AMIS-53000 Datasheet, PDF (72/99 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53000 Frequency Agile Transceiver
Data Sheet
Defined Data Rates: Calculates all the parameters for the selected data rate (selected from the defined data rates).
RF Frequency: Calculates the parameters needed to set the TX/RX frequency
AM Filters: Calculates parameters for the filter defined by the data rate selection (defined data rates).
6.12 Chip Reset
Resets the entire chip, similar to a POR. This operation will reset the unlock test MUX register.
6.13 ADC Conversion
Table 75: ADC Configuration
Register
Number (HEX) Name
0X00
Command
0X01
0X1B
Status/Flag1
Housekeeping
Config
Bits
010xxxxx
110xxxxx
0
4
3
Function
Perform a single ADC conversion (see Table 84)
Perform continuous ADC conversions (see Table 85)
The ADC conversion has completed
Do an ADC conversion for the internal measurements
Do an ADC conversion for the external measurements
The AMIS-53000 contains an 8 bit analog to digital converter. This ADC can measure the voltage on a number of internal functions,
battery voltage, temperature, received signal strength indication voltage, and loop filter voltage. The results of these conversions are
available through reading the registers where that data is stored or by using the feature of the Burst transmission to send that
information to another node. The AMIS-53000 also contains two ADC channels available on the device pins. The ADC can convert
signals at a conversion rate up to 128k samples/second.
Setup registers descriptions:
Temp- Contains the value from the last ADC of the internal temperature sensor.
Battery- Contains the value from the last ADC of the internal battery voltage (divided by 2).
RSSI- Contains the value from the last ADC of the signal level sample in the receiver.
ADC1- Contains the value from the last ADC of the external analog input.
ADC2- Contains the value from the last ADC of the external analog input.
Loop Filter- Contains the value from the last ADC of the loop filter voltage.
6.13.1. ADC Conversion Results
6.13.1.1. Temp ADC
Table 76: Temp ADC - 0X34 [52]
Bit Name
Comment
7:0 _{TEMP_ADC [7:0]}
Temperature sensor ADC reading
AMI Semiconductor – Aug. 05, Rev. 1.0
72
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