AMIS-53050 Datasheet, PDF (99/107 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53050 Frequency Agile Transceiver
Data Sheet
8.3.1. Crystal Temperature Compensation
An on-chip temperature sensor combined with an on-chip A/D and a look-up table enable the part to maintain RF frequency accuracy
within ± 2.5ppm over all operating voltages and temperatures (-45°C to 85°C). This function can be enabled via configuration Bit 4
located in general options A. When this function is enabled, a new calculation for the center frequency word will be performed whenever
the temperature sensor storage register is updated with a new value. Therefore, it is possible to update the compensation value either
in housekeeping, as part of a burst transmit cycle or as controlled externally by issuing the instruction to perform an ADC measurement
of the temp sensor.
Table 112: RF Frequency Temperature Compensation
Register
Number (HEX) Name
Function
Bits
0X0C
General options A
4
Enable RF frequency temperature compensation
8.4 Software
The version of the AMIS-53050 is written to a register at the end of the manufacturing process. This code can help AMIS wireless
product support when there is an issue with the AMIS-53050.
Register descriptions:
AMIS ID- Register contains a code showing the version of the AMIS-53050.
8.4.1. AMIS Part Revision Code
Table 113: AMIS Part Revision Code - 0X41 [65]
Bit Name
Comment
7:0 _{AMIS_ID [7:0]}
Revision status of the AMIS-53050
AMI Semiconductor – Jan. 07, M-20639-002
99
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