AK1573 Datasheet, PDF (27/42 Pages) Asahi Kasei Microsystems – Low Noise Integrated VCO

[AK1573/AK1573B/AK1573C]
D[3:0]
FAST[3:0] : FAST counter timer
Set the effective time of fast lock-up mode.
Counter value = 3 + FAST[3:0] bits × 4
FAST[3:0]
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Counter value
3
7
11
15
19
23
27
31
35
39
43
47
51
55
59
63
< Address0x05 : Software Reset >
When writing a <Address0x05>, all of the internal flip-flops, except for the register and calibration
results, are initialized. Internal flip-flops except for the register and the calibration results is
initialized in the state of PDN1 pin = PDN2 pin = "H". When standing up PDN1 pin and PDN2 pin at
the same time or PDN1 pin and PDN2 pin are fixed to "H", internal flip-flops are not initialized. In this
case, it is needed to initialize internal flip-flops using the Software Reset.
015009351-E-00
- 27 -
2015/8