MAX9450 Maxim, MAX9450 Datasheet - Page 3

• Manufacturer Part Number: MAX9450
• Description: The MAX9450/MAX9451/MAX9452 clock generators provide high-precision clocks for timing in SONET/SDH systems or Gigabit Ethernet systems
• Manufacturer: Maxim

DC ELECTRICAL CHARACTERISTICS (continued)
(V
V
AC ELECTRICAL CHARACTERISTICS
(V
2.4 - |V
155.5MHz and clock input = 19.44MHz, unless otherwise noted.) (Note 1)
Output Offset Voltage
Change in V
Complementary Output States
Output Short-Circuit Current
SERIAL INTERFACE INPUT, OUTPUT (SCL, SDA, CS)
Input High Level
Input Low Level
Input Leakage Current
Output Low Level
Input Capacitance
POWER CONSUMPTION
V
V
CLK OUTPUTS (CLK0, CLK1)
Reference Input Frequency
Output Frequency
VCXO Pulling Range
Output-to-Output Skew
Rise Time
Fall Time
Duty Cycle
Period Jitter (RMS)
Phase Noise
DDQ
DDA
DDA
DD
DDQ
and V
= 3.3V, and V
= V
= V
ID
Supply Current
/ 2|. Typical values at V
DD
DD
DDA
OS
PARAMETER
PARAMETER
= V
= V
Supply Current
Between
DDQ
DDQ
DDQ
_______________________________________________________________________________________
= 2.4V to 3.6V, and V
= 2.4V to 3.6V, and V
= 1.5V for MAX9451, T
DDA
= V
DD
High-Precision Clock Generators
SYMBOL
SYMBOL
DDQ
DDQ
ΔV
f
t
I
I
= V
V
V
I
OUT
SKO
V
CC1
CC2
V
f
T
OS
I
t
C
t
IN
OS
IL
OL
R
F
IH
OS
IL
J
A
I
= 1.4V to 1.6V for MAX9451, T
DDQ
= 1.4V to 1.6V for MAX9451, T
= +25°C, unless otherwise noted.)
= 3.3V and V
Measured at IN0 or IN1
Measured at CLK0 or CLK1
C
Skew between CLK0 and CLK1
(MAX9450 and MAX9452)
Skew between C LK0 and C LK1 (M AX9451)
20% to 80% of output swing
80% to 20% of output swing
Measured at the band 12kHz to 20MHz
1kHz offset
10kHz offset
100kHz offset
1MHz offset
Two output pins connected to GND
3mA sink current
Output clock
frequency =
155MHz
Output clock
frequency =
155MHz (MAX9450)
L
= 8pF (Note 2)
CONDITIONS
DDQ
CONDITIONS
= 1.5V for MAX9451, T
with Integrated VCXO
MAX9450
MAX9451
MAX9452
MAX9450
MAX9451
MAX9452
A
A
= -40°C to +85°C. |V
= -40°C to +85°C. Typical values at V
A
x V
= +25°C. C
0.008
MIN
1.05
MIN
0.7
15
43
-1
DD
ID
| = 200mV, V
TYP
-110
-130
-140
TYP
- 7.5
-70
1.2
0.4
0.4
0.8
10
55
70
65
55
65
14
10
50
55
L
= 10pF, clock output =
COM
x V
0.590
0.590
MAX
MAX
1.35
±60
- 15
500
160
106
0.3
0.4
35
+1
85
94
88
80
80
25
90
56
DD
DDA
= |V
= V
ID
UNITS
UNITS
MHz
MHz
ppm
dBc
mV
mA
mA
mA
µA
pF
/ 2| to
ps
ns
ns
ps
V
V
V
V
%
DD
3
=