User guide

MAX9476
Low-Jitter, 8kHz Reference
Clock Synthesizer Outputs 35.328MHz
_______________________________________________________________________________________ 3
Note 1: Specifications are 100% tested at T
A
= +25°C. Specifications over temperature are guaranteed by design and characterization.
Note 2: No load on clock outputs.
Note 3: Guaranteed by design.
Note 4: Crystal loading capacitance is 14pF.
AC ELECTRICAL CHARACTERISTICS
(V
DD
= V
DDP
= +3.0V to +3.6V, C
L
= 20pF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
DD
= V
DDP
= +3.3V,
T
A
= +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
DIGITAL OUTPUT CLOCKS (CLK1–CLK6)
Frequency Range f
OUT
35.328
MHz
Clock Rise Time t
R1
20% to 80% V
DD
1.8 ns
Clock Fall Time t
F1
80% to 20% V
DD
1.8 ns
Duty Cycle 40 50 60 %
J
P1
Peak-to-peak 83 ps
Period Jitter
J
P2
RMS 4
ps
RMS
Output Skew t
S
Peak-to-peak
185
ps
REFERENCE CLOCK OUTPUT (REO)
Frequency f
REF
8 kHz
Clock Rise Time t
R2
1.8 ns
Clock Fall Time t
F2
1.8 ns
Duty Cycle 40 50 60 %
VCXO
Crystal Frequency f
XTL
35.328
MHz
Crystal Accuracy
Including frequency accuracy and
temperature range
±25
ppm
VCXO Pulling Range (Note 4)
-100 +100
ppm
Input Reference CLK Pulse Width
t
W
Measured at high or low states 10 ns