AWR1843: Question about NF degradation

Chenglin Cui

Prodigy 80 points

Part Number: AWR1843

Hello,

I have some questions about Rx noise performance of AWR1843.

I used AWR1843BOOST, DCA1000 and mmWave studio to monitor NF. I also have a custom board using AWR1843 chip and RO3003.

The custom board show NF degradation about 5dB. I’m looking for the reason and hope you can help.

The custom antenna is similar to your EVB and the transition is designed based on the http://www.ti.com/lit/an/spracg5/spracg5.pdf document.

The antenna S11 measurement shows <-15dB. The PMIC is the same with your EVB, the routing and bypass cap are similar.

I also checked reflection coefficient from TX Ball Break Monitoring and the results are -20.3, -15.1, -17.7 for 3 tx (EVB is -20.1, -24.9, -17.5).

I used the same antenna and transition for Tx and Rx.

The Tx spectrum shows 6dB higher PN inside 100kHz offset, above this offset frequency the PN is similar with EVB.

The config file, NF and gain results of center frequency is attached.

Please tell me if there is a possible reason for the degradation.

Is there any other parameter I should check?

Thank you!

76G_77G_10MS.xml

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
	<apiname_channel_cfg>
		<param name="rx0En" value="1" />
		<param name="tx0En" value="0" />
		<param name="rx1En" value="1" />
		<param name="cascadeMode" value="0" />
		<param name="rx2En" value="1" />
		<param name="tx2En" value="0" />
		<param name="rx3En" value="1" />
		<param name="tx1En" value="0" />
	</apiname_channel_cfg>
	<apiname_adc_cfg>
		<param name="bitsVal" value="2" />
		<param name="IQSwap" value="0" />
		<param name="formatVal" value="2" />
	</apiname_adc_cfg>
	<apiname_lp_cfg>
		<param name="lpAdcMode" value="0" />
	</apiname_lp_cfg>
	<apiname_freqlimit_cfg>
		<param name="freqLimitLow" value="76.0" />
		<param name="freqLimitHigh" value="81" />
	</apiname_freqlimit_cfg>
	<apiname_rfldobypass_cfg>
		<param name="RFLdoByPass" value="0" />
	</apiname_rfldobypass_cfg>
	<apiname_radarmisccontrol_cfg>
		<param name="PerChirpPhaseShiftEna" value="0" />
	</apiname_radarmisccontrol_cfg>
	<apiname_calmonfreqtxpowlimit_cfg>
		<param name="freqLimitLowTx1" value="76.0" />
		<param name="freqLimitHighTx2" value="81" />
		<param name="freqLimitLowTx0" value="76.0" />
		<param name="tx0PowerBackoff" value="0" />
		<param name="tx1PowerBackoff" value="0" />
		<param name="freqLimitHighTx0" value="81" />
		<param name="tx2PowerBackoff" value="0" />
		<param name="freqLimitLowTx2" value="76.0" />
		<param name="freqLimitHighTx1" value="81" />
	</apiname_calmonfreqtxpowlimit_cfg>
	<apiname_datapath_cfg>
		<param name="dataPathCfgPath" value="1" />
		<param name="dataCfgFmt1" value="0" />
		<param name="pkt0VChannelNo" value="0" />
		<param name="pkt1VChannelNo" value="0" />
		<param name="dataCfgFmt0" value="0" />
	</apiname_datapath_cfg>
	<apiname_clock_cfg>
		<param name="dataRate" value="1" />
		<param name="laneClock" value="1" />
	</apiname_clock_cfg>
	<apiname_lvdslane_cfg>
		<param name="lane4En" value="0" />
		<param name="lane2En" value="1" />
		<param name="lane3En" value="0" />
		<param name="lane1En" value="1" />
		<param name="lvdsPacketEndPulse" value="0" />
		<param name="lvdsCrcEn" value="0" />
		<param name="laneFormat" value="0" />
		<param name="lvdsMsbFirst" value="1" />
	</apiname_lvdslane_cfg>
	<apiname_csi2lane_cfg>
		<param name="clockPol" value="0" />
		<param name="lane1Pos" value="2" />
		<param name="lane2Pos" value="4" />
		<param name="lane2Pol" value="0" />
		<param name="lane0Pos" value="1" />
		<param name="lane0Pol" value="0" />
		<param name="lane1Pol" value="0" />
		<param name="lane3Pos" value="5" />
		<param name="lane3Pol" value="0" />
		<param name="clockPos" value="3" />
	</apiname_csi2lane_cfg>
	<apiname_testpatterngen_cfg>
		<param name="testPatternRx3ICFGVal" value="0" />
		<param name="testPatternPktSize" value="0" />
		<param name="testPatternRx0ICFGStartOffset" value="0" />
		<param name="numTestPatternPkts" value="0" />
