AMIS-53000 Datasheet, PDF (18/99 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53000 Frequency Agile Transceiver
Data Sheet
Figure 6: Optional External Loop Filter Circuit
An internal 10kHz oscillator provides timing for functions; Sniff Mode, Burst transmit and housekeeping, when the AMIS-53000 is in its
lowest power mode (idle/standby). This oscillator requires no external components. The 10kHz oscillator’s internal trim capacitor is
trimmed by 8 bits of trim control in a self calibration. Once the trim is set, the oscillator frequency will be accurate to within two percent
over specified voltages and temperatures.
5.2 Receiver
The AMIS-53000 has a single channel receiver. The LNA for the receiver input requires a DC connection to ground on the input (must
not be an RF ground connection). The LNA for the receiver input requires a DC connection to RFVDD on the output. These
connections are supplied through inductors becoming part of the matching circuit for the receiver input.
AMI Semiconductor – Aug. 05, Rev. 1.0
www.amis.com
Figure 7: Receiver Input Matching Circuit
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