AMIS-52150 Low-Power Transceiver with Clock and Data Recovery
Data Sheet
Figure 10: Sniff Timing at RF Energy Detection
9.4 Quick Start
There are two oscillators in the AMIS-52150, a low power 10kHz RC oscillator and a crystal oscillator.
The RC oscillator is used to keep the AMIS-52150 running in a very low power mode. This oscillator is used to form the clocks for the
Sniff Mode timers and the application wakeup timers. Figure 11 shows a block diagram of the clocks in the AMIS-52150. The crystal
oscillator is the reference that is used to create the RF frequencies for transmit and receive. It is the reference for timing functions in the
AMIS-52150. An RC oscillator is used to produce a kicker signal when the crystal oscillator is needed to Quick Start.
Figure 11: Internal Clocks
AMI Semiconductor – Rev 4.0, Oct. 06 – M-20535-004
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