SI5348 Datasheet, PDF (40/54 Pages) Silicon Laboratories – Network Synchronizer for SyncE/ 1588 PTP Telecom Boundary (T-BC) and Slave (T-SC) Clocks

7. Detailed Block Diagram
3
IN0
IN0b
IN1
IN1b
IN2
IN2b
÷
P0n
P0d
÷
P1n
P1d
÷
P2n
P2d
IN3
IN4
I2C_SEL
SDAA1//SSDDIOO
SCLK
A0/CSb
RSTb
SPI/
I²C
NVM
Si5348 Rev D Data Sheet
Detailed Block Diagram
48-54 MHz XTAL
5 MHz – 250 MHz
TCXO/OCXO
or REFCLK
XA
XB
OSC
REFb
REF
DSPLLB
DSPLL_A
DCO
PD LPF
f
÷
Mn_A
Md_A
DSPLL_C
DCO
PD LPF
f
÷
Mn_C
Md_C
Output
Crosspoint
A
C
D
A
C
D
A
C
D
A
C
D
DSPLL_D
DCO
A
C
PD LPF
D
f
÷
Mn_D
Md_D
A
C
D
Si5348
÷R0
÷R1
÷R2
÷R3
÷R4
÷R5
Status
Monitors
R5
D
C
÷R6
A
VDDO0
OUT0
OUT0b
VDDO1
OUT1
OUT1b
VDDO2
OUT2
OUT2b
VDDO3
OUT3
OUT3b
VDDO4
OUT4
OUT4b
VDDO5
OUT5
OUT5b
VDDO6
OUT6
OUT6b
Figure 7.1. Si5348 Detailed Block Diagram
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