BT800 Hardware Integration Guide
Version 0.2
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CONN-GUIDE-BT800_v0_2
PCM_CLK
SCK
Configure the digital audio interface using PSKEY_DIGITAL_AUDIO_CONFIG, see BlueCore Audio API
Specification and the PS Key file.
Figure 13: PCM Configuration
The internal representation of audio samples within BT800is 16-bit and data on SD_OUT is limited to 16-bit
per channel.
Table 12: Digital Audio Interface Slave Timing
Symbol
Parameter
Min
Typ
Max
Unit
-
SCK Frequency
-
-
6.2
MHz
-
WS Frequency
-
-
96
kHz
t
ch
SCK high time
80
-
-
ns
t
cl
SCK low time
80
-
-
ns
Table 13: I²S Slave Mode Timing
Symbol
Parameter
Min
Typ
Max
Unit
t
ssu
WS valid to SCK high set-up time
20
-
-
ns
t
sh
SCK high to WS invalid hold time
2.5
-
-
ns
