SM840002 Datasheet, PDF (5/9 Pages) Micrel Semiconductor – ClockWorks™ Dual 10-Gigabit/Gigabit Ethernet 62.5MHz, 125MHz, or 156.25MHz

Micrel, Inc.
LVCMOS DC Electrical Characteristics⁽³⁾
V_DDA = V_DD =2.5V or 3.3V ±5%, V_DDO = 2.5V or 3.3V ±5%, T_A = –40°C to +75°C, unless noted.
Symbol Parameter
Condition
Min.
V_IH
Input HIGH Voltage
2
V_IL
Input LOW Voltage
−0.30
OE, F_SEL0, F_SEL1
V_DD = V_IN =3.465V
or 2.625V
I_IH
Input HIGH Current
nPLL_SEL, MR,
V_DD = V_IN =3.465V
nXTAL_SEL, TEST_CLK _{or 2.625V}
V_DD = 3.465V or 2.625V
OE, F_SEL0, F_SEL1
−150
V_IN = 0V
I_IL
Input LOW Current
nPLL_SEL, MR,
V_DD = 3.465V or 2.625V
nXTAL_SEL, TEST_CLK _{VIN = 0V}
−5
V_OH
Output HIGH Voltage⁽⁴⁾
V_DDO = 3.3V ±5%
2.6
V_DDO = 2.5V ±5%
1.8
V_OL
Output LOW Voltage⁽⁴⁾
V_DDO = 3.3V ±5% or 2.5V
±5%
SM840002
Typ.
Max.
V_DD +
0.3
0.80
5
Units
V
V
µA
150
µA
µA
µA
V
V
0.5
V
AC Electrical Characteristics⁽⁵⁾
V_DDA = V_DD =2.5V or 3.3V ±5%, V_DDO = 2.5V or 3.3V ±5%, T_A = –40°C to +75°C, unless noted.
Symbol Parameter
Condition
Min.
Typ.
Max. Units
F_OUT
Output Frequency
F_SEL[1:0] = 00
156.25
MHz
F_OUT
Output Frequency
F_SEL[1:0] = 01
125
MHz
F_OUT
Output Frequency
F_SEL[1:0] = 10
62.5
MHz
F_OUT
t_SKEW
Output Frequency
Output Skew⁽⁶⁾
F_SEL[1:0] = 11
125
MHz
12
ps
t_JITTER
RMS Phase Jitter
156.25MHz
0.064
ps
t_JITTER
RMS Phase Jitter
125MHz
0.065
ps
t_JITTER
RMS Phase Jitter
62.5MHz
0.077
ps
t_R/t_F
Output Rise/ Fall Time
20% to 80%
100
350
ps
O_DC
Output Duty Cycle
48
50
52
%
Notes:
4. Outputs terminated with 50Ω to V_DD/2. See Parameters measurements 3.3V load test circuit.
5. The circuit is designed to meet the AC specifications shown in the above table(s) after thermal equilibrium has been established.
6. Defined as skew between outputs at the same supply voltage and with equal load conditions; Measured at the output differential crossing points.
November 2010
5
M9999-110810
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