0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/iio/frequency/adi,adf4350.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Analog Devices ADF4350/ADF4351 wideband synthesizer
0008
0009 maintainers:
0010 - Michael Hennerich <michael.hennerich@analog.com>
0011
0012 properties:
0013 compatible:
0014 enum:
0015 - adi,adf4350
0016 - adi,adf4351
0017
0018 reg:
0019 maxItems: 1
0020
0021 spi-max-frequency:
0022 maximum: 20000000
0023
0024 clocks:
0025 maxItems: 1
0026 description: Clock to provide CLKIN reference clock signal.
0027
0028 clock-names:
0029 const: clkin
0030
0031 gpios:
0032 maxItems: 1
0033 description: Lock detect GPIO.
0034
0035 adi,channel-spacing:
0036 $ref: /schemas/types.yaml#/definitions/uint32
0037 description:
0038 Channel spacing in Hz (influences MODULUS).
0039
0040 adi,power-up-frequency:
0041 $ref: /schemas/types.yaml#/definitions/uint32
0042 description:
0043 If set the PLL tunes to this frequency (in Hz) on driver probe.
0044
0045 adi,reference-div-factor:
0046 $ref: /schemas/types.yaml#/definitions/uint32
0047 description:
0048 If set the driver skips dynamic calculation and uses this default
0049 value instead.
0050
0051 adi,reference-doubler-enable:
0052 $ref: /schemas/types.yaml#/definitions/flag
0053 description: Enables reference doubler.
0054
0055 adi,reference-div2-enable:
0056 $ref: /schemas/types.yaml#/definitions/flag
0057 description: Enables reference divider.
0058
0059 adi,phase-detector-polarity-positive-enable:
0060 $ref: /schemas/types.yaml#/definitions/flag
0061 description: Enables positive phase detector polarity. Default negative.
0062
0063 adi,lock-detect-precision-6ns-enable:
0064 $ref: /schemas/types.yaml#/definitions/flag
0065 description: Enables 6ns lock detect precision. Default = 10ns.
0066
0067 adi,lock-detect-function-integer-n-enable:
0068 $ref: /schemas/types.yaml#/definitions/flag
0069 description:
0070 Enables lock detect for integer-N mode. Default = factional-N mode.
0071
0072 adi,charge-pump-current:
0073 $ref: /schemas/types.yaml#/definitions/uint32
0074 description: Charge pump current in mA. Default = 2500mA.
0075
0076 adi,muxout-select:
0077 $ref: /schemas/types.yaml#/definitions/uint32
0078 minimum: 0
0079 maximum: 6
0080 description: |
0081 On chip multiplexer output selection.
0082 Valid values for the multiplexer output are:
0083 0: Three-State Output (default)
0084 1: DVDD
0085 2: DGND
0086 3: R-Counter output
0087 4: N-Divider output
0088 5: Analog lock detect
0089 6: Digital lock detect
0090
0091 adi,low-spur-mode-enable:
0092 $ref: /schemas/types.yaml#/definitions/flag
0093 description: Enables low spur mode. Default = Low noise mode.
0094
0095 adi,cycle-slip-reduction-enable:
0096 $ref: /schemas/types.yaml#/definitions/flag
0097 description: Enables cycle slip reduction.
0098
0099 adi,charge-cancellation-enable:
0100 $ref: /schemas/types.yaml#/definitions/flag
0101 description:
0102 Enabled charge pump charge cancellation for integer-N modes.
0103
0104 adi,anti-backlash-3ns-enable:
0105 $ref: /schemas/types.yaml#/definitions/flag
0106 description:
0107 Enables 3ns antibacklash pulse width for integer-N modes.
0108
0109 adi,band-select-clock-mode-high-enable:
0110 $ref: /schemas/types.yaml#/definitions/flag
0111 description: Enables faster band selection logic.
0112
0113 adi,12bit-clk-divider:
0114 $ref: /schemas/types.yaml#/definitions/uint32
0115 description:
0116 Clock divider value used when adi,12bit-clkdiv-mode != 0
0117
0118 adi,clk-divider-mode:
0119 $ref: /schemas/types.yaml#/definitions/uint32
0120 enum: [0, 1, 2]
0121 description: |
0122 Valid values for the clkdiv mode are:
0123 0: Clock divider off (default)
0124 1: Fast lock enable
0125 2: Phase resync enable
0126
0127 adi,aux-output-enable:
0128 $ref: /schemas/types.yaml#/definitions/flag
0129 description: Enables auxiliary RF output.
0130
0131 adi,aux-output-fundamental-enable:
0132 $ref: /schemas/types.yaml#/definitions/flag
0133 description: |
0134 Selects fundamental VCO output on the auxiliary RF output.
0135 Default = Output of RF dividers.
0136
0137 adi,mute-till-lock-enable:
0138 $ref: /schemas/types.yaml#/definitions/flag
0139 description: Enables Mute-Till-Lock-Detect function.
0140
0141 adi,output-power:
0142 $ref: /schemas/types.yaml#/definitions/uint32
0143 enum: [0, 1, 2, 3]
0144 description: |
0145 Output power selection.
0146 Valid values for the power mode are:
0147 0: -4dBm (default)
0148 1: -1dBm
0149 2: +2dBm
0150 3: +5dBm
0151
0152 adi,aux-output-power:
0153 $ref: /schemas/types.yaml#/definitions/uint32
0154 enum: [0, 1, 2, 3]
0155 description: |
0156 Auxiliary output power selection.
0157 Valid values for the power mode are:
0158 0: -4dBm (default)
0159 1: -1dBm
0160 2: +2dBm
0161 3: +5dBm
0162
0163 additionalProperties: false
0164
0165 required:
0166 - compatible
0167 - reg
0168 - clocks
0169
0170 examples:
0171 - |
0172 spi {
0173 #address-cells = <1>;
0174 #size-cells = <0>;
0175
0176 pll@4 {
0177 compatible = "adi,adf4351";
0178 reg = <4>;
0179 spi-max-frequency = <10000000>;
0180 clocks = <&clk0_ad9523 9>;
0181 clock-names = "clkin";
0182 adi,channel-spacing = <10000>;
0183 adi,power-up-frequency = <2400000000>;
0184 adi,phase-detector-polarity-positive-enable;
0185 adi,charge-pump-current = <2500>;
0186 adi,output-power = <3>;
0187 adi,mute-till-lock-enable;
0188 };
0189 };
0190 ...