		<param name="testPatternRx1QCFGStartOffset" value="0" />
		<param name="testPatternRx2QCFGVal" value="0" />
		<param name="testPatternGenCtl" value="0" />
		<param name="testPatternRx3QCFGStartOffset" value="0" />
		<param name="testPatternRx0QCFGVal" value="0" />
		<param name="testPatternRx3QCFGVal" value="0" />
		<param name="testPatternRx2QCFGStartOffset" value="0" />
		<param name="testPatternRx1QCFGVal" value="0" />
		<param name="testPatternRx2ICFGVal" value="0" />
		<param name="testPatternRx0QCFGStartOffset" value="0" />
		<param name="testPatternRx1ICFGStartOffset" value="0" />
		<param name="testPatternRx3ICFGStartOffset" value="0" />
		<param name="testPatternGenTime" value="0" />
		<param name="testPatternRx0ICFGVal" value="0" />
		<param name="testPatternRx2ICFGStartOffset" value="0" />
		<param name="testPatternRx1ICFGVal" value="0" />
	</apiname_testpatterngen_cfg>
	<apiname_testsource_cfg>
		<param name="obj2PosY" value="327" />
		<param name="obj1AntPosRx1X" value="0" />
		<param name="obj2Sig" value="-95" />
		<param name="obj1VelY" value="0" />
		<param name="obj2VelZ" value="0" />
		<param name="obj1PosZ" value="0" />
		<param name="obj1PosY" value="3" />
		<param name="obj2PosZ" value="0" />
		<param name="obj1BMaxZ" value="327" />
		<param name="obj1BMaxX" value="327" />
		<param name="obj1BMaxY" value="327" />
		<param name="obj1AntPosRx4Z" value="0" />
		<param name="obj1AntPosRx2Z" value="0" />
		<param name="obj1AntPosRx3Z" value="0" />
		<param name="obj1AntPosRx1Z" value="0" />
		<param name="obj1VelX" value="0" />
		<param name="obj1AntPosRx3X" value="1" />
		<param name="obj1PosX" value="4" />
		<param name="obj2BMaxZ" value="327" />
		<param name="obj2BMaxX" value="327" />
		<param name="obj2BMaxY" value="327" />
		<param name="obj1BMinZ" value="-327.6" />
		<param name="obj1BMinX" value="-327.6" />
		<param name="obj1BMinY" value="0" />
		<param name="obj1AntPosTx2X" value="0" />
		<param name="obj1AntPosTx3X" value="0" />
		<param name="obj1Sig" value="-2.5" />
		<param name="obj1AntPosTx1X" value="0" />
		<param name="obj1VelZ" value="0" />
		<param name="obj2VelX" value="0" />
		<param name="obj2BMinZ" value="-327" />
		<param name="obj2BMinX" value="-327" />
		<param name="obj2BMinY" value="0" />
		<param name="obj2PosX" value="327" />
		<param name="obj1AntPosTx2Z" value="0" />
		<param name="obj1AntPosTx3Z" value="0" />
		<param name="obj2VelY" value="0" />
		<param name="obj1AntPosTx1Z" value="0" />
		<param name="obj1AntPosRx4X" value="1.5" />
		<param name="obj1AntPosRx2X" value="0.5" />
	</apiname_testsource_cfg>
	<apiname_profile_cfg>
		<param name="rampEndTime" value="120" />
		<param name="tx1PhaseShifter" value="0" />
		<param name="adcStartTimeConst" value="6" />
		<param name="hpfCornerFreq1" value="0" />
		<param name="freqSlopeConst" value="7.483" />
		<param name="rxGain" value="30" />
		<param name="numAdcSamples" value="256" />
		<param name="tx1OutPowerBackoffCode" value="0" />
		<param name="tx2OutPowerBackoffCode" value="0" />
		<param name="pprofileId" value="0" />
		<param name="tx3OutPowerBackoffCode" value="0" />
		<param name="hpfCornerFreq2" value="0" />
		<param name="txStartTime" value="0" />
		<param name="tx2PhaseShifter" value="0" />
		<param name="startFreqConst" value="75.9999999761582" />
		<param name="retainRxCalLUT" value="0" />
		<param name="vcoSelect" value="0" />
		<param name="idleTimeConst" value="100" />
		<param name="forceVCOSelect" value="0" />
		<param name="tx3PhaseShifter" value="0" />
		<param name="digOutSampleRate" value="10000" />
		<param name="rfGainTarget" value="0" />
		<param name="retainTxCalLUT" value="0" />
	</apiname_profile_cfg>
	<apiname_chirp_cfg>
		<param name="startFreqVar" value="0" />
		<param name="adcStartTimeVar" value="0" />
		<param name="cprofileId" value="0" />
		<param name="tx3Enable" value="0" />
		<param name="tx2Enable" value="0" />
		<param name="tx1Enable" value="0" />
		<param name="freqSlopeVar" value="0" />
		<param name="idleTimeVar" value="0" />
