ED05

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Schematic

Pin Definition

Pin Number Definition Input/Output Description
1 GND Input/Output Power Supply GND
2 PIO_14 Input/Output Programmable I/O
3 PIO_5 Output Programmable I/O
4 RST Input external reset
5 SPI_MOSI CMOS Input SPI data input
6 SPI_CLK CMOS Input SPI clock
7 SPI_CSB CMOS Input CPI chip select
8 SPI_MISO CMOS Output SPI data output
9 RLED Output status LED 1, normally connect to red
10 BLED Output status LED 2, normally connect to blue
11 VREG Input ON/OFF, pairing, answering phone
12 1V8 Output 1.8V power output
13 VBAT Input lithium battery power supply input terminal end
14 CHG Input lithium battery power charging input terminal end
15 GND Input/Output Power Supply GND
16 MIC_BIAS Output microphone power supply
17 MIC_RP Input Positive terminal of the the microphone right channel differential input
18 MIC_RN Input Negative terminal of the the microphone right channel differential input
19 MIC_LP Input Positive terminal of the the microphone left channel differential input
20 MIC_LN Input Negtive terminal of the the microphone left channel differential input
21 GND Input/Output Audio GND
22 SPK_RN Output Stereo right channel differential output negative terminal
23 SPK_RP Output Stereo right channel differential output positive terminal
24 SPK_LN Output Stereo left channel differential output negative terminal
25 SPK_LP Output Stereo lfet channel differential output positive terminal
26 PIO_13 Input/Output Programmable I/O
27 PIO_11 Input/Output Programmable I/O
28 PIO_12 Input/Output Programmable I/O
29 PIO_9 Input/Output Programmable I/O
30 GND Input/Output Power Supply GND