AK1545 Datasheet, PDF (34/39 Pages) Asahi Kasei Microsystems – 3.5GHz Low Noise Integer-N Frequency Synthesizer

[AK1545]
Fig. 11 Power Up Sequence (VDD1/VDD2/PDN synchronous power-up)
14. Frequency Setting Timing Chart (Recommended Flow)
VDD1, VDD2
PDN
Register Write-in
Address 2 Address 0 Address 1
Power down
{PD1}=1
setting
setting
Address 2
Power up
{PD1}=0
CP
Output 1
Hi-z
Output 2
Fig. 12 Frequency settings (controlled by {PD1})
VDD1, VDD2
PDN
Register Write-in
Address 3 Address 0 Address 1
{PD1}=0 setting setting
Hi-z
CP
Output 1
Output 2
Fig. 23 Frequency settings (controlled by INITIAL register)
注)
The function of Address3 is the same as Address2. Before writing in Address3, be sure to set
MS1471-E-00
34
2012/10