		<param name="chirpEndIdx" value="0" />
		<param name="chirpStartIdx" value="0" />
	</apiname_chirp_cfg>
	<apiname_frame_cfg>
		<param name="frameCount" value="400" />
		<param name="triggerSelect" value="0" />
		<param name="triggerDelay" value="0" />
		<param name="testSourceEn" value="0" />
		<param name="loopCount" value="128" />
		<param name="fchirpStartIdx" value="0" />
		<param name="periodicity" value="40" />
		<param name="fchirpEndIdx" value="0" />
	</apiname_frame_cfg>
	<apiname_advanceframe_cfg>
		<param name="numOfSubFrames" value="1" />
		<param name="sb3noOfAdcSamples" value="1" />
		<param name="sb4subFramePeriod" value="40" />
		<param name="sb3forceProfileIdx" value="0" />
		<param name="sb1numOfBrust" value="1" />
		<param name="sb2numOfLoops" value="128" />
		<param name="sb4numOfLoops" value="128" />
		<param name="loopBackCfg" value="0" />
		<param name="sb4numOfBrust" value="1" />
		<param name="sb1subFramePeriod" value="40" />
		<param name="numOfFrames" value="0" />
		<param name="sb3numOfBrustLoops" value="1" />
		<param name="sb3chirpStartIdxOffset" value="0" />
		<param name="sb2chirpStartIdx" value="0" />
		<param name="sb3brustPeriodicity" value="40" />
		<param name="sb2numOfBrust" value="1" />
		<param name="sb2noOfAdcSamples" value="1" />
		<param name="sb4noOfAdcSamples" value="1" />
		<param name="sb1numOfChirps" value="1" />
		<param name="sb4chirpStartIdx" value="0" />
		<param name="sb4brustPeriodicity" value="40" />
		<param name="sb1chirpStartIdxOffset" value="0" />
		<param name="sb2chirpStartIdxOffset" value="0" />
		<param name="softwareTrigger" value="1" />
		<param name="sb3numOfBrust" value="1" />
		<param name="sb3subFramePeriod" value="40" />
		<param name="sb3chirpStartIdx" value="0" />
		<param name="sb4numOfBrustLoops" value="1" />
		<param name="sb1numOfBrustLoops" value="1" />
		<param name="sb4forceProfileIdx" value="0" />
		<param name="sb1brustPeriodicity" value="40" />
		<param name="sb3numOfLoops" value="128" />
		<param name="sb3numOfChirps" value="1" />
		<param name="sb1forceProfileIdx" value="0" />
		<param name="frameTriggerDelay" value="0" />
		<param name="sb2numOfChirps" value="1" />
		<param name="sb1chirpStartIdx" value="0" />
		<param name="sb2numOfBrustLoops" value="1" />
		<param name="sb2forceProfileIdx" value="0" />
		<param name="sb2subFramePeriod" value="40" />
		<param name="testSourceEn" value="0" />
		<param name="forceProfileEna" value="0" />
		<param name="sb4chirpStartIdxOffset" value="0" />
		<param name="loopBackCfgSubFrameID" value="3" />
		<param name="sb1noOfAdcSamples" value="1" />
		<param name="sb4numOfChirps" value="1" />
		<param name="sb2brustPeriodicity" value="40" />
		<param name="sb1numOfLoops" value="128" />
		<param name="hardwareTrigger" value="0" />
	</apiname_advanceframe_cfg>
	<apiname_loopbackburst_cfg>
		<param name="digCorrRxGainPhase" value="0" />
		<param name="iflLoopBackMag" value="2" />
		<param name="rfGainTarget" value="0" />
		<param name="psTx1LoopBackFreq" value="0" />
		<param name="tx2En" value="0" />
		<param name="digitalCorrDisable" value="0" />
		<param name="tx2BackOff" value="0" />
		<param name="loopBackSelect" value="0" />
		<param name="tx0En" value="0" />
		<param name="baseProfileIndex" value="0" />
		<param name="ifLoopBackFreq" value="0" />
		<param name="bpmTx1On" value="0" />
		<param name="bpmTx2On" value="0" />
		<param name="paLoopBackFreq" value="2" />
		<param name="tx1En" value="0" />
		<param name="psTx0LoopBackFreq" value="0" />
		<param name="freqConst" value="77" />
		<param name="ps2PGAGainIndex" value="23" />
		<param name="busrtIndex" value="0" />
		<param name="tx1BackOff" value="0" />
		<param name="ps1PGAGainIndex" value="23" />
		<param name="tx0BackOff" value="0" />
		<param name="rxGain" value="30" />
		<param name="bpmTx2Off" value="0" />
		<param name="bpmTx0Off" value="0" />
		<param name="slopeConst" value="0" />
		<param name="bpmTx1Off" value="0" />
		<param name="bpmTx0On" value="0" />
	</apiname_loopbackburst_cfg>
