CS4245 Datasheet, PDF (21/54 Pages) Cirrus Logic – 105 dB, 24-Bit, 192 kHz Streo Sudio CODEC

CS4245
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT 1 (Logic ‘0’ = DGND = 0 V;
Logic ‘1’ = VL, C_L = 20 pF) (Note 25)
Parameter
Symbol Min
Typ
Max
Unit
Sample Rate
Single Speed Mode Fs
4
-
50
kHz
Double Speed Mode Fs
50
-
100
kHz
Quad Speed Mode Fs
100
-
200
kHz
MCLK Specifications
MCLK1 Input Frequency
fmclk
1.024
-
51.200 MHz
MCLK1 Input Pulse Width High/Low
tclkhl
8
-
-
ns
Master Mode
LRCK1 Duty Cycle
-
50
-
%
SCLK1 Duty Cycle
-
50
-
%
SCLK1 falling to LRCK1 edge
SCLK1 falling to SDOUT valid
Slave Mode
t_slr
-10
-
10
ns
t_sdo
0
-
32
ns
LRCK1 Duty Cycle
40
50
60
%
SCLK1 Period
Single Speed Mode t_sclkw
-------¹---⁰---⁹-------
( 128 ) F s
-
Double Speed Mode t_sclkw
-----¹---⁰---⁹------
(64)Fs
-
-
ns
-
ns
Quad Speed Mode t_sclkw
(^---6^--1-4^--0-)^--9-F----s-
-
-
ns
SCLK1 Pulse Width High
SCLK1 Pulse Width Low
SCLK1 falling to LRCK1 edge
SCLK1 falling to SDOUT valid
t_sclkh
30
-
-
ns
t_sclkl
48
-
-
ns
t_slr
-10
-
10
ns
t_sdo
0
-
32
ns
25. See figures 3 and 4 on page 22.
21