ADUM1100ARZ Detailed explanation of pin function specifications and circuit principle instructions
The part number ADUM1100ARZ is a product manufactured by Analog Devices. It is an isolated USB transceiver that provides high-performance signal isolation in applications where USB communication is required across an isolation barrier. The ADUM1100ARZ uses iCoupler® technology, which enables it to provide robust isolation and fast communication.
Package and Pinout Specifications:
The ADUM1100ARZ comes in the SOIC-16 (Small Outline Integrated Circuit, 16 pins) package.
Pin Function Specifications:
Below is a detailed description of the 16 pins and their functions:
Pin Number Pin Name Pin Type Pin Function Description 1 VDDIO Power Input power for the logic side of the isolator. Typically 3.3V or 5V, depending on the system design. 2 D- Input/Output USB Data line (negative). This pin is part of the differential USB data signal pair. 3 D+ Input/Output USB Data line (positive). This pin is part of the differential USB data signal pair. 4 VSSIO Ground Ground connection for the logic side of the isolator. 5 VDD Power Input power for the isolated side of the isolator. Typically 5V or 3.3V, depending on system requirements. 6 VSS Ground Ground connection for the isolated side of the isolator. 7 RSTOUT Output Reset signal output. This pin is used to indicate the initialization or reset state of the device. 8 NC No Connection This pin is not connected to any internal circuitry and is reserved for mechanical or design flexibility. 9 NC No Connection This pin is not connected to any internal circuitry and is reserved for mechanical or design flexibility. 10 VCC Power Input power for the isolated side of the device, typically 3.3V or 5V. 11 GND Ground Ground connection for the isolated side of the device. 12 RDY Output Ready signal output. Indicates whether the device is ready for data transfer or communication. 13 I2C_SCL Input/Output I2C Clock line. Used for communication between the isolated device and the external microcontroller. 14 I2C_SDA Input/Output I2C Data line. Used for communication between the isolated device and the external microcontroller. 15 SEL Input Selection input. This pin is used to configure various internal parameters of the device. 16 I2C_VCC Power Power input for the I2C section of the device, typically 3.3V or 5V, depending on the system design.Circuit Principle:
The ADUM1100ARZ uses iCoupler® technology to provide electrical isolation between the USB side (the host or device side) and the isolated side (communication interface side). The D+ and D- pins transmit the USB differential signals, while the VDDIO and VSSIO pins power the logic side, and the VDD and VSS power the isolated side. The device operates by transferring USB data and control signals across the isolation barrier through high-speed transformers, ensuring robust signal integrity and minimizing EMI (electromagnetic interference).
FAQ:
Q: What is the operating voltage of the ADUM1100ARZ? A: The ADUM1100ARZ operates with supply voltages ranging from 3.3V to 5V, depending on the side of the isolation.
Q: How many pins does the ADUM1100ARZ have? A: The ADUM1100ARZ has 16 pins in its SOIC-16 package.
Q: What is the purpose of the RSTOUT pin on the ADUM1100ARZ? A: The RSTOUT pin is used to indicate the initialization or reset state of the device.
Q: Can I use the ADUM1100ARZ with 3.3V logic on the USB side? A: Yes, the ADUM1100ARZ supports both 3.3V and 5V logic on the USB side, allowing flexibility in system design.
Q: What does the RDY pin do on the ADUM1100ARZ? A: The RDY pin indicates the readiness of the device to transmit or receive data.
Q: Can I use the I2CSCL and I2CSDA pins for communication in my application? A: Yes, the I2CSCL and I2CSDA pins are provided for communication with an external microcontroller or system.
Q: How does the ADUM1100ARZ ensure USB data integrity across the isolation barrier? A: The ADUM1100ARZ uses iCoupler® technology to transfer data across the isolation barrier using high-speed transformers, ensuring signal integrity and reducing EMI.
Q: Is there a way to configure the ADUM1100ARZ's internal parameters? A: Yes, the SEL pin allows configuration of internal parameters according to your system needs.
Q: Does the ADUM1100ARZ provide a reset signal? A: Yes, the ADUM1100ARZ provides a RSTOUT pin, which outputs a reset signal during initialization.
Q: What is the difference between VDD and VDDIO on the ADUM1100ARZ? A: VDD powers the isolated side of the device, while VDDIO powers the logic side.
Q: Can I connect VDDIO and VDD to the same voltage source? A: No, VDD and VDDIO should be powered independently for isolation purposes.
Q: How is the ADUM1100ARZ used in a USB isolation application? A: The ADUM1100ARZ isolates the USB data signals and allows for safe communication between a host and an isolated device.
Q: What is the maximum data rate for the ADUM1100ARZ? A: The ADUM1100ARZ supports USB 2.0 data rates up to 480 Mbps.
Q: Is the ADUM1100ARZ compliant with USB 2.0 specifications? A: Yes, the ADUM1100ARZ is fully compliant with USB 2.0 standards for data transfer.
Q: How does the ADUM1100ARZ manage power consumption? A: The ADUM1100ARZ is designed to operate efficiently with low power consumption while maintaining high-speed data transfer across the isolation barrier.
Q: Can I use the NC pins in my circuit? A: No, the NC pins are not internally connected and should not be used in the circuit.
Q: Does the ADUM1100ARZ support full-speed USB? A: Yes, the ADUM1100ARZ supports both full-speed (12 Mbps) and high-speed (480 Mbps) USB communication.
Q: What type of device is best suited for the ADUM1100ARZ? A: The ADUM1100ARZ is ideal for applications requiring USB isolation, such as industrial control systems, medical devices, and other sensitive applications where electrical isolation is necessary.
Q: Is the ADUM1100ARZ suitable for high-frequency applications? A: Yes, the ADUM1100ARZ is designed to operate at high speeds with minimal signal distortion and is suitable for high-frequency USB data transmission.
Q: Can the ADUM1100ARZ be used in an I2C-based system? A: Yes, the I2CSCL and I2CSDA pins allow the ADUM1100ARZ to communicate in an I2C-based system for additional control and monitoring.
