iWave iW-RainboW-G25S, Руководство пользователя по оборудованию

Страница: 16 / 33

REL1.0
Page 16 of 33
Snapdragon 820 SBC Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.6 Audio/Video Feature
2.6.1 Audio IN/OUT Port
Snapdragon 820 SBC supports Audio In/Out through on board Audio codec WCD-9335 from Qualcomm. This audio
codec is interfaced with APQ8096 CPU through SLIMbus interface. WCD-9335 audio codec can support up to Six
audio analog-to-digital converters (ADCs) and seven digital-to-analog converters (DACs), Six digital microphone
inputs (three clock/data pairs) and Multi-button headset control (MBHC) for smart accessory detection features
Snapdragon 820 SBC supports one 3.5mm stereo Headphone Jack to support Headphone In/Out. This Headphone
In/Out Jack (J3) is physically located at the top of the board as shown below. Also Snapdragon 820 SBC supports
DMIC1 interface from WCD-9335 on 6Pin connector (J5) to support digital mic input and Earphone Output from
WCD-9335 on 30Pin I/O connector (J4) to support audio output. Refer Section 2.10.1 and 2.10.2 for DMIC1 &
Earphone Output interface pinout details.
Figure 3: Audio IN/OUT Connector
Table 3: Audio In/Out Jack Pin Out
Pin
No
Pin Name Signal Name
Signal Type /
Termination
Description
1 HPH_L HPH_L O, Analog Headphone Output Left.
2 HPH_R HPH_R O, Analog Headphone Output Right.
3 HSDET_L HSDET_L I, Analog Headphone Detection.
4 MIC AMIC I, Analog Microphone Input Signal.
5 GND HPH_REF Power Ground.