CS4365 Datasheet, PDF (14/51 Pages) Cirrus Logic – 114 dB, 192 kHz 6-Channel D/A Converter

CS4365
SWITCHING CHARACTERISTICS - PCM
(Inputs: Logic 0 = GND, Logic 1 = VLS, C_L = 30 pF)
Parameters
Symbol
RST pin Low Pulse Width
(Note 14)
MCLK Frequency
MCLK Duty Cycle
(Note 15)
Input Sample Rate - LRCK (Manual selection) Single-Speed Mode F_s
Double-Speed Mode F_s
Quad-Speed Mode F_s
Input Sample Rate - LRCK (Auto detect)
Single-Speed Mode Fs
Double-Speed Mode Fs
Quad-Speed Mode
Fs
LRCK Duty Cycle
SCLK Duty Cycle
SCLK High Time
t_sckh
SCLK Low Time
t_sckl
LRCK Edge to SCLK Rising Edge
t_lcks
SCLK Rising Edge to LRCK Falling Edge
t_lckd
SDIN Setup Time Before SCLK Rising Edge
t_ds
SDIN Hold Time After SCLK Rising Edge
t_dh
Min
1
1.024
45
4
50
100
4
84
170
45
45
8
8
5
5
3
5
Max Units
-
ms
55.2 MHz
55
%
54
kHz
108 kHz
216 kHz
54
kHz
108 kHz
216 kHz
55
%
55
%
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
Notes:
14. After powering up, RST should be held low until after the power supplies and clocks are settled.
15. See Tables 1 - 3 on page 20 for suggested MCLK frequencies.
LRCK
SCLK
SDINx
t_lcks
t_sckh
t_sckl
t_ds
t_dh
MSB
MSB-1
Figure 1. Serial Audio Interface Timing
LRCK
SCLK
SDIN1
t _lcks
t _lckd
t _lcks
t _sckh
tsckl
tds
tdh
MSB
MSB-1
Figure 2. TDM Serial Audio Interface Timing
14
DS670PP1