AK8186B Datasheet, PDF (53/69 Pages) Asahi Kasei Microsystems – Multi Output Clock Generator with Integrated 2.0GHz VCO

AK8186B
Register
Address Bit(s)
(Hex)
Name
6 Select REF2
Use REF_SEL
5 _Pin
Automatic
4 Reference
Switchover
Stay on REF2
3
0x01C
REF2
2 _{Power On}
REF1
1 _{Power On}
Differential
0 Reference
Description
If Register 0x1C[5]=0, select reference for PLL.
0: select REF1 (default)
1: select REF2
If Register 0x1C[4]=0, set method of PLL reference selection.
0: use Register 0x1C[6] (default).
1: use REF_SEL pin.
Automatic or manual reference selection switchover. Single-ended reference
mode must be selected by Register 0x1C[0]=0.
0: manual reference switchover (default).
1: automatic reference switchover.
Stays on REF2 after switchover
0: return to REF1 automatically when REF1 status good again (default).
1: stay on REF2 after switchover. Do not automatically return to REF1 .
When automatic reference switchover is disabled, this bit returns the REF2
power on.
0: REF2 Power off (default).
1: REF2 Power on.
When automatic reference switchover is disabled, this bit returns the REF1
power on.
0: REF1 Power off (default).
1: REF1 Power on.
Selects the PLL reference mode, differential or single-ended. Single-ended
must be selected for the automatic switchover or REF1 and REF2 to work.
0: single-ended reference mode (default).
1: differential reference mode.
draft-E-02
- 53 -
Sep-2012