SI5347_16 Datasheet, PDF (29/55 Pages) Silicon Laboratories – Dual/Quad DSPLL Any-Frequency, Any-Output Jitter Attenuators

Si5347/46 Rev D Data Sheet
Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
1. Driver strength is a register programmable setting and stored in NVM. Options are OUTx_CMOS_DRV = 1, 2, 3. Refer to the
Si5347/46 Family Reference Manualfor more details on register settings.
2. I_OL/I_OH is measured at V_OL/V_OH as shown in the dc test configuration.
3. A 5 pF capacitive load is assumed. The LVCMOS outputs were set to OUTx_CMOS_DRV = 3, at 156.25 MHz.
DC Test Configuration
Zs
VOL/VOH
IOL/IOH
IDDO
OUT
OUTb
LVCMOS Output Test Configuration
Trace length 5
inches
50
499
0.1 µF
4.7 pF
56
50 Scope Input
499
0.1 µF
50
50 Scope Input
4.7 pF
56
Table 5.7. Output Serial and Status Pin Specifications
(V_DD = 1.8 V ±5%, V_DDA = 3.3 V ±5%, V_DDS = 3.3 V ±5%, 1.8 V ±5%, T_A = –40 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Si5347 Serial and Status Output Pins (LOL_Ab, LOL_Bb, LOL_Cb, LOL_Db, INTRb, LOS_XAXBb, SDA/SDIO¹, A1/SDO)
Output Voltage
V_OH
I_OH = –2 mA
V_DDIO2 x
—
—
V
0.85
V_OL
I_OL = 2 mA
—
—
V_DDIO2 x
V
0.15
Si5346 Status Output Pins (INTRb, LOS_XAXBb, SDA/SDIO¹, A1/SDO)
Output Voltage
V_OH
I_OH = –2 mA
V_DDIO2 x
—
—
V
0.85
V_OL
I_OL = 2 mA
—
—
V_DDIO2 x
V
0.15
Si5346 Serial and Status Output Pins (LOL_Ab, LOL_Bb)
Output Voltage
V_OH
I_OH = –2 mA
V_DDS x 0.85
—
—
V
V_OL
I_OL = 2 mA
—
—
V_DDS x 0.15
V
Notes:
1. The V_OH specification does not apply to the open-drain SDA/SDIO output when the serial interface is in I²C mode or is unused
with I2C_SEL pulled high. V_OL remains valid in all cases.
2. V_DDIO is determined by the IO_VDD_SEL bit. It is selectable as V_DDA or V_DD. Users normally select this option in the ClockBuild-
er Pro GUI. Alternatively, refer to the Si5347-46 Family Reference Manual for more details on register settings.
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