CS4245 データシートの表示（PDF） - Cirrus Logic
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CS4245 Datasheet PDF : 57 Pages
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SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT 1
Logic ‘0’ = DGND = AGND = 0 V; Logic ‘1’ = VL, CL = 20 pF. (Note 28)
Parameter
Symbol Min
Typ
Sample Rate
MCLK Specifications
Single Speed Mode Fs
4
-
Double Speed Mode Fs
50
-
Quad Speed Mode Fs
100
-
MCLK1 Input Frequency
fmclk
1.024
-
MCLK1 Input Pulse Width High/Low
Master Mode
tclkhl
8
-
LRCK1 Duty Cycle
-
50
SCLK1 Duty Cycle
-
50
SCLK1 falling to LRCK1 edge
SCLK1 falling to SDOUT valid
Slave Mode
tslr
-10
-
tsdo
0
-
LRCK1 Duty Cycle
40
50
SCLK1 Period
Single-Speed Mode tsclkw
(---1---2-1--8-0--)-9--F----s-
-
Double-Speed Mode tsclkw
(---6--1-4--0-)---9F----s-
-
Quad-Speed Mode tsclkw
(---6--1-4--0-)---9F----s-
-
SCLK1 Pulse Width High
SCLK1 Pulse Width Low
SCLK1 falling to LRCK1 edge
SCLK1 falling to SDOUT valid
tsclkh
30
-
tsclkl
48
-
tslr
-10
-
tsdo
0
-
28. See Figure 3 and Figure 4 on page 23.
CS4245
Max
50
100
200
51.200
-
-
-
10
36
60
-
Unit
kHz
kHz
kHz
MHz
ns
%
%
ns
ns
%
ns
-
ns
-
ns
-
ns
-
ns
10
ns
36
ns
22
DS656F2
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