User's Manual

13
OPENBRAIN Technologies Co., LTD.
3.4. Mechanical Specifications
Mechanical Dimension
(Unit: mm)
36.0 ± 0.3
22.0 ± 0.3
2 4 6 . . 18
1 3 5 . . 17
Connecto
r
Bluetooth Chip
Antenna
2.0
1. VDD
2. RESETB
3. GND
4. GND
5. UART_TX
6. UART_RX
7. PCM_OUT
8. PCM_SYNC
9. PCM_IN
10. PCM_CLK
11. MIC+
12. MIC-
13. SPK+
14. SPK-
15. SPI_MISO
16. SPI_CSB
17. SPI_MOSI
18. SPI_CLK
3.0
7.5
2.0
3.0
1.2
2.0
4.0
1.4