CDB42438 Cirrus Logic Inc, CDB42438 Datasheet - Page 24

• Manufacturer Part Number: CDB42438
• Description: Eval Bd 108dB 6&8ch Multi-Chnl CODECs
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42438

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42438
• Primary Attributes: 6 Single-Ended and 2 Differential Analog Inputs and 8 Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: Graphic User Interface
• Description/function: Audio CODECs
• Operating Supply Voltage: 5 V to 12 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS42438
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1500

24
SWITCHING SPECIFICATIONS - CONTROL PORT - SPI FORMAT
(VLC = 1.8 V - 5.0 V, VLS = VD = 3.3 V, VA = 5.0 V; Inputs: Logic 0 = DGND, Logic 1 = VLC, CDOUT C
Notes:
CCLK Clock Frequency
RST Rising Edge to CS Falling
CS Falling to CCLK Edge
CS High Time Between Transmissions
CCLK Low Time
CCLK High Time
CDIN to CCLK Rising Setup Time
CCLK Rising to DATA Hold Time
CCLK Falling to CDOUT Stable
Rise Time of CDOUT
Fall Time of CDOUT
Rise Time of CCLK and CDIN
Fall Time of CCLK and CDIN
23. Data must be held for sufficient time to bridge the transition time of CCLK.
24. For f
sck
CDOUT
CCLK
CDIN
<1 MHz.
RST
CS
Parameter
t
srs
t
css
Figure 8. Control Port Timing - SPI Format
t
sch
t
pd
t
scl
t
(Note 23)
(Note 24)
(Note 24)
dsu
MSB
MSB
t
dh
t
f2
Symbol
t
t
f
t
t
t
t
t
t
sck
css
csh
sch
dsu
t
t
t
t
srs
scl
dh
pd
r1
r2
f1
f2
t
r2
Min
1.0
20
20
66
66
40
15
0
-
-
-
-
-
t
csh
Max
100
100
6.0
50
25
25
-
-
-
-
-
-
-
CS42438
L
DS646F2
= 30 pF)
Units
MHz
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns