SI5350C-B Datasheet, PDF (6/31 Pages) Silicon Laboratories – FACTORY-PROGRAMMABLE ANY-FREQUENCY CMOS CLOCK GENERATOR

Si5350C-B
Table 6. Output Characteristics
V_DD = 1.8 V ±5%, 2.5 V ±10%, or 3.3 V ±10%, T_A = –40 to 85 °C)
Parameter
Frequency Range¹
Load Capacitance
Duty Cycle
Rise/Fall Time
Output High Voltage
Output Low Voltage
Period Jitter^2,3
Symbol
Test Condition
Min
Typ
F_CLK
0.0025
—
C_L
F_CLK < 100 MHz
—
—
DC
F_CLK < 160 MHz, Measured
at V_DD/2
45
50
F_CLK > 160 MHz, Measured
at V_DD/2
40
50
t_r/t_f
20%–80%, C_L = 5 pF
—
1
V_OH
V_OL
C_L = 5 pF
V_DD – 0.6
—
—
—
J_PER 20-QFN, 4 outputs running,
‐
40
1 per VDDO
Max
Units
200
MHz
15
pF
55
%
60
%
1.5
ns
—
V
0.6
V
95 ps, pk‐pk
Cycle-to-cycle Jitter^2,3
10-MSOP or 20-QFN, all
‐
outputs running
J_CC 20-QFN, 4 outputs running,
—
1 per VDDO
70
155 ps, pk‐pk
50
90
ps, pk
10-MSOP or 20-QFN, all
—
outputs running
70
150
ps, pk
Notes:
1. Only two unique frequencies above 112.5 MHz can be simultaneously output.
2. Measured over 10k cycles. Jitter is only specified at the default high drive strength (50  output impedance).
3. Jitter is highly dependent on device frequency configuration. Specifications represent a “worst case, real world”
frequency plan; actual performance may be substantially better. Three-output 10MSOP package measured with clock
outputs of 74.25, 24.576, and 48 MHz. Eight-output 20QFN package measured with clock outputs of 33.33, 74.25, 27,
24.576, 22.5792, 28.322, 125, and 48 MHz.
Table 7. 25 MHz Crystal Requirements^1,2
Parameter
Symbol
Min
Typ
Max
Unit
Crystal Frequency
f_XTAL
—
25
—
MHz
Load Capacitance
C_L
6
—
12
pF
Equivalent Series Resistance
r_ESR
—
—
150

Crystal Max Drive Level
d_L
100
—
—
µW
Notes:
1. Crystals which require load capacitances of 6, 8, or 10 pF should use the device’s internal load capacitance for
optimum performance. See register 183 bits 7:6. A crystal with a 12 pF load capacitance requirement should use a
combination of the internal 10 pF load capacitance in addition to external 2 pF load capacitance (e.g., by using 4 pF
capacitors on XA and XB).
2. Refer to “AN551: Crystal Selection Guide” for more details.
6
Rev. 1.0