ADF5610_Hotstart_unlock

Hello. Please tell me.

I’m using EVAL-ADF5610. REF=100MHz PDIVout=1565MHz.

 ・Attach the ADF5610 configuration file.

 ・Loop filter constants are described in PDF.

When started at 25 ° C, the LED on the evaluation board lights up to indicate LOCK.

However, when measured in a 50 ° C environment with the same settings, the LED is off and indicates unlock.

Is there a recommended value to solve this problem?

 This issue does not occur when REF = 50MHz

 Also, changing "LKD_ONESHOT_DURATION" does not improve this problem.

Best Regards.

PDF

ADF5610_software_settings_v0.1.9.txt
CheckBox: MagOffsetAutosetBox.Checked = True
CheckBox: WriteAllBox.Checked = True
CheckBox: RepeatSweepBox.Checked = False
RadioButton: ADF5610.Checked = True
RadioButton: SDPBSelector.Checked = False
RadioButton: SDPSSelector.Checked = True
ComboBox: VTuneResBox.SelectedIndex = 7
ComboBox: AutocalDisableBox.SelectedIndex = 0
ComboBox: ForceCurveBox.SelectedIndex = 0
ComboBox: VSPITrigBox.SelectedIndex = 0
ComboBox: FSM_VSPI_SelBox.SelectedIndex = 2
ComboBox: NFETBox.SelectedIndex = 0
ComboBox: PFETBox.SelectedIndex = 0
ComboBox: LDODriverBox.SelectedIndex = 1
ComboBox: AutomuxBox.SelectedIndex = 0
ComboBox: GPOTestDataBox.SelectedIndex = 0
ComboBox: GPOSelBox.SelectedIndex = 1
NumericUpDown: ChPerPFDBox.Value = 0
ComboBox: ForceCPUpBox.SelectedIndex = 0
ComboBox: ForceCPMidBox.SelectedIndex = 0
ComboBox: ForceCPDnBox.SelectedIndex = 0
ComboBox: CSPModeBox.SelectedIndex = 0
ComboBox: DivPulseWidthBox.SelectedIndex = 0
ComboBox: PDDnEnBox.SelectedIndex = 1
ComboBox: PDUpEnBox.SelectedIndex = 1
TextBox: HFRefDisplayBox.Text = Low Freq Ref     
ComboBox: _8GHzDiv2Box.SelectedIndex = 1
ComboBox: VCOBuffPresEnBox.SelectedIndex = 1
ComboBox: BiasEnBox.SelectedIndex = 1
ComboBox: PDEnBox.SelectedIndex = 1
ComboBox: CPEnBox.SelectedIndex = 1
ComboBox: RefBuffEnBox.SelectedIndex = 1
ComboBox: GPOPadEnBox.SelectedIndex = 1
ComboBox: VCOBuffEnBox.SelectedIndex = 1
ComboBox: AutoClkConfBox.SelectedIndex = 0
ComboBox: SDEnBox.SelectedIndex = 1
ComboBox: BypassFracBox.SelectedIndex = 0
ComboBox: SeedBox.SelectedIndex = 2
ComboBox: GPODriverOnBox.SelectedIndex = 0
ComboBox: VCOOnBox.SelectedIndex = 0
ComboBox: RefBuffOnBox.SelectedIndex = 0
ComboBox: CPOnBox.SelectedIndex = 0
ComboBox: PFDOnBox.SelectedIndex = 0
ComboBox: BiasOnBox.SelectedIndex = 0
ComboBox: ResetCP_SPIBox.SelectedIndex = 1
ComboBox: ResetCEPinBox.SelectedIndex = 0
NumericUpDown: ReadAddressBox.Value = 0
TextBox: ReadChipIDTextBox.Text = Read.val!
ComboBox: OffsetDownEn.SelectedIndex = 1
ComboBox: OffsetUpEn.SelectedIndex = 0
TextBox: OffsetMagLabel.Text = 635
NumericUpDown: OffsetMagBox.Value = 127
TextBox: ChargePumpDnCurrentGainNumberLabel.Text = 404.25
TextBox: ChargePumpUpCurrentGainNumberLabel.Text = 404.25
