AK7755EN_16 Datasheet, PDF (62/109 Pages) Asahi Kasei Microsystems – DSP with Mono ADC Stereo CODEC + Mic/Lineout Amp

[AK7755]
5. PCM Short Frame (mode7)
LRCK
SF
tBCLK
BICK
SDIN1, 2
63 62 61 60 59
M 22 21 20 19
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27
21L
M 22 21 20 19
SDOUT1, 2, 3
M 22 21 20 19
Left ch
2 1 L ^{M: MSB, L: LSB}
M 22 21 20 19
Right ch
10 9 8 7 6 5 4 3 2 1 0
21L
21L
Figure 39. 64fs PCM Short Frame
LRCK
BICK
SDIN1,2
SDOUT1,2,3
tBCLK
SF
255 254 253 252 251
M 22 21 20 19
234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219
21L
M 22 21 20 19
M 22 21 20 19
Left ch
2 1 L ^M:MSB,L:LSB
M 22 21 20 19
Right ch
tBCLK × 32
tBCLK × 256
Figure 40. PCM Short Frame 256fs
202 201 200 199 198
21L
21L
3210
6. PCM Long Frame (mode8)
LRCK
LF
tBCLK ≤ t ≤ ts-tBCLK
BICK
63 62 61 60 59
SDIN1, 2
M 22 21 20 19
SDOUT1, 2, 3
M 22 21 20 19
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27
21L
tBCLK _{M 22 21 20 19}
10 9 8 7 6 5 4 3 2 1 0
21L
2 1 L ^{M: MSB, L: LSB}
Left ch
tBCLK × 32
M 22 21 20 19
21L
Right ch
tBCLK × 32
Figure 41. 64fs PCM Long Frame
014006643-E-00
- 62 -
2014/10