SI5327 Datasheet, PDF (25/60 Pages) Silicon Laboratories – ANY-FREQUENCY PRECISION CLOCK MULTIPLIER/JITTER ATTENUATOR

Si5327
Register 4.
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
HIST_DEL [4:0]
Type
R
R
R
R/W
Reset value = 0001 0010
Bit
Name
Function
7:5
Reserved
4:0 HIST_DEL [4:0] HIST_DEL [4:0].
Selects amount of delay to be used in generating the history information used for Digi-
tal Hold.
See the Si53xx Family Reference Manual for a detailed description.
Register 5.
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
ICMOS [1:0]
Type
R/W
R
R
R
R
R
R
Reset value = 1110 1101
Bit
Name
Function
7:6 ICMOS [1:0] ICMOS [1:0].
When the output buffer is set to CMOS mode, these bits determine the output buffer drive
strength. The first number below refers to 3.3 V operation; the second to 1.8 V operation.
These values assume CKOUT+ is tied to CKOUT-.
00: 8mA/2mA
01: 16mA/4mA
10: 24mA/6mA
11: 32mA/8mA
5:0
Reserved
Rev. 1.0
25