Quadrature Modulator
CMX993/CMX993W
C-BUS Timings (See Figure 9)
Notes
Min.
Typ.
Max.
Units
t
t
t
t
t
t
t
t
t
CSN-Enable to Clock-High Time
Last Clock-High to CSN-High Time
CSN-High Time between transactions
Inter-Byte Time
100
-
-
ns
CSE
CSH
CSOFF
NXT
CK
100
1.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ns
µs
ns
ns
ns
ns
ns
ns
200
200
100
100
75.0
25.0
Clock-Cycle Time
Serial Clock (SCLK) - High Time
Serial Clock (SCLK) - Low Time
Command Data (CDATA) - Set-Up Time
Command Data (CDATA) – Hold Time
CH
CL
CDS
CDH
Maximum 30pF load on each C-BUS interface line.
CSN
tCSOFF
tCSH
tCSE
tCK
tNXT
SCLK
CDATA
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
= Level not important or undefined
tCH
70%VDD
30%VDD
SCLK
tCL
tCDH
tCDS
CDATA
Note: Only 1 byte of data is used in CMX993/CMX993W C-BUS transactions.
Figure 9 C-BUS Timing
2013 CML Microsystems Plc
25
D/993/10
CMLMICRO [ CML MICROCIRCUITS ]
