SI5347_16 Datasheet, PDF (15/55 Pages) Silicon Laboratories – Dual/Quad DSPLL Any-Frequency, Any-Output Jitter Attenuators

Si5347/46 Rev D Data Sheet
Functional Description
3.7.5 Interrupt Pin (INTRb)
An interrupt pin (INTRb) indicates a change in state with any of the status indicators for any of the DSPLLs. All status indicators are
maskable to prevent assertion of the interrupt pin. The state of the INTRb pin is reset by clearing the sticky status registers.
LOS_FLG 0x0012[0]
IN0
OOF_FLG 0x0012[4]
LOS_FLG 0x0012[1]
IN1
OOF_FLG 0x0012[5]
LOS_FLG 0x0012[2]
IN2
OOF_FLG 0x0012[6]
LOS_FLG 0x0012[3]
IN2
OOF_FLG 0x0012[7]
Si5347
LOSXAXB_INTR_MSK 0x0017[1]
CAL_FLG_PLL[A] 0x000F[4]
CAL_FLG_PLL[B] 0x000F[5]
CAL
CAL_FLG_PLL[C] 0x000F[6]
CAL_FLG_PLL[D] 0x000F[7]
LOL_FLG_PLL[A] 0x0013[0]
LOL_FLG_PLL[B] 0x0013[1]
LOL
LOL_FLG_PLL[C] 0x0013[2]
LOL_FLG_PLL[D] 0x0013[3]
HOLD_FLG_PLL[A] 0x0013[4]
HOLD_FLG_PLL[B] 0x0013[5]
HOLD_FLG_PLL[C] 0x0013[6]
HOLD_FLG_PLL[D] 0x0013[7]
Hold
Figure 3.13. Interrupt Triggers and Masks
INTRb
3.8 Outputs
The Si5347 supports up to eight differential output drivers and the Si5346 supports four. Each driver has a configurable voltage ampli-
tude and common mode voltage covering a wide variety of differential signal formats including LVPECL, LVDS, HCSL, and CML. In
addition to supporting differential signals, any of the outputs can be configured as single-ended LVCMOS (3.3 V, 2.5 V, or 1.8 V) provid-
ing up to 16 single-ended outputs, or any combination of differential and single-ended outputs.
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0 | 14