	<apiname_analogmonenable_cfg>
		<param name="tx2BallBreakMonEna" value="0" />
		<param name="rxNoiseMonEna" value="1" />
		<param name="rxIFStageMonEna" value="1" />
		<param name="reservedMonEna" value="0" />
		<param name="tx0BPMMonEna" value="0" />
		<param name="rxIFASaturationMonEna" value="0" />
		<param name="internalGPADCSignalsMonEna" value="0" />
		<param name="tx0BallBreakMonEna" value="0" />
		<param name="synthFreqMonEna" value="0" />
		<param name="internalTX0SignalsMonEna" value="0" />
		<param name="rxGainPhaseMonEna" value="1" />
		<param name="internalRXSignalsMonEna" value="0" />
		<param name="tx1PowerMonEna" value="0" />
		<param name="rxSigImgBandMonEna" value="0" />
		<param name="temperatureMonEna" value="1" />
		<param name="internalTX2SignalsMonEna" value="0" />
		<param name="txGainPhaseMonEna" value="0" />
		<param name="internalTX1SignalsMonEna" value="0" />
		<param name="tx1BPMMonEna" value="0" />
		<param name="tx2BPMMonEna" value="0" />
		<param name="pllControlVolMonEna" value="0" />
		<param name="tx0PowerMonEna" value="0" />
		<param name="externalAnalogSignalsMonEna" value="0" />
		<param name="tx2PowerMonEna" value="0" />
		<param name="tx1BallBreakMonEna" value="0" />
		<param name="rxMixerInputPowerMonEna" value="0" />
		<param name="dccClockFreqMonEna" value="0" />
		<param name="internalPMCLKLOSignalsMonEna" value="0" />
	</apiname_analogmonenable_cfg>
	<apiname_tx0ballbreak_cfg>
		<param name="tx0ReflCoeffMagThreshold" value="-9" />
		<param name="tx0BallBreakMonReportingMode" value="0" />
	</apiname_tx0ballbreak_cfg>
	<apiname_tx1ballbreak_cfg>
		<param name="tx1BallBreakMonReportingMode" value="0" />
		<param name="tx1ReflCoeffMagThreshold" value="-9" />
	</apiname_tx1ballbreak_cfg>
	<apiname_tx2ballbreak_cfg>
		<param name="tx2BallBreakMonReportingMode" value="0" />
		<param name="tx2ReflCoeffMagThreshold" value="0" />
	</apiname_tx2ballbreak_cfg>
	<apiname_tx0powermon_cfg>
		<param name="tx0PowerRF2" value="1" />
		<param name="tx0PwAbsErrThreshold" value="1" />
		<param name="tx0PowerReportingMode" value="0" />
		<param name="tx0PwFlatnessThreshold" value="0" />
		<param name="tx0PwrMonProfileIndex" value="0" />
		<param name="tx0PowerRF3" value="1" />
		<param name="tx0PowerRF1" value="1" />
	</apiname_tx0powermon_cfg>
	<apiname_tx1powermon_cfg>
		<param name="tx1PowerReportingMode" value="0" />
		<param name="tx1PwrMonProfileIndex" value="0" />
		<param name="tx1PwFlatnessThreshold" value="0" />
		<param name="tx1PowerRF1" value="1" />
		<param name="tx1PowerRF2" value="1" />
		<param name="tx1PwAbsErrThreshold" value="1" />
		<param name="tx1PowerRF3" value="1" />
	</apiname_tx1powermon_cfg>
	<apiname_tx2powermon_cfg>
		<param name="tx2PwAbsErrThreshold" value="1" />
		<param name="tx2PwFlatnessThreshold" value="0" />
		<param name="tx2PowerRF3" value="1" />
		<param name="tx2PwrMonProfileIndex" value="0" />
		<param name="tx2PowerRF2" value="1" />
		<param name="tx2PowerReportingMode" value="0" />
		<param name="tx2PowerRF1" value="1" />
	</apiname_tx2powermon_cfg>
	<apiname_tx0bpmmon_cfg>
		<param name="tx0BPMPhaseMonErrorThreshold" value="0" />
		<param name="tx0BPMPhaseMonReportMode" value="0" />
		<param name="tx0BPMMonRx2" value="1" />
		<param name="tx0BPMMonRx0" value="1" />
		<param name="tx0BPMMonRx3" value="1" />
		<param name="tx0BPMMonRx1" value="1" />
		<param name="tx0BPMPhaseMonProfileIndex" value="0" />
		<param name="tx0BPMAmplitudeMonErrorThreshold" value="0" />
	</apiname_tx0bpmmon_cfg>
	<apiname_tx1bpmmon_cfg>
		<param name="tx1BPMMonRx3" value="1" />
		<param name="tx1BPMMonRx1" value="1" />
		<param name="tx1BPMPhaseMonProfileIndex" value="0" />
		<param name="tx1BPMAmplitudeMonErrorThreshold" value="0" />
		<param name="tx1BPMPhaseMonReportMode" value="0" />
		<param name="tx1BPMMonRx2" value="1" />
		<param name="tx1BPMMonRx0" value="1" />
		<param name="tx1BPMPhaseMonErrorThreshold" value="0" />
	</apiname_tx1bpmmon_cfg>
	<apiname_tx2bpmmon_cfg>
		<param name="tx2BPMPhaseMonErrorThreshold" value="0" />
