CS4270 Datasheet, PDF (16/48 Pages) Cirrus Logic – 24-Bit, 192 kHz Stereo Audio CODEC

CS4270
DIGITAL CHARACTERISTICS
Parameter (Note 16)
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage at I_o = 2 mA
Low-Level Output Voltage at I_o = 2 mA
Input Leakage Current
Serial Port
Control Port
Serial Port
Control Port
Serial Port
Control Port
MUTEA, MUTEB
Symbol
V_IH
V_IL
V_OH
V_OL
I_in
Min
0.7xVD
0.7xVLC
-
-
VD - 1.0
VLC - 1.0
VA - 1.0
-
-10
Typ Max Units
-
-
V
-
-
V
- 0.2xVD V
- 0.2xVLC V
-
-
V
-
-
V
-
-
V
-
0.4
V
-
10
µA
16. Serial Port signals include: SCLK, LRCK, SDOUT, SDIN
Control Port signals include: SDA/CDOUT, SCL/CCLK, AD1/CDIN, AD0/CS, RST
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT
(Logic "0" = AGND = 0 V; Logic "1" = VD, C_L = 20 pF)
Parameter
Sample Rate
Single-Speed Mode
Double-Speed Mode
Quad-Speed Mode
MCLK Specifications
MCLK Frequency
(Note 17)
Stand-Alone Mode
Control Port Mode
MCLK Duty Cycle
Master Mode
LRCK Duty Cycle
Symbol
Fs
Fs
Fs
fmclk
fmclk
SCLK Period
SCLK Duty Cycle
SCLK falling to LRCK edge
SCLK falling to SDOUT valid
SDIN valid to SCLK rising setup time
SCLK rising to SDIN hold time
Slave Mode
LRCK Duty Cycle
SCLK Period
(Note 17)
Single-Speed Mode
t_slr
t_sdo
t_sdis
t_sdih
t_sclkw
Double-Speed Mode
Quad-Speed Mode
t_sclkw
t_sclkw
SCLK Duty Cycle
SCLK falling to LRCK edge
t_slr
Min
4
50
100
1.024
1.024
40
-
-
-
-10
-
16
20
40
(^---1^---2^---8^1---)^---F^----s^-
(^---1^---2^---8^1---)^---F^----s^-
(^---6^---4^--1-)^---F^----s^-
45
-10
Typ
-
-
-
-
-
50
50
(^---6^---4^--1-)^---F^----s^-
50
-
-
-
-
50
-
-
-
50
-
Max
54
108
216
55.296
55.296
60
-
-
-
10
32
-
-
60
-
-
-
55
10
Unit
kHz
kHz
kHz
MHz
MHz
ns
%
s
%
ns
ns
ns
ns
%
s
s
s
ns
ns
16
DS686A1