SI4712-B30 Datasheet, PDF (24/42 Pages) Silicon Laboratories – FM RADIO TRANSMITTER WITH RECEIVE POWER SCAN

Si4712/13-B30
(IFALL = 1)
INVERTED
DCLK
(IFALL = 0)
DCLK
I2S
(IMODE = 0000)
DFS
DIN/DOUT
(IFALL = 1)
INVERTED
DCLK
(IFALL = 0)
DCLK
Left-Justified
(IMODE = 0110)
DFS
DIN/DOUT
LEFT CHANNEL
1 DCLK
1 DCLK
1
2
3
n-2
n-1
n
1
2
MSB
LSB
MSB
Figure 15. I²S Digital Audio Format
RIGHT CHANNEL
3
n-2
n-1
n
LSB
LEFT CHANNEL
RIGHT CHANNEL
1
2
3
n-2
n-1
n
1
2
3
MSB
LSB
MSB
Figure 16. Left-Justified Digital Audio Format
n-2
n-1
n
LSB
(IFALL = 0)
DCLK
DFS
(IMODE = 1100)
DIN/DOUT
(MSB at 1^st rising edge)
DIN/DOUT
(IMODE = 1000) (MSB at 2^nd rising edge)
1
MSB
1 DCLK
LEFT CHANNEL
RIGHT CHANNEL
2
3
n-2
n-1
n
1
2
3
n-2
n-1
LEFT CHANNEL
LSB
MSB
RIGHT CHANNEL
1
2
3
n-2
n-1
n
1
2
3
n-2
MSB
LSB
MSB
Figure 17. DSP Digital Audio Format
n
LSB
n-1
n
LSB
24
Rev. 1.1