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Si3038
Rev. 2.01
9
Figure 4. Clocks Timing Diagram
Table 9. AC Link Timing Characteristics—Clocks
(VD = 3.0 to 3.6 V, VA = Charge Pump, TA = 25°C, CL = 50 pF)
Parameter
Symbol
Min
Typ
Max
Unit
BIT_CLK Frequency
—
12.288
—
MHz
BIT_CLK Period
Tclk_period
—81.4—
ns
BIT_CLK Output Jitter
—
—
750
ps
BIT_CLK High Pulse Width*
Tclk_high
36
40.7
45
ns
BIT_CLK low Pulse Width*
Tclk_low
36
40.7
45
ns
SYNC Frequency
—
48.0
—
kHz
SYNC Period
Tsync_period
—20.8—
µs
SYNC High Pulse Width
Tsync_high
—1.3
—
µs
SYNC Low Pulse Width
Tsync_low
—19.5—
µs
*Note: Worst case duty cycle restricted to 45/55.
SYNC
BIT_CLK
T
clk_high
T
clk_low
T
sync_low
T
sync_period
T
sync_high
T
clk_period