L64767 LSI Logic Corporation, L64767 Datasheet - Page 19

• Manufacturer Part Number: L64767
• Description: Smatv Qam Encoder
• Manufacturer: LSI Logic Corporation

AC Timing
Table 4. L64767 Timing Parameters
(Sheet 1 of 2)
10
11
12
13
1
2
3
4
5
6
7
8
9
Parameter
t
t
t
t
t
t
t
t
t
t
t
t
t
CYCLE
PWH
PWL
I_CYCLE
I_PWH
I_PWL
I_S
I_H
OD
RWH
WK
SURCS
SUA
Description
Clock Cycle OCLK
Clock Pulse Width HIGH OCLK
Clock Pulse Width LOW OCLK
Clock Cycle ICLK
Clock Pulse Width HIGH ICLK
Clock Pulse Width LOW ICLK
Input Setup Time to ICLK
Input Hold to ICLK
Output Delay from OCLK
Reset Pulse Width HIGH
Wake-up time after RESET, used
for RAM initialization during
microprocessor configuration
access
READ Setup Before CS_N LOW
ADR[3:0] Setup Before AS_N
LOW
This section presents L64767 AC timing information, which was
simulated using a 16 MHz microprocessor. The numbers in column 1 of
Table 4 refer to the timing parameters shown in the timing diagrams that
follow. All parameters in this table apply for T
to 85 C, V
The actual product characterization for the L64767 was not available at
the time of this printing.
L64767 SMATV QAM Encoder
DD
= 4.75 V to 5.25 V, and an output load of 50 pF.
1024
2244
Min
32
15
15
16
50
7
7
6
1
3
1
2
31/62 MHz
Max
A
15
–
–
–
–
–
–
–
–
–
–
–
-
-
= 0 C
ICLK cycles with
DVALIDIN = HIGH
OCLK cycles
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
19