		<param name="tx2BPMPhaseMonReportMode" value="0" />
		<param name="tx2BPMMonRx1" value="1" />
		<param name="tx2BPMPhaseMonProfileIndex" value="0" />
		<param name="tx2BPMMonRx3" value="1" />
		<param name="tx2BPMMonRx2" value="1" />
		<param name="tx2BPMMonRx0" value="1" />
		<param name="tx2BPMAmplitudeMonErrorThreshold" value="0" />
	</apiname_tx2bpmmon_cfg>
	<apiname_txgainphasemismatchmon_cfg>
		<param name="rf3TX2TXGainPhaseMismatchOffVal" value="0" />
		<param name="txGainPhaseMismatchMonRx3" value="1" />
		<param name="txGainPhaseMismatchMonRx2" value="1" />
		<param name="txGainPhaseMismatchMonRx1" value="1" />
		<param name="txGainPhaseMismatchMonRx0" value="1" />
		<param name="rf3TX2TXPhaseMismatchOffVal" value="0" />
		<param name="rf2TX2TXGainPhaseMismatchOffVal" value="0" />
		<param name="rf1TX1TXGainPhaseMismatchOffVal" value="0" />
		<param name="rf2TX2TXPhaseMismatchOffVal" value="0" />
		<param name="txGainPhaseMismacthMonTxPhaseMismatchThreshold" value="0" />
		<param name="rf1TX0TXPhaseMismatchOffVal" value="0" />
		<param name="rf2TXGainPhaseMismatchMonBitMask" value="1" />
		<param name="txGainPhaseMismacthMonTxGainMismatchThreshold" value="0" />
		<param name="rf1TX1TXPhaseMismatchOffVal" value="0" />
		<param name="rf2TX0TXGainPhaseMismatchOffVal" value="0" />
		<param name="rf3TXGainPhaseMismatchMonBitMask" value="1" />
		<param name="rf3TX1TXGainPhaseMismatchOffVal" value="0" />
		<param name="rf3TX1TXPhaseMismatchOffVal" value="0" />
		<param name="rf2TX1TXPhaseMismatchOffVal" value="0" />
		<param name="rf2TX1TXGainPhaseMismatchOffVal" value="0" />
		<param name="rf1TX2TXGainPhaseMismatchOffVal" value="0" />
		<param name="rf3TX0TXPhaseMismatchOffVal" value="0" />
		<param name="rf1TXGainPhaseMismatchMonBitMask" value="1" />
		<param name="rf1TX2TXPhaseMismatchOffVal" value="0" />
		<param name="rf3TX0TXGainPhaseMismatchOffVal" value="0" />
		<param name="txGainPhaseMismacthMonReportingMode" value="0" />
		<param name="tx1GainPhaseMismatchMon" value="0" />
		<param name="tx0GainPhaseMismatchMon" value="0" />
		<param name="txGainPhaseMismacthMonProfileIndex" value="0" />
		<param name="tx2GainPhaseMismatchMon" value="0" />
		<param name="rf2TX0TXPhaseMismatchOffVal" value="0" />
		<param name="rf1TX0TXGainPhaseMismatchOffVal" value="0" />
	</apiname_txgainphasemismatchmon_cfg>
	<apiname_analogfaultinjection_cfg>
		<param name="rxIFStageRx2" value="0" />
		<param name="txGainInvTx2BPMVal" value="0" />
		<param name="rxPhaseInvRx0" value="0" />
		<param name="rxLOAmpRx2Rx3" value="0" />
		<param name="txGainInvTx1BPMVal" value="0" />
		<param name="rxHighNoiseRx2" value="0" />
		<param name="rxHighNoiseRx1" value="0" />
		<param name="txLOAmpTx2" value="0" />
		<param name="ldoRxLODistFault" value="0" />
		<param name="rxPhaseInvRx2" value="0" />
		<param name="rxGainDropRx1" value="0" />
		<param name="rxGainDropRx0" value="0" />
		<param name="rxHighNoiseRx3" value="0" />
		<param name="gpadcIntSigMon" value="0" />
		<param name="txGainInvTxFault" value="0" />
		<param name="rxGainDropRx3" value="0" />
		<param name="txLOAmpTx0Tx1" value="0" />
		<param name="txGainInvTx0BPMVal" value="0" />
		<param name="txGainDropTx1" value="0" />
		<param name="txGainDropTx0" value="0" />
		<param name="rxIFStageRx1" value="0" />
		<param name="txGainDropTx2" value="0" />
		<param name="rxGainDropRx2" value="0" />
		<param name="rxIFStageRx3" value="0" />
		<param name="rxLOAmpRx0Rx1" value="0" />
		<param name="synthFreqMonOffset" value="0" />
		<param name="rxHighNoiseRx0" value="0" />
		<param name="rxIFStageRx0" value="0" />
		<param name="synthVCOOpenLoop" value="0" />
		<param name="extAnaSigMon" value="0" />
		<param name="rxPhaseInvRx1" value="0" />
		<param name="gpadcClkFreqFault" value="0" />
		<param name="rxPhaseInvRx3" value="0" />
	</apiname_analogfaultinjection_cfg>
	<apiname_rxgainphasemon_cfg>
		<param name="rf3RX0RXPhaseMismatchOffVal" value="0" />
		<param name="rf3RX1RXPhaseMismatchOffVal" value="0" />
		<param name="rf3RX2RXGainMismatchOffVal" value="0" />
