The part number you provided, "ADF4350BCPZ," corresponds to a product from Analog Devices. The ADF4350 is a wideband frequency synthesizer. It is often used in applications like communications, instrumentation, and high-frequency signal processing.
Package Type and Pin Count
The "BCPZ" suffix indicates a lead-free, RoHS-compliant package. Specifically, the ADF4350BCPZ comes in a 32-lead LFCSP (Lead Frame Chip Scale Package), which is a compact and thermally efficient package.
Pin Function Specifications
Here is a detailed list of the pin functions for the ADF4350BCPZ 32-pin package. This table will include each pin’s function, as per the datasheet.
Pin Number Pin Name Pin Function Description 1 VDD Power supply voltage input for internal logic circuits. Typically +5V. 2 GND Ground connection for the device. 3 REF Reference input pin for the PLL. Accepts a reference signal for the frequency synthesizer. 4 PFD_OUT Phase Frequency Detector output. Signals the phase difference between reference and feedback signals. 5 RSET External resistor input for setting the phase detector's charge pump current. 6 RF OUT Output signal from the frequency synthesizer. This provides the desired frequency output. 7 CP Charge pump output for external filtering. Responsible for generating current pulses. 8 VDD2 Second power supply input. Provides power to the output stage and high-frequency circuits. 9 AGND Analog ground for high-frequency analog circuits. 10 LD Lock detect output. Signals whether the PLL has achieved phase lock. 11 CLKIN Clock input pin. Can accept various clock sources to drive the PLL’s input. 12 MUXOUT Multiplexed output pin that can be configured to output various signals like the PLL lock state. 13 AVDD Analog power supply voltage for high-frequency analog circuits. 14 REF IN/OUT Bi-directional reference input/output for the PLL, used to feed or receive the reference signal. 15 SDIO Serial data input/output. Used for communication with the device via SPI. 16 SCLK Serial clock input for SPI communication. 17 LE Latch enable for controlling the latch state in serial communication. 18 /RESET Active low reset pin. When pulled low, it resets the PLL. 19 VDD3 Power supply for the internal circuitry. Typically +3.3V. 20 RFOUT2 Second RF output for additional frequency signals or applications. 21 GND Ground connection for the device. 22 GND Ground connection for the device. 23 VDD Power supply voltage input for internal logic circuits. Typically +5V. 24 RFOUT RF output from the frequency synthesizer. 25 GND Ground connection for the device. 26 RFOUT Output signal from the frequency synthesizer. This provides the desired frequency output. 27 AVDD Analog power supply for high-frequency analog circuits. 28 CP Charge pump output for external filtering. Responsible for generating current pulses. 29 PFD_OUT Phase Frequency Detector output. Signals the phase difference between reference and feedback signals. 30 VDD2 Second power supply input. Provides power to the output stage and high-frequency circuits. 31 RSET External resistor input for setting the phase detector's charge pump current. 32 GND Ground connection for the device.Commonly Asked Questions (FAQ)
Here are some frequently asked questions regarding the ADF4350BCPZ:
What is the ADF4350BCPZ used for? The ADF4350BCPZ is a wideband frequency synthesizer used in applications such as communications, instrumentation, and high-frequency signal generation.
How many pins does the ADF4350BCPZ have? The ADF4350BCPZ has 32 pins.
What package does the ADF4350BCPZ come in? It comes in a 32-lead LFCSP (Lead Frame Chip Scale Package).
What is the power supply voltage for the ADF4350BCPZ? The device typically operates at +5V for its logic circuits.
How can the PLL be reset on the ADF4350BCPZ? The device has a /RESET pin, which when pulled low, resets the PLL.
What is the role of the PFDOUT pin? The PFDOUT pin outputs the phase difference between the reference and feedback signals, used for PLL operation.
What is the RFOUT pin used for? The RFOUT pin is the frequency synthesizer's output that provides the desired RF signal.
What type of signal does the ADF4350BCPZ output? The device outputs a high-frequency RF signal, which can be used for communication or testing purposes.
What is the charge pump pin (CP) for? The CP pin provides a current pulse for external filtering, which helps in generating the PLL’s voltage-controlled oscillator (VCO).
What is the MUXOUT pin used for? The MUXOUT pin can be configured to output various signals, such as PLL lock detection or the output of the reference.
Can the ADF4350BCPZ be used with external clock sources? Yes, the CLKIN pin allows for the use of external clock sources for driving the PLL.
What type of communication does the ADF4350BCPZ support? The device supports SPI communication via the SDIO, SCLK, and LE pins.
What is the significance of the LD pin? The LD pin indicates whether the PLL has successfully locked onto the reference signal.
What are the ground pins for? The GND pins are for establishing a common ground reference for the device’s circuits.
Is the ADF4350BCPZ RoHS compliant? Yes, the ADF4350BCPZ is RoHS compliant, meaning it is free of hazardous substances like lead.
How does the reference signal enter the ADF4350BCPZ? The REF pin is the primary input for the reference signal used by the PLL.
How is the reference signal monitored on the ADF4350BCPZ? The REF IN/OUT pin can be used to both feed and monitor the reference signal.
What voltage does the ADF4350BCPZ operate with? The ADF4350BCPZ operates with a supply voltage of +5V for logic circuits and +3.3V for internal analog circuitry.
What type of output does the ADF4350BCPZ provide? The output is a wideband RF signal that can be used for various applications such as communication and testing.
What does the VDD2 pin power in the ADF4350BCPZ? The VDD2 pin powers the output stage and high-frequency circuits in the synthesizer.
These details should give you a comprehensive overview of the ADF4350BCPZ and its functionalities.