Tool_Airforce system CalibrationRevisedAirforce Calibration
November 1, 2002
Main Topic
Calibration Introduction Calibration Setup Calibration Stages
CCXO calibration Receiver Calibration Rx gain stage calibration Transmitter Calibration Tx IQ Gain&Phase Imbalance calibration Tx IQ DC Offset Tx power Tx Ramp Pedestal Battery & Charger
2002-11-1
Conexant GSM Training - Calibration
2
Calibration Introduction
What’s the Calibration?
Using S/W to Compensate the H/W difference automatically S/W Compensation: Output data stored in non-volatile memory ( Flash or Eeprom ) and utilized by Layer 1 code H/W difference: Component difference and production process
Why need to calibrate?
Ensure uniform performance from each handset. Mitigate tolerance differences between different RF components. Compliance with GSM requirements
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