SI5338 Datasheet, PDF (62/170 Pages) Silicon Laboratories – I2C-PROGRAMMABLE ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR

Si5338
Register 34.
Bit
Name
Type
D7
D6
D5
R3DIV_IN[2:0]
R/W
D4
D3
D2
R3DIV[2:0]
R/W
D1
MS3_PDN
R/W
D0
DRV3_PDN
R/W
Reset value = xxxx xxxx
Bit
Name
Function
Selects the input to the R3 divider. R3 divider output goes to CLK3.
0: P2DIV_IN (fbclk) selected
1: P1DIV_IN (refclk) selected
2: P2DIV_OUT (P2 divider output) selected
7:5 R3DIV_IN[2:0] 3: P1DIV_OUT (P1 divider output) selected
4: XOCLK selected
5: MultiSynth0 output selected
6: MultiSynth3 output selected
7: No Clock selected
CLK3 R3 Output Divider.
0: Divide by 1
1: Divide by 2
4:2
R3DIV[2:0] 2: Divide by 4
3: Divide by 8
4: Divide by 16
5: Divide by 32
MultiSynth3 Power Down.
1
MS3_PDN 0: MultiSynth3 is power up
1: MultiSynth3 powered down
R3 and CLK3 Powerdown.
0
DRV3_PDN 0: R3 output divider and CLK3 driver powered up
1: R3 output divider and CLK3 driver powered down
62
Rev. 0.6