SI5338 Datasheet, PDF (61/170 Pages) Silicon Laboratories – I2C-PROGRAMMABLE ANY-FREQUENCY, ANY-OUTPUT QUAD CLOCK GENERATOR

Si5338
Register 33.
Bit
Name
Type
D7
D6
D5
R2DIV_IN[2:0]
R/W
D4
D3
D2
R2DIV[2:0]
R/W
D1
MS2_PDN
R/W
D0
DRV2_PDN
R/W
Reset value = xxxx xxxx
Bit
Name
Function
Selects the input to the R2 divider. R2 divider output goes to CLK2.
0: P2DIV_IN (fbclk) selected
1: P1DIV_IN (refclk) selected
2: P2DIV_OUT (P2 divider output) selected
7:5 R2DIV_IN[2:0] 3: P1DIV_OUT (P1 divider output) selected
4: XOCLK selected
5: MultiSynth0 output selected
6: MultiSynth2 output selected
7: No Clock selected
CLK2 R2 Output Divider.
0: Divide by 1
1: Divide by 2
4:2
R2DIV[2:0] _{2: Divide by 4}
3: Divide by 8
4: Divide by 16
5: Divide by 32
MultiSynth2 Power Down.
1
MS2_PDN _{0: MultiSynth2 powered up}
1: MultiSynth2 powered down
R2 and CLK2 Power Down.
0
DRV2_PDN 0: R2 output divider and CLK2 driver powered up
1: R2 output divider and CLK2 driver powered down
Rev. 0.6
61