NSE-8G™ Standard Product Data Sheet
Preliminary
17 A.C. Timing Characteristics
(T = -40°C to +85°C, V
= 3.3 V ±5%, V
DDO
= 1.8 V ±5%)
DDI
A
17.1 Input Timing
Table 19 NSE-8G Input Timing (Figure 40)
Symbol Description
Min
-50
Max
+50
Units
ppm
F
SYSCLK Frequency (nominally 77.76 MHz )
SYSCLK High Pulse Width
SYSCLK Low Pulse Width
CMP Set-Up Time
SYSCLK
THI
5
5
3
0
3
0
ns
ns
ns
ns
ns
ns
SYSCLK
TLO
SYSCLK
TS
TH
TS
TH
CMP
CMP Hold Time
CMP
RC1
RC1
RC1FP Set-Up Time
RC1FP Hold Time
Figure 41 NSE-8G Input Timing
tLOSYSCLK
SYSCLK
tSRC1
tHRC1
RC1FP
tSCMP
tHCMP
CMP
Notes on Input Timing:
1. When a set-up time is specified between an input and a clock, the set-up time is the time in
nanoseconds from the 1.4 V point of the input to the 1.4 V point of the clock.
2. When a hold time is specified between an input and a clock, the hold time is the time in nanoseconds
from the 1.4 V point of the clock to the 1.4 V point of the input.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010850, Issue 1
176
PMC [ PMC-SIERRA, INC ]
