SI5356A Datasheet, PDF (6/29 Pages) Silicon Laboratories – IC PROGRAMMABLE, ANY-FREQUENCY 1–200 MHZ, QUAD FREQUENCY 8-OUTPUT CLOCK GENERATOR

Si5356A
Table 4. Crystal Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Crystal Frequency
F_XTAL
Option 1
Option 2
—
25
—
—
27
—
Load Capacitance
(on-chip differential)
Crystal Output
Capacitance
c_L (supported)*
c_L (recommended)
C_O
11
12
13
17
18
19
—
—
5
Equivalent Series
Resistance
ESR
25 MHz
27 MHz
—
—
100
—
—
75
Crystal Drive Level
d_L
Rating
100
—
—
*Note: See "AN360: Crystal Selection Guide for Si533x and Si5355/56 Devices" for how to adjust the registers to
accommodate a 12 pF crystal C_L
Unit
MHz
MHz
pF
pF
pF


µW
Table 5. I²C Specifications (SCL,SDA)¹
Parameter Symbol Test Condition
Standard Mode
Fast Mode
Unit
LOW level input
voltage
HIGH level input
voltage
Hysteresis of
Schmitt trigger
inputs
LOW level output
voltage (open drain
or open collector)
at 3 mA sink
current
Input current
Capacitance for
each I/O pin
I²C Bus timeout
V_ILI2C
V_IHI2C
V_HYS
V_OLI2C2
I_II2C
C_II2C
—
V_DDI2C2 = 2.5/3.3 V
V_DDI2C2 = 1.8 V
V_IN = –0.1 to V_DDI2C
Min
Max
–0.5
0.3 x V_DDI2C
0.7 x V_DDI2C
3.63
N/A
N/A
0
0.4
N/A
N/A
–10
10
—
4
25
35
Min
–0.5
0.7 x
V_DDI2C2
0.1
0
0
–10
—
25
Max
0.3 x V_DDI2C2
V
3.63
V
—
V
0.4
V
0.2 x V_DDI2C
V
10
µA
4
pF
35
ms
Notes:
1. Refer to NXP’s UM10204 I²C-bus specification and user manual, revision 03, for further details.
2. Only I²C pull up voltages (VDDI2C) of 1.71 to 3.63 V are supported. Must write register 27[7] = 1 if the I²C bus voltage is
less than 2.25 V.
6
Rev. 1.3