		<param name="rf2RX3RXGainMismatchOffVal" value="0" />
		<param name="rxGainPhaseReprotingMode" value="0" />
		<param name="rf1RX3RXGainMismatchOffVal" value="0" />
		<param name="rf1RX2RXPhaseMismatchOffVal" value="0" />
		<param name="rf2RX1RXGainMismatchOffVal" value="0" />
		<param name="rxPhaseMismatchThreshold" value="0" />
		<param name="rf1RX1RXGainMismatchOffVal" value="0" />
		<param name="rf2RX2RXPhaseMismatchOffVal" value="0" />
		<param name="rf2RX3RXPhaseMismatchOffVal" value="0" />
		<param name="rf2RX2RXGainMismatchOffVal" value="0" />
		<param name="rf2RX0RXGainMismatchOffVal" value="0" />
		<param name="rf2RXGainPhaseMonBitMask" value="1" />
		<param name="rf1RX0RXGainMismatchOffVal" value="0" />
		<param name="rf1RXGainPhaseMonBitMask" value="1" />
		<param name="rxGainFlatnessErrThreshold" value="0" />
		<param name="rxGainMismatchThresholds" value="0" />
		<param name="rf1RX0RXPhaseMismatchOffVal" value="0" />
		<param name="rf3RX2RXPhaseMismatchOffVal" value="0" />
		<param name="rf1RX2RXGainMismatchOffVal" value="0" />
		<param name="rf1RX1RXPhaseMismatchOffVal" value="0" />
		<param name="rf3RX3RXPhaseMismatchOffVal" value="0" />
		<param name="rf3RX3RXGainMismatchOffVal" value="0" />
		<param name="rf2RX0RXPhaseMismatchOffVal" value="0" />
		<param name="rf2RX1RXPhaseMismatchOffVal" value="0" />
		<param name="rxGainPhaseMonTxSelect" value="0" />
		<param name="rxGainPhaseMonProfileIndex" value="0" />
		<param name="rf3RX0RXGainMismatchOffVal" value="0" />
		<param name="rxGainPhaseAbsErrThreshold" value="0" />
		<param name="rf3RXGainPhaseMonBitMask" value="1" />
		<param name="rf1RX3RXPhaseMismatchOffVal" value="0" />
		<param name="rf3RX1RXGainMismatchOffVal" value="0" />
	</apiname_rxgainphasemon_cfg>
	<apiname_rxnoisefiguremon_cfg>
		<param name="rf1RXNoiseMon" value="1" />
		<param name="rxNoiseFigureThreshold" value="0" />
		<param name="rf3RXNoiseMon" value="1" />
		<param name="rf2RXNoiseMon" value="1" />
		<param name="rxNoiseFigureReportingMode" value="0" />
		<param name="rxNoiseMonProfileIndex" value="0" />
	</apiname_rxnoisefiguremon_cfg>
	<apiname_rxifstagemon_cfg>
		<param name="rxIFStageReportingMode" value="0" />
		<param name="rxIFStageMonProfileIndex" value="0" />
		<param name="rxIFStageLPFCuttoffFreqErrThreshold" value="0" />
		<param name="rxIFStageHPFCuttoffFreqErrThreshold" value="0" />
		<param name="rxIFStageIFAGainErrThreshold" value="0" />
	</apiname_rxifstagemon_cfg>
	<apiname_rxsaturationdetectormon_cfg>
		<param name="rxSatDetectorMonSatMonNumSlice" value="63" />
		<param name="rxSatDetectorSatMonSelect" value="1" />
		<param name="rxSatDetectorMonSatMonRxChannelMask" value="0" />
		<param name="rxSatDetectorMonPriTimeSliceDuration" value="0.800000011920929" />
		<param name="rxSatDetectorMonProfileIndex" value="0" />
	</apiname_rxsaturationdetectormon_cfg>
	<apiname_rxsignalandimagemon_cfg>
		<param name="sigImgMonNumSlice" value="63" />
		<param name="sigImgMonPriTimeSliceNumSamples" value="8" />
		<param name="sigImgMonProfileIndex" value="0" />
	</apiname_rxsignalandimagemon_cfg>
	<apiname_rxmixerinputpowermon_cfg>
		<param name="rxMixerIpPowMonMinThresholds" value="0" />
		<param name="rxMixerIpPowMonProfielIdnex" value="0" />
		<param name="rxMixerIpPowMonMaxThresholds" value="0" />
		<param name="rxMixerIpPowMonReportingMode" value="0" />
		<param name="rxMixerIpPowMonTx2Ena" value="0" />
		<param name="rxMixerIpPowMonTx0Ena" value="0" />
		<param name="rxMixerIpPowMonTx1Ena" value="0" />
	</apiname_rxmixerinputpowermon_cfg>
	<apiname_rxtemperaturemon_cfg>
		<param name="tempMonTempDiffThresh" value="0" />
		<param name="tempMonDigTempThreshMin" value="0" />
		<param name="tempMonDigTempThreshMax" value="0" />
		<param name="tempMonAnaTempThreshMax" value="0" />
		<param name="tempMonAnaTempThreshMin" value="0" />
		<param name="tempMonReportingMode" value="0" />
	</apiname_rxtemperaturemon_cfg>
	<apiname_rxsynthfreqerrormon_cfg>
		<param name="synthFrequencyMonStartTime" value="2.0" />
