Users Manual

FSC-BT806 Datasheet
Shenzhen Feasycom Technology Co.,Ltdwww.feasycom.com
-21-
4.8.1 Audio Input and Output
The audio input circuitry consists of:
2 independent 16-bit high-quality ADC channels:
 Programmable as either microphone or line input
 Programmable as either stereo or dual-mono inputs
 Multiplexed with 2 of the digital microphone inputs
 Each channel is independently configurable to be either single-ended or fully differential
 Each channel has an analogue and digital programmable gain stage for optimisation of
differentmicrophones
2 digital MEMS microphone channels, of which 4 have independent codec channels and 2 share their
codecs with the 2 high-quality audio inputs
The audio output circuitry consists of a dual differential class A-B output stage.
Note:
FSC-BT806 is designed for a differential audio output. If a single-ended audio output is required,
use anexternal differential to single-ended converter.
4.8.2 Audio Codec Interface
The main features of the interface are:
Stereo and mono analogue input for voice band and audio band
Stereo and mono analogue output for voice band and audio band
Support for stereo digital audio bus standards such as I²S
Support for IEC-60958 standard stereo digital audio bus standards, e.g. SPDIF and AES3 (also known as
AES/EBU)
Support for PCM interfaces including PCM master codecs that require an external system clock
Note:
To avoid any confusion regarding stereo operation this data sheet explicitly states which is the left and right
channel for audio output. With respect to audio input, software and any registers, channel 0 or channel A
represents the left channel and channel 1 or channel B represents the right channel.