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Name: DS90UB940NTNKDRQ1
Brand: Texas Instruments
SKU: DS90UB940NTNKDRQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments DS90UB940NTNKDRQ1

Part No.:: DS90UB940NTNKDRQ1

Manufacturer:: Texas Instruments

Package:: 64-WFQFN Exposed Pad

Datasheet:: DS90UB940NTNKDRQ1.pdf

Description:: INTERFACE

In Stock:: 3939

Quantity:: Add To Cart

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DS90UB940NTNKDRQ1 Specifications

Packaging:
Tape & Reel (TR)
Series:
Automotive, AEC-Q100
ProductStatus:
Active
Function:
Deserializer
DataRate:
3.36Gbps
InputType:
FPD-Link III, LVDS
OutputType:
CSI-2, MIPI
NumberofInputs:
2
NumberofOutputs:
5
Voltage-Supply:
1.14V ~ 1.26V, 3V ~ 3.6V
OperatingTemperature:
-40°C ~ 105°C (TA)
MountingType:
Surface Mount

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DS90UB940NTNKDRQ1 information

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DS90UB940NTNKDRQ1 Typical application Circuitry

DS90UB940NTNKDRQ1

The DS90UB940NTNKDRQ1 is a sophisticated automotive-grade serializer chip developed by Texas Instruments, designed to interface with high-definition cameras in automotive applications. This chip is part of TI's FPD-Link™ III family, specializing in the serialization of video data for transmission over a single differential pair. It's widely used in advanced driver-assistance systems (ADAS), rear-view and surround-view cameras, and automotive infotainment systems, offering high-speed data transmission with robust error handling and diagnostic capabilities.

Key Features and Specifications:

- High-Speed Data Transmission: Supports high-resolution video data transmission, making it ideal for HD cameras in automotive applications.

- FPD-Link™ III Interface: Utilizes FPD-Link III technology for reliable, high-bandwidth communication over long distances with minimal cabling.

- Automotive-Grade Reliability: Designed to meet the stringent requirements of automotive applications, including extended temperature ranges and vibration resistance.

- I2C Control Interface: Provides an I2C interface for configuration and control, allowing for dynamic adjustments to transmission settings and diagnostics.

- Advanced Diagnostics: Includes features for real-time diagnostics and error detection to ensure reliable operation in critical automotive safety applications.

Application Scenario: Rear-View Camera System in Vehicles

In this scenario, the DS90UB940NTNKDRQ1 is used in a vehicle's rear-view camera system, transmitting high-quality video data from the camera to the display unit located in the dashboard or rear-view mirror, enhancing parking assistance and safety.

Circuit Design Methodology:

1. Power Supply Connection (VDD, Pin 1; GND, Multiple Pins): Connect the VDD pin to a 3.3V power supply, ensuring stable operation. Ground connections should be made at all designated GND pins to the vehicle's chassis ground. Use decoupling capacitors near the VDD pin to filter out noise.

2. Camera Interface (Fp, Fn, Pins for LVCMOS Input): Interface the rear-view camera's LVCMOS video output pins directly with the DS90UB940NTNKDRQ1's Fp and Fn differential input pins to capture the video signal.

3. Serializer Configuration (I2C_SCL, I2C_SDA, Pins for I2C Interface): Utilize the I2C_SCL (Serial Clock) and I2C_SDA (Serial Data) pins to connect to the vehicle's central control unit for dynamic configuration, diagnostics, and control of the serializer.

4. Differential Transmission Output (OUT+, OUT-, Differential Output Pins): Connect the differential transmission output pins (OUT+, OUT-) to the corresponding input pins on the deserializer module located near the display unit to ensure robust, high-speed video data transmission.

5. Control and Diagnostics (GPIO, Various Pins): Utilize the General Purpose Input/Output (GPIO) pins for additional control signals or diagnostics as required by the system design, providing flexibility for custom functionalities.

Design Considerations:

- Signal Integrity: Ensure the differential pairs (Fp, Fn and OUT+, OUT-) are properly impedance-matched and routed with minimal length discrepancies to maintain signal integrity, especially important for high-speed data transmission.

- Power Supply Stability: Given the automotive environment, the power supply should be designed with adequate filtering and surge protection to handle start-stop events and voltage fluctuations.

- EMI and EMC Compliance: Implement appropriate shielding and filtering measures to mitigate electromagnetic interference (EMI) and ensure electromagnetic compatibility (EMC), crucial in automotive applications.

- Thermal Management: Consider the DS90UB940NTNKDRQ1's thermal dissipation requirements, especially when installed in tight spaces or near heat-generating components, to maintain operational reliability.

- I2C Bus Design: Pay attention to the I2C bus layout, ensuring pull-up resistors are correctly sized and the bus length is optimized to prevent communication errors during configuration or diagnostics.

Incorporating the DS90UB940NTNKDRQ1 into a rear-view camera system demonstrates its efficacy in handling real-time, high-definition video transmission in vehicles, highlighting its pivotal role in enhancing automotive safety and convenience. This application showcases the chip's capability to deliver seamless video communication, ensuring drivers have a clear and immediate view of their surroundings.

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

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