		<param name="synthFrequencyMonReportingMode" value="0" />
		<param name="synthFrequencyProfileIndex" value="0" />
		<param name="synthFrequencyMonFreqErrorThreshold" value="4000" />
	</apiname_rxsynthfreqerrormon_cfg>
	<apiname_rxextanalogsignalmon_cfg>
		<param name="extAnalogSigMonSigIPEnaAnaTest4" value="0" />
		<param name="extAnalogSigMonSigThresholdMinAnaTest3" value="0" />
		<param name="extAnalogSigMonSigThresholdMaxAnaTest2" value="0" />
		<param name="extAnalogSigMonSigSettlingTimeAnaTest4" value="0" />
		<param name="extAnalogSigMonSigBufEnaAnaTest2" value="0" />
		<param name="extAnalogSigMonSigThresholdMaxAnaVSense" value="0" />
		<param name="extAnalogSigMonSigThresholdMinAnaTest4" value="0" />
		<param name="extAnalogSigMonSigThresholdMinAnaVSense" value="0" />
		<param name="extAnalogSigMonSigSettlingTimeAnaVSense" value="0" />
		<param name="extAnalogSigMonSigSettlingTimeAnaTest2" value="0" />
		<param name="extAnalogSigMonSigBufEnaAnaTest3" value="0" />
		<param name="extAnalogSigMonSigThresholdMaxAnaMux" value="0" />
		<param name="extAnalogSigMonSigBufEnaAnaMux" value="0" />
		<param name="extAnalogSigMonSigThresholdMaxAnaTest4" value="0" />
		<param name="extAnalogSigMonSigThresholdMinAnaTest2" value="0" />
		<param name="extAnalogSigMonSigThresholdMaxAnaTest1" value="0" />
		<param name="extAnalogSigMonSigThresholdMinAnaMux" value="0" />
		<param name="extAnalogSigMonReportingMode" value="0" />
		<param name="extAnalogSigMonSigBufEnaAnaTest4" value="0" />
		<param name="extAnalogSigMonSigSettlingTimeAnaTest3" value="0" />
		<param name="extAnalogSigMonSigSettlingTimeAnaMux" value="0" />
		<param name="extAnalogSigMonSigIPEnaAnaTest3" value="0" />
		<param name="extAnalogSigMonSigBufEnaAnaTest1" value="0" />
		<param name="extAnalogSigMonSigThresholdMaxAnaTest3" value="0" />
		<param name="extAnalogSigMonSigIPEnaVSense" value="0" />
		<param name="extAnalogSigMonSigIPEnaAnaMux" value="0" />
		<param name="extAnalogSigMonSigIPEnaAnaTest1" value="0" />
		<param name="extAnalogSigMonSigIPEnaAnaTest2" value="0" />
		<param name="extAnalogSigMonSigSettlingTimeAnaTest1" value="0" />
		<param name="extAnalogSigMonSigThresholdMinAnaTest1" value="0" />
	</apiname_rxextanalogsignalmon_cfg>
	<apiname_tx0intanalogsignalmon_cfg>
		<param name="tx0IntAnalogSigMonReportingMode" value="0" />
		<param name="tx0IntAnalogSigMonProfileIndex" value="0" />
	</apiname_tx0intanalogsignalmon_cfg>
	<apiname_tx1intanalogsignalmon_cfg>
		<param name="tx1IntAnalogSigMonReportingMode" value="0" />
		<param name="tx1IntAnalogSigMonProfileIndex" value="0" />
	</apiname_tx1intanalogsignalmon_cfg>
	<apiname_tx2intanalogsignalmon_cfg>
		<param name="tx2IntAnalogSigMonReportingMode" value="0" />
		<param name="tx2IntAnalogSigMonProfileIndex" value="0" />
	</apiname_tx2intanalogsignalmon_cfg>
	<apiname_rxintanalogsignalmon_cfg>
		<param name="rxIntAnalogSigMonProfileIndex" value="0" />
		<param name="rxIntAnalogSigMonReportingMode" value="0" />
	</apiname_rxintanalogsignalmon_cfg>
	<apiname_pmclklointanalogsignalmon_cfg>
		<param name="pmCLKLOIntAnalogSigMonReportingMode" value="0" />
		<param name="pmCLKLOIntAnalogSigMonProfileIndex" value="0" />
	</apiname_pmclklointanalogsignalmon_cfg>
	<apiname_gpadcintanalogsignalmon_cfg>
		<param name="gpadcIntAnalogSigMonReportingMode" value="0" />
	</apiname_gpadcintanalogsignalmon_cfg>
	<apiname_pllcontrolvoltagemon_cfg>
		<param name="pllCtlVolMonSynthVCO2VolControl" value="0" />
		<param name="pllCtlVolMonReportingMode" value="0" />
		<param name="pllCtlVolMonSynthVCO1VolControl" value="0" />
		<param name="pllCtlVolMonAPLLVctl" value="0" />
	</apiname_pllcontrolvoltagemon_cfg>
	<apiname_dccmon_cfg>
		<param name="dccMonClockPair4" value="0" />
		<param name="dccMonClockPair0" value="0" />
		<param name="dccMonClockPair5" value="0" />
		<param name="dccMonReportingMode" value="0" />
		<param name="dccMonClockPair1" value="0" />
		<param name="dccMonClockPair3" value="0" />
		<param name="dccMonClockPair2" value="0" />
	</apiname_dccmon_cfg>
</configuration>

