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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/frequency/adi,adf4350.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices ADF4350/ADF4351 wideband synthesizer
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
properties:
compatible:
enum:
- adi,adf4350
- adi,adf4351
reg:
maxItems: 1
spi-max-frequency:
maximum: 20000000
clocks:
maxItems: 1
description: Clock to provide CLKIN reference clock signal.
clock-names:
const: clkin
gpios:
maxItems: 1
description: Lock detect GPIO.
adi,channel-spacing:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Channel spacing in Hz (influences MODULUS).
adi,power-up-frequency:
$ref: /schemas/types.yaml#/definitions/uint32
description:
If set the PLL tunes to this frequency (in Hz) on driver probe.
adi,reference-div-factor:
$ref: /schemas/types.yaml#/definitions/uint32
description:
If set the driver skips dynamic calculation and uses this default
value instead.
adi,reference-doubler-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables reference doubler.
adi,reference-div2-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables reference divider.
adi,phase-detector-polarity-positive-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables positive phase detector polarity. Default negative.
adi,lock-detect-precision-6ns-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables 6ns lock detect precision. Default = 10ns.
adi,lock-detect-function-integer-n-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enables lock detect for integer-N mode. Default = factional-N mode.
adi,charge-pump-current:
$ref: /schemas/types.yaml#/definitions/uint32
description: Charge pump current in mA. Default = 2500mA.
adi,muxout-select:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 6
description: |
On chip multiplexer output selection.
Valid values for the multiplexer output are:
0: Three-State Output (default)
1: DVDD
2: DGND
3: R-Counter output
4: N-Divider output
5: Analog lock detect
6: Digital lock detect
adi,low-spur-mode-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables low spur mode. Default = Low noise mode.
adi,cycle-slip-reduction-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables cycle slip reduction.
adi,charge-cancellation-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enabled charge pump charge cancellation for integer-N modes.
adi,anti-backlash-3ns-enable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enables 3ns antibacklash pulse width for integer-N modes.
adi,band-select-clock-mode-high-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables faster band selection logic.
adi,12bit-clk-divider:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Clock divider value used when adi,12bit-clkdiv-mode != 0
adi,clk-divider-mode:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2]
description: |
Valid values for the clkdiv mode are:
0: Clock divider off (default)
1: Fast lock enable
2: Phase resync enable
adi,aux-output-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables auxiliary RF output.
adi,aux-output-fundamental-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: |
Selects fundamental VCO output on the auxiliary RF output.
Default = Output of RF dividers.
adi,mute-till-lock-enable:
$ref: /schemas/types.yaml#/definitions/flag
description: Enables Mute-Till-Lock-Detect function.
adi,output-power:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3]
description: |
Output power selection.
Valid values for the power mode are:
0: -4dBm (default)
1: -1dBm
2: +2dBm
3: +5dBm
adi,aux-output-power:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3]
description: |
Auxiliary output power selection.
Valid values for the power mode are:
0: -4dBm (default)
1: -1dBm
2: +2dBm
3: +5dBm
additionalProperties: false
required:
- compatible
- reg
- clocks
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
pll@4 {
compatible = "adi,adf4351";
reg = <4>;
spi-max-frequency = <10000000>;
clocks = <&clk0_ad9523 9>;
clock-names = "clkin";
adi,channel-spacing = <10000>;
adi,power-up-frequency = <2400000000>;
adi,phase-detector-polarity-positive-enable;
adi,charge-pump-current = <2500>;
adi,output-power = <3>;
adi,mute-till-lock-enable;
};
};
...
|
