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
BIT_CLK Frequency
—
BIT_CLK Period
BIT_CLK Output Jitter
Tclk_period
—
—
BIT_CLK High Pulse Width*
BIT_CLK low Pulse Width*
SYNC Frequency
Tclk_high
36
Tclk_low
36
—
SYNC Period
Tsync_period
—
SYNC High Pulse Width
Tsync_high
—
SYNC Low Pulse Width
Tsync_low
—
*Note: Worst case duty cycle restricted to 45/55.
Typ
12.288
81.4
—
40.7
40.7
48.0
20.8
1.3
19.5
BIT_CLK
T clk_low
T clk_high
T clk_period
T sync_low
SYNC
T sync_high
T sync_period
Figure 4. Clocks Timing Diagram
Si3038
Max
Unit
—
MHz
—
ns
750
ps
45
ns
45
ns
—
kHz
—
µs
—
µs
—
µs
Rev. 2.01
9