over 5 years ago

0 Vivek Dham over 5 years ago

TI__Guru 58035 points

Hello Chenglin,

How exactly are they measuring the gain an NF? Are they feeding a CW tone and using the function in mmwave studio to compute the gain and NF?

Regards,

Vivek

0 Chenglin Cui over 5 years ago in reply to Vivek Dham

Prodigy 80 points

Hello Vivek,

No. The gain and NF is not measured. The RF Analog Monitoring function from RadarAPI is used to get the gain and NF report.

0 Vivek Dham over 5 years ago in reply to Chenglin Cui

TI__Guru 58035 points

Hello Chenglin,

The internal computation of the gain and NF depends on the accuracy of the signal amplitude entered at the LNA input. If there is an error in that , the gain and NF reported also will have the same error. How you are accurately determining the signal amplitude at the LNA input?

Regards,

vivek

0 Chenglin Cui over 5 years ago in reply to Vivek Dham

Prodigy 80 points

Hi Vivek,

I cannot determine the amplitude of input signal to the LNA, I cannot control it from mmWave Studio.

According to the document below, the measurement is done by internal loopback.

The tx power is coupled to rx and detected by integrated power detector at LNA input.

Regards,

Chenglin

0 Vivek Dham over 5 years ago in reply to Chenglin Cui

TI__Guru 58035 points

Hello Chenglin,

My mistake, I thought you were using the NF and gain computation function in the mmwave studio below.

Can you share the snapshots of the phase noise measurement at the Tx o/p between the two boards? Also can you confirm if you are using 1V RF supply on your board , just like in the 1843BOOST EVM and you are configuring the RF LDO Bypass bits appropriately?

Regards,

Vivek

0 Chenglin Cui over 5 years ago in reply to Vivek Dham

Prodigy 80 points

Hello Vivek,

I can't see the picture you posted, is it Measure Gain and NF function using Sig gen?

I measured output spectrum to compare phase noise, the results are shown below.

Our board use 1V RF supply for both RF1 and RF2.

The LDO bypass setting is the same for both EVB and our board.

Regards,

Chenglin

0 Vivek Dham over 5 years ago in reply to Chenglin Cui

TI__Guru 58035 points

Hello Chenglin,

You had mentioned that the PN was 6dB worse at 100Khz offset. But in the figure below the PN at marker 2 ( ~300Khz offset ) is very similar on both the boards. Am I missing something?

Regards,

Vivek

0 Chenglin Cui over 4 years ago in reply to Vivek Dham

Prodigy 80 points

Hello Vivek,

Please check this result, I reduced the span.

Regards,

Chenglin

0 Vivek Dham over 4 years ago in reply to Chenglin Cui

TI__Guru 58035 points

Hello Chenglin,

Noise on the power supply (1.8V and 1V supply ) would show up as phase noise in the LO. So if your PCB supply is more noisy in those lower frequencies then its possible to see this difference.

Regards,

Vivek

0 Chenglin Cui over 4 years ago in reply to Vivek Dham

Prodigy 80 points

Hello Vivek,

Thank you for your reply.

We are working on the supply noise.

Best regards,

Chenglin

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AWR1843: Question about NF degradation