L64777 A LSI Logic Corporation, L64777 A Datasheet - Page 27

• Manufacturer Part Number: L64777 A
• Description: Communications, DVB QAM Modulator
• Manufacturer: LSI Logic Corporation

Table 4
Pin Descriptions and Lists
L64777 Electrical Pin Descriptions
No.
10
11
1
2
3
4
5
6
7
8
9
Parameter
tCYCLE
tPWH
tPWL
tI_CYCLE
tI_PWH
tI_PWL
tI_S
tI_H
tRWH
tWK
tTDLY
L64777 Preliminary Timing Parameters
The following subsections provide descriptions for the electrical pins, as
well as numerical and alphabetic listings of all L64777 pins.
Table 5
The table provides the signal types for both output and input pins, and
the drive capacity for outputs.
L64777 DVB QAM Modulator
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
Reset Pulse Width HIGH
Wake-up Time after RESET
(used for RAM initialization during
microprocessor configuration
access)
Delay from TN
summarizes the electrical properties of the pins on the L64777.
1280
2560
18.5
Min
32
50
7
7
9
9
6
2
–
Max
20
–
–
–
–
–
–
–
–
–
–
–
cycles with
DVALIDIN
= HIGH
cycles
OCLK
ICLK
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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