ds3102 Maxim Integrated Products, Inc., ds3102 Datasheet - Page 136

• Manufacturer Part Number: ds3102
• Description: Stratum 3 Timing Card Ic With Synchronous Ethernet Support
• Manufacturer: Maxim Integrated Products, Inc.

10.6 Reset Pin Timing
Table 10-12. Reset Pin Timing
(V
Figure 10-6. Reset Pin Timing Diagram
Rev: 012108
____________________________________________________________________________________________ DS3102
RST Low Time (Note 1)
SONSDH, SRCSW Setup Time to RST
SONSDH, SRCSW Hold Time from RST
Note 1:
DD
= 1.8V ±10%; V
SONSDH
SRCSW
RST should be held low while the REFCLK oscillator stabilizes, which can be 250ms or more for a OCXO after power is
applied. It is recommended to force RST low during power-up. The 1000ns minimum time applies if the RST pulse is applied
any time after the device has powered up and the oscillator has stabilized.
RST
PARAMETER
DDIO
X
= 3.3V ±5%, T
t1
t2
VALID
t3
A
X
= -40°C to +85°C.) (See
SYMBOL
t1
t2
t3
Figure
1000
MIN
50
0
10-6.)
TYP
MAX
136 of 141
UNITS
ns
ns
ns