MT90225AG Zarlink Semiconductor, MT90225AG Datasheet - Page 82

• Manufacturer Part Number: MT90225AG
• Description: Description = 16 Port TC PHY For T1, E1 And DSL ;; Package Type = N/a ;; No. Of Pins =
• Manufacturer: Zarlink Semiconductor

82
AC Electrical Characteristics - System Clock and Reset
Note
CLK period width
CLK period width LOW
CLK period width HIGH
CLK falling
RESET pulse width
CLK rising
RESET
‡
: Typical figures are at 25 C, V
CLK
Parameter
DD
=3.3V, and for design aid only: not guaranteed and not subject to production testing
Symbol
t
t
t
t
t
t
CLKH
CLKR
CLKF
CLKL
CLK
RST
Figure 29 - System Clock and Reset
Zarlink Semiconductor Inc.
t
rst
Min
19
10
t
clkr
t
Typ
clkf
20
10
10
‡
Max
1.2
1.2
20
t
clkh
t
clk
period
Units
t
clkl
clk
ns
ns
ns
ns
ns
TDM Ring, could be
for full operation of
Test Conditions
Data Sheet
longer