TextBox: ChargePumpUpGainNumberLabel.Text = 2540
TextBox: ChargePumpDnGainNumberLabel.Text = 2540
NumericUpDown: ChargePumpDnGainBox.Value = 127
NumericUpDown: ChargePumpUpGainBox.Value = 127
ComboBox: LDWindCountBox.SelectedIndex = 5
ComboBox: LDModeBox.SelectedIndex = 1
ComboBox: InternalLDEnBox.SelectedIndex = 1
ComboBox: LDWindowDurBox.SelectedIndex = 1
ComboBox: OneTryRelockBox.SelectedIndex = 1
ComboBox: LDDigTimerBox.SelectedIndex = 3
RadioButton: ADF_AutomaticRadio.Checked = True
RadioButton: ADF_ManualRadio.Checked = False
ComboBox: ADF_UseOtherxHzBox.SelectedIndex = 4
NumericUpDown: ADF_StepSizeOtherBox.Value = 1
TextBox: DivRatioDisplayBox.Text = 8
TextBox: DivEnDisplayBox.Text = Enabled
TextBox: IntFracDisplayBox.Text = Fractional-N Mode
TextBox: ADF_VCOFreqTextBox.Text = 0.0
TextBox: ADF_PFDBox.Text = 100
NumericUpDown: ADF_NINTBox.Value = 31
NumericUpDown: ADF_NFRACBox.Value = 5033164
TextBox: RFOutTextBox.Text = 12520.00000000
TextBox: DivOutFreqTextBox.Text = 1565.00000000
NumericUpDown: ADF_VCOFreqBox.Value = 6260
TextBox: ADF_ActualVCOoutputBox.Text = 6259.999990463
TextBox: ADF_VCOOutputFrequencyErrorBox.Text = -0.000009537
ComboBox: HFRefBox.SelectedIndex = 0
NumericUpDown: RdividerBox.Value = 1
NumericUpDown: RefFreqBox.Value = 100
NumericUpDown: VCODataBox.Value = 380
NumericUpDown: VCORegAddrBox.Value = 1
NumericUpDown: VCOIDBox.Value = 0
ComboBox: RFDivBox.SelectedIndex = 4
ComboBox: VCOEnBox.SelectedIndex = 0
ComboBox: PDDivBox.SelectedIndex = 1
ComboBox: DivOutPBox.SelectedIndex = 3
ComboBox: VCOBiasBox.SelectedIndex = 7
ComboBox: RFOutPowerBox.SelectedIndex = 0
NumericUpDown: CapsBox.Value = 0
ComboBox: CalBox.SelectedIndex = 0
TextBox: HopFBBox.Text = 5100
TextBox: HopFABox.Text = 5000
TextBox: HopCurrent.Text = 
TextBox: HopDelayBox.Text = 100
TextBox: SweepCurrent.Text = 
TextBox: SweepDelayBox.Text = 100
TextBox: SweepSpacingBox.Text = 1
TextBox: SweepStopBox.Text = 5010
TextBox: SweepStartBox.Text = 5000
ComboBox: AutoseedBox.SelectedIndex = 1
TextBox: VCOBusyReadbackTextBox.Text = Read.value!
TextBox: VCOBandTextBox.Text = Read.value!
TextBox: RawReg16ValTextBox.Text = N/A
TextBox: RawReg19ValTextBox.Text = N/A
TextBox: BISTReadbackTextBox.Text = Read.value!
TextBox: RawReg18ValTextBox.Text = N/A
TextBox: GPOReadbackTextBox.Text = Read.value!
TextBox: LockDetectReadBackTextBox.Text = Read.value!
TextBox: RawReg17ValTextBox.Text = N/A
TextBox: ErrPolReadbackTextBox.Text = Read.value!
TextBox: ErrMagReadbackTextBox.Text = Read.value!
NumericUpDown: GenericWriteRegSelectedRegBox.Value = 1
TextBox: GenericWriteRegHexAddrTextBox.Text = 0x1
TextBox: GenericWriteRegValToWriteTextBox.Text = 0
TextBox: GenericRegReadDecimalTextBox.Text = Read.val!
NumericUpDown: GenericReadRegReadingBox.Value = 1
TextBox: GenericReadRegHexValTextBox.Text = 0x1
TextBox: GenericRegReadTextBox.Text = Read.val!