Creating MIPI C-PHY and D-PHY Compatible Waves using ADATE334, a Dual Integrated DCL Device Capable of 2.3GHz High-Speed Operation
The ADATE334, a dual-channel automatic test equipment (ATE) solution, is designed to generate multilevel waveforms that are compatible with MIPI C-PHY and D-PHY standards. These physical layer interfaces are commonly used in camera, display, and mobile device applications.
The High Voltage Driver
The high voltage driver of the ADATE334 supports four active states: high (VIH), low (VIL), terminate mode (VIT), and a high impedance inhibit state. This variety of states allows for fine-tuning of signal integrity and reduces transmission line reflections, particularly when the driver is not actively terminating a line.
The Low Voltage Driver
The low voltage driver works in conjunction with the high voltage driver to provide precise signal amplitudes. It can generate signals ranging from 25mVpp to 600mVpp at data rates up to 4.6 Gbps in a 50Ω environment.
Key Features and Functionality
The ADATE334 performs pin electronics functions of driver, comparator, and active load (DCL), and features a four-quadrant per pin parametric measurement unit (PPMU). Dedicated 16-bit DACs with on-chip calibration registers provide all necessary DC levels for the ADATE334's operation.
The internal multiplexers in the ADATE334 are used to generate high voltage and low voltage driver control signals. These control signals, as shown in Tables 1 and 2, determine the state of the high voltage driver output and the state of the low voltage driver output, respectively.
The ADATE334 also utilizes internal high-speed multiplexers to map high-speed inputs. Its open circuit drive capability ranges from -1.5V to +7.0V, providing a wide range for various application needs.
Application and Usage
The combination of the high voltage and low voltage drivers in the ADATE334 enables automated test equipment (ATE) setups to generate MIPI C-PHY and D-PHY compatible signals essential for testing and validating camera, display, and mobile system interfaces. This makes the ADATE334 a valuable tool for high-speed consumer electronics and instrumentation contexts.
For more detailed information, please refer to the ADATE334 data sheet and functional block diagram.
[1] For a more comprehensive understanding of the ADATE334's capabilities and features, please consult the ADATE334 data sheet and functional block diagram.
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