CS4365_07 Datasheet, PDF (18/52 Pages) Cirrus Logic – 114 dB, 192 kHz 6-Channel D/A Converter

CS4365
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI™ FORMAT
Inputs: Logic 0 = GND, Logic 1 = VLC, C_L = 20 pF.
Parameter
Symbol
Min
Max
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
f_sclk
-
6
t_srs
500
-
(Note 18)
t_spi
500
-
t_csh
1.0
-
t_css
20
-
t_scl
66
-
t_sch
66
-
t_dsu
40
-
(Note 19)
t_dh
15
-
(Note 20)
t_r2
-
100
(Note 20)
t_f2
-
100
Unit
MHz
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
Notes:
18. t_spi is only needed before first falling edge of CS after RST rising edge. t_spi = 0 at all other times.
19. Data must be held for sufficient time to bridge the transition time of CCLK.
20. For F_SCK < 1 MHz.
RST
t _srs
CS
CCLK
CDIN
t _spi t _css
t _scl t _sch
t _r2
t _f2
t _{dsu t dh}
Figure 5. Control Port Timing - SPI Format
t _csh
18
DS670F1