AK1545 Datasheet, PDF (26/39 Pages) Asahi Kasei Microsystems – 3.5GHz Low Noise Integer-N Frequency Synthesizer

[AK1545]
The following table shows the relationship between counter value and {TIMER[3:0]}.
D13 D12 D11 D10
Function
Remarks
0
0
0
0
3 Counts
0
0
0
1
7 Counts
0
0
1
0
11 Counts
0
0
1
1
15 Counts
0
1
0
0
19 Counts
0
1
0
1
23 Counts
0
1
1
0
27 Counts
0
1
1
1
31 Counts
1
0
0
0
35 Counts
1
0
0
1
39 Counts
1
0
1
0
43 Counts
1
0
1
1
47 Counts
1
1
0
0
51 Counts
1
1
0
1
55 Counts
1
1
1
0
59 Counts
1
1
1
1
63 Counts
FASTMODE and FASTEN : Enables or disables the Fast Lock mode
D7 D9
0X
10
11
Function
Fast Lock Mode disable
Fast Lock Mode 1
Fast Lock Mode 2
Remarks
SW pin functions as a General Purpose Output
(GPO) which reflects a D9 register settings.
Timer is available
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.
MS1471-E-00
26
2012/10