBm@π/4 DQPSK, -87dBm@8DPSK