Features

* 4 -point frequency pre -scoring device

High -frequency work: 4GHz to 18GHz

* Integrated radio frequency decoupling capacitor

Low power consumption

* activation mode: 30 mAh

* Power -off mode: 7mAh

* Low phase noise: --150 dbc/hz

* Single DC power supply: 3.3 V, compatible with ADF4XXX PLL

* Temperature range: -40oc to+105oc

*

Small packaging: 3 mm × 3 mm LFCSP [ 123] Application

*

Frequency range expansion

*

Point -to -point radio

*[123 ] Vsat radio

* Communication testing equipment

General description

ADF5001 The preliminary frequency is a low noise, low, low, low Power and fixed radio frequency division can be used to divide up to 18GHz into a lower frequency that is suitable for input to PLL IC (such as ADF4156 or ADF4106). ADF5001 provides a function that divides 4. ADF5001 has a 3.3V power supply with a differential 100Ω radio frequency output, allowing differential radio frequency inputs of PLL such as ADF4156 and ADF4106 directly.

引脚配置和功能说明

典型性能特征

[123 ]

Evaluation board printing circuit board

The evaluation board has four connectors, as shown in Figure 8. RF input connector (J4) is a high -frequency precision -shaped memory alloy connector produced by Emerson. The connector is compatible with SMA/3.5 mm and 2.92 mm cables.

The evaluation board is powered by a power supply from 3.0V to 3.6V, and the power supply should be connected to the J1 SMA connector. The power supply can also be connected using T3 (VDDX) and T2 (GND) test points.

Differential radio frequency output is output through the J2 and J3 SMA connector. If only one of the output is used, the 50ΩsMA terminal should be used correctlyStop unused output.

The chip enable (CE) pin can be controlled using the T1 test point. If this function is not needed, the test point can keep the unconnected state.

PCB material accumulation

The evaluation committee was built with Rogers RO4003C materials (0.008 inches). The width of RF orbit is 0.015 inches. To obtain controlled 50Ω characteristic impedance. The complete PCB stack is shown in Figure 9.

Material list

Application circuit

ADF5001 can be connected by a single -ended or differential connection. To any integrated circuit of any simulation device PLL series. It is recommended to use differential connections to obtain the best performance and achieve maximum power transmission. The application circuit shown in FIG. 10 shows the ADF5001 used in the microwave 16GHz PLL ring. ADF5001 decomposes the 16GHz RF signal to 4GHz, and the latter is entered into ADF4156 PLL in a differential manner. The source filter topology of OP184 op amp is used to provide a wide -tone range that is usually required for microwave VCOs. OP184's positive input pin is biased towards half of the ADF4156 charge pump power supply (VP). Using a simple resistor separator can easily achieve this, ensure that enough is enough to go close to a pins of OP184, so that a single positive power supply is allowed to be used as the op amp. Alternatively, in order to ensure the performance of the clean bias voltage, you can use a low noise regulator like the ADP150 to directly supply the+power supply of the resistor network or the feet.

The size of the shape