CS61318 Datasheet, PDF (7/28 Pages) Cirrus Logic – E1 LINE INTERFACE UNIT

CS61318
SERIAL PORT SWITCHING CHARACTERISTICS (TA = -40° to 85°C; TV+, RV+ = 5V ±5%;
Inputs: Logic 0 = 0 V, Logic 1 = RV+)
Parameter
Symbol Min
Typ
Max Units
SDI to SCLK Setup Time
SCLK to SDI Hold Time
SCLK Low Time
SCLK High Time
SCLK Rise and Fall Time
CS to SCLK Setup Time
SCLK to CS Hold Time
CS Inactive Time
SCLK to SDO Valid
CS to SDO High Z
t_dc
50
-
-
ns
t_cdh
50
-
-
ns
t_cl
240
-
-
ns
t_ch
240
-
-
ns
t_r, t_f
-
-
50
ns
t_cc
50
-
-
ns
t_cch
50
-
-
ns
t_cwh
250
-
-
ns
(Note 21) t_cdv
-
-
200
ns
t_cdz
-
100
-
ns
Notes: 21. Output load capacitance = 50 pF
t _cwh
CS
SCLK
t _cc ^{t ch}
t _cl
t _dc
t _cdh
SDI
LSB
LSB
t _cch
t _cdh
MSB
CONTROL BYTE
DATA BYTE
Figure 4. Serial Port Write Timing Diagram
CS
SCLK
SDI
LAST ADDR BIT
tcdv
SDO
CLKE = 0
D0
D1
D6
t _cdv
SDO
CLKE = 1
D0
D1
D6
Figure 5. Serial Port Read Timing Diagram
D7
D7
t _cdz
HIGH Z
DS441PP2
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