CS4351_05 Datasheet, PDF (12/37 Pages) Cirrus Logic – 192 kHz Stereo DAC with 2 Vrms Line Out

CS4351
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI™ FORMAT
(Inputs: Logic 0 = GND, Logic 1 = VL, C_L = 20 pF)
Parameter
CCLK Clock Frequency
RST Rising Edge to CS Falling
CCLK Edge to CS Falling
CS High Time Between Transmissions
CS Falling to CCLK Edge
CCLK Low Time
CCLK High Time
CDIN to CCLK Rising Setup Time
CCLK Rising to DATA Hold Time
Rise Time of CCLK and CDIN
Fall Time of CCLK and CDIN
(Note 8)
(Note 9)
(Note 10)
(Note 10)
Symbol
f_sclk
t_srs
t_spi
t_csh
t_css
t_scl
t_sch
t_dsu
t_dh
t_r2
t_f2
Min
-
500
500
1.0
20
66
66
40
17
-
-
Max
6
-
-
-
-
-
-
-
-
100
100
Unit
MHz
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
Notes:
8. t_spi only needed before first falling edge of CS after RST rising edge. t_spi = 0 at all other times.
9. Data must be held for sufficient time to bridge the transition time of CCLK.
10. For F_SCK < 1 MHz.
RST
t _srs
CS
CCLK
CDIN
t _spi t _css
t _scl t _sch
t _csh
t _r2
t _f2
t _{dsu t dh}
Figure 3. Control Port Timing - SPI Format (Write)
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DS566F1