AK1599V Datasheet, PDF (27/41 Pages) Asahi Kasei Microsystems – RF Transmitter for Satellite Communication

[AK1599V]
11. Power up Sequence
■ Recommended Power up Sequence
PDN pin resets digital block except registers and powers down analog block. On the other hand, AKM recommends user to set all registers before
powering up analog block because registers don’t have reset. LOP/LON don’t output any undesired signal in the recommended power up sequence.
However, DATAO pin may output undesired signal for a period of 20CLK from CLK starts because initial value of Flip-Flop for ReadBack is undefined.
RFOUT pin doesn’t output undesired signal by setting TXON pin = “L”.
015006835-E-00
Fig.12 Recommended Power up Sequence (Internal 3.3V Regulator Mode)
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