AK1547 Datasheet, PDF (26/37 Pages) Asahi Kasei Microsystems – 4GHz Low Noise Integer-N Frequency Synthesizer

[AK1547]
CPHIZ : TRI-STATE output setting for charge pump
D6
Function
Remarks
0
Charge pumps are activated. Use this setting for normal operation.
1
TRI-STATE
Note 1)
Note 1) The charge pump output is turned OFF and put in the high-impedance (Hi-Z)
state.
CPPOLA : Selects positive or negative output polarity for CP1 and CP2
D5
Function
0
Negative
1
Positive
Remarks
High
Positive
Low
Low
Negative
Charge pump output voltage ^High
LD ： Selects output from [LD] pin
D4 D3 D2
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Function
DVSS
Digital lock detect
N divider output
DVDD
R divider output
Analog lock detect
DVSS
DVSS
Remarks
Open Drain
MS1464-E-00
26
2012/9