CS42428 CIRRUS [Cirrus Logic], CS42428 Datasheet - Page 18

• Manufacturer Part Number: CS42428
• Description: 114 dB, 192kHz 8-Ch CODEC WITH PLL
• Manufacturer: CIRRUS [Cirrus Logic]

3.5.2
The DAC_SP and ADC_SP digital audio serial ports support 5 formats with varying bit depths from 16 to
24 as shown in Figure 7, Figure 8, Figure 9, Figure 10 and Figure 11. These formats are selected using the
configuration bits in the registers, “Functional Mode (address 03h)” on page 33 and “Interface Formats
(address 04h)” on page 34. For the diagrams below, single-speed mode is equivalent to Fs = 32, 44.1,
48kHz; double-speed mode is for Fs = 64, 88.2, 96 kHz; and quad-speed mode is for Fs = 176.4, 196 kHz.
18
AD C_S DOU T
D AC_ SDIN x
DAC _SC LK
ADC _SC LK
DA C_L RC K
AD C_L RC K
Right Justified Mode, Data Valid on Rising Edge of SCLK
Bits/Sample
16
24
Serial Audio Interface Formats
64 Fs
64 Fs
64 Fs
64, 128, 256 Fs
64 Fs
64 Fs
Master
1 5 1 4 1 3 1 2 1 1 10
Left C hannel
Figure 7. Right Justified Serial Audio Formats
SCLK Rate(s)
9
8
48, 64, 128 Fs
64 Fs
64 Fs
64, 128 Fs
64 Fs
64 Fs
7
6
Slave
5
4
3
2
1
0
single-speed mode
double-speed mode
quad-speed mode
single-speed mode
double-speed mode
quad-speed mode
1 5 1 4 1 3 1 2 1 1 10
Notes
R ight C han nel
9
8
7
6
5
4
CS42428
3
2
1
0