User manual

RN-52-EK-UG
www.rovingnetworks.com Version 1.0 1/27/13 page 4
Advanced Information
FIGURE 1-1: RN-52-EK EVALUATION BOARD
PCM In/Out, AIO0, GPIO9
(J3)
Differential Audio In/Out
(J7)
SPI (J4)
Pin Description Pin Description Pin Description
1 UART_TX 1 SPKR_R- 1 SPI_MISO
2 VBUS 2 MIC_L+ 2 SPI_MOSI
3 UART_RX 3 SPKR_L- 3 SPI_SCK
4 AIO0 4 MIC_R+ 4 SPI_SS
5 GPIO9 5 SPKR_R+ 5 3.3 V
6GND 6MIC_L- 6 GND
7 GND 7 SPKR_L+
8 PCM_IN 8 MIC_R- MIC Left (J8)
9GND 9GND
10 PCM_OUT 10 MIC_BIAS
11 GND
Pin Description
12 PCM_SYNC MIC Right (J6) 1MIC_L
13 GND 2 GND
14 PCM_CLK
15 GND
Pin Description
16 3.3 V 1 MIC_R
2GND
PCM In/Out
AIO0, GPIO9 (J3)
USB to Module
(HCI Mode)
SPI (J4)
USB to UART
(SPP & Command Mode)
Audio In
Audio In
3.5 mm TRR
Audio Out
3.5 mm TRR
Status
LEDs
Differential
Audio In/Out (J7)
Volume
Up
Previous
Track
Pause/
Play
Volume
Down
Next
Track
GPIO
Pins
Power On
Pairing Mode
161412
151311
210864
19753
210864
19753
1
2
3
4
5
6
12
12