AD9833BRMZ -REEL7 Detailed explanation of pin function specifications and circuit principle instructions（206 ）
The AD9833 BRMZ-REEL7 is a product from Analog Devices, a well-known manufacturer of integrated circuits. The AD9833 is a low- Power , programmable waveform generator (a DDS - Direct Digital Synthesizer), capable of generating sine, triangular, and square waves. It's often used in applications like signal generation, waveform testing, or modulation systems.
This model, AD9833BRMZ-REEL7 , is the reel version of the device, meaning it's typically sold in bulk for automated placement in PCB manufacturing. It comes in a 16-lead TSSOP (Thin Shrink Small Outline Package), which has a small footprint but retains full functionality.
Here’s a detailed breakdown of the AD9833BRMZ-REEL7's pin functions:
Pin Functions Table (AD9833BRMZ-REEL7)
Pin Number Pin Name Pin Type Pin Function 1 VDD Power Positive power supply voltage input (2.3V to 5.5V) 2 VSS Power Ground pin (connected to circuit ground) 3 FSYNC Input Frame synchronization input pin. Used to load data into the device. 4 SCK Input Serial Clock input pin. Provides the clock for the serial interface . 5 SDATA Input Serial data input pin. Data to be loaded into the registers is sent here. 6 SDIO Output Serial data output pin. Data can be read from the device through this pin. 7 RESET Input Device reset pin. Pull low to reset the device. 8 FSEL Input Frequency select input. Configures frequency register for the waveform output. 9 IOUT Output Output of the waveform generated by the DDS. Analog waveform signal. 10 PDN Input Power-down pin. When high, it puts the device into a low-power state. 11 VDD Power Another VDD pin (for redundancy or noise suppression). 12 MCLK Input Master clock input pin for frequency generation. 13 CLKin Input External clock input (optional). Can be used as an alternative clock source. 14 CLKin2 Input Alternative clock pin for synchronization purposes. 15 F0 Output Output of the frequency register. Used to select the waveform frequency. 16 VSS Power Ground pin (connected to circuit ground).Pin Function Specifications
VDD: Supplies the power to the internal circuitry of the AD9833. A stable voltage between 2.3V to 5.5V is required for proper operation. VSS: Acts as the ground reference for all internal operations and should be tied to the system ground. FSYNC: This pin is used to latch data into the device. It’s active low, meaning data is loaded when FSYNC is low. SCK: Serial Clock input. It synchronizes the data transfer between the external controller and the AD9833. The data bits are shifted on the rising edge of SCK. SDATA: The serial data input. It is used to send control data to the device in serial format. SDIO: The serial data output pin. This allows the AD9833 to send information or status updates back to the microcontroller or system. RESET: This pin, when pulled low, resets the AD9833 device, clearing its registers and bringing it into a known state. FSEL: This pin selects one of the frequency registers that control the waveform’s frequency. It's used in conjunction with the data loaded into the frequency registers to adjust the output frequency. IOUT: The output pin where the waveform generated by the AD9833 is available. The waveform can be a sine, triangular, or square wave, depending on the settings. PDN: When high, the AD9833 goes into a power-down mode, reducing its power consumption. This is used to save power when the device is not in use. MCLK: This input pin is where the external master clock is provided. This clock dictates the frequency resolution and waveform output rate. CLKin: An optional external clock input pin. It can be used in cases where the external clock source needs to be used instead of the internal MCLK. CLKin2: This is an additional clock input pin used for special clock synchronization applications. F0: This pin serves as the frequency output pin. It provides a signal that corresponds to the frequency register’s setting. VSS: Another ground pin, connected to the circuit's common ground.FAQ (Frequently Asked Questions) for AD9833BRMZ-REEL7
What is the operating voltage range for AD9833BRMZ-REEL7? The operating voltage range is between 2.3V and 5.5V for the AD9833BRMZ-REEL7. How can I reset the AD9833BRMZ-REEL7? The AD9833BRMZ-REEL7 can be reset by pulling the RESET pin low. What kind of clock source does the AD9833BRMZ-REEL7 require? The AD9833BRMZ-REEL7 requires a master clock (MCLK) for operation. This clock should be applied to the MCLK pin. Can I use an external clock with the AD9833BRMZ-REEL7? Yes, you can use an external clock by connecting it to the CLKin or CLKin2 pins. What is the role of the FSYNC pin? The FSYNC pin is used to latch data into the AD9833BRMZ-REEL7. It should be pulled low to enable data input. What types of waveforms can the AD9833BRMZ-REEL7 generate? The AD9833BRMZ-REEL7 can generate sine, triangle, and square waves. Can the AD9833BRMZ-REEL7 be powered down? Yes, by pulling the PDN pin high, you can put the device into power-down mode to reduce power consumption. What is the frequency resolution of AD9833BRMZ-REEL7? The frequency resolution depends on the master clock input and is governed by the internal registers. It can provide fine control over waveform frequencies. How do I change the waveform frequency? The waveform frequency can be controlled by writing to the frequency registers using the SDATA and FSYNC pins.What is the purpose of the FSEL pin?
The FSEL pin is used to select between different frequency registers, determining the output frequency of the waveform.Can I read back data from the AD9833BRMZ-REEL7?
Yes, you can read back data via the SDIO pin.How many bits of data can be sent to the AD9833BRMZ-REEL7?
Data is transferred to the device in a serial format, with each transfer depending on the selected register.What is the function of the IOUT pin?
The IOUT pin provides the generated waveform (sine, square, triangle) as an analog output.What is the function of the RESET pin?
The RESET pin clears all internal registers and resets the AD9833BRMZ-REEL7 to its initial state.Can the AD9833BRMZ-REEL7 output a DC signal?
The AD9833BRMZ-REEL7 is designed for AC waveforms and does not directly generate a DC signal.What is the package type of AD9833BRMZ-REEL7?
The AD9833BRMZ-REEL7 is in a 16-lead TSSOP (Thin Shrink Small Outline Package).What are the power supply requirements for the AD9833BRMZ-REEL7?
The power supply should provide a voltage between 2.3V and 5.5V, with the VSS pin connected to ground.How do I interface with the AD9833BRMZ-REEL7 from a microcontroller?
You interface through the SDATA, SCK, FSYNC, and RESET pins using SPI or a similar serial protocol.Can I synchronize multiple AD9833BRMZ-REEL7 devices?
Yes, by using the external clock and synchronization features, multiple AD9833BRMZ-REEL7 devices can be synchronized.What is the maximum output frequency of AD9833BRMZ-REEL7?
The maximum output frequency is determined by the master clock (MCLK) and internal registers. It can generate frequencies up to a few MHz depending on the clock input.I hope this helps with your understanding of the AD9833BRMZ-REEL7! Let me know if you need further details.
