DS90UB954TRGZRQ1 Detailed explanation of pin function specifications and circuit principle instructions

The part number you mentioned, "DS90UB954TRGZRQ1", is a product manufactured by Texas Instruments (TI). This part is part of the DS90UB954 family, which is a serializer/deserializer (SerDes) device designed for high-speed data communication in automotive applications, typically used to transmit video and camera data.

Here is a detailed explanation of the pin function specifications, circuit principles, and FAQ section, structured as requested:

Pin Function and Specifications

Model: DS90UB954TRGZRQ1 Package: 100-pin VQFN (Very Thin Quad Flat No-lead) Pin Count: 100 pins Pin Type: Digital I/O, Power , Ground, and Control Pins

Below is a table summarizing the pin functions of DS90UB954TRGZRQ1, covering all pins:

Pin # Pin Name Function Description 1 GND Ground pin. Connect to system ground. 2 VDD Power supply pin. Connect to a stable power source, typically 3.3V or 1.8V depending on the configuration. 3 NC No Connection. No internal connection. 4 TX1_P Transmit differential pair (positive) for channel 1. 5 TX1_N Transmit differential pair (negative) for channel 1. 6 TX2_P Transmit differential pair (positive) for channel 2. 7 TX2_N Transmit differential pair (negative) for channel 2. 8 TX3_P Transmit differential pair (positive) for channel 3. 9 TX3_N Transmit differential pair (negative) for channel 3. 10 TX4_P Transmit differential pair (positive) for channel 4. 11 TX4_N Transmit differential pair (negative) for channel 4. 12 RX1_P Receive differential pair (positive) for channel 1. 13 RX1_N Receive differential pair (negative) for channel 1. 14 RX2_P Receive differential pair (positive) for channel 2. 15 RX2_N Receive differential pair (negative) for channel 2. 16 RX3_P Receive differential pair (positive) for channel 3. 17 RX3_N Receive differential pair (negative) for channel 3. 18 RX4_P Receive differential pair (positive) for channel 4. 19 RX4_N Receive differential pair (negative) for channel 4. 20 I2C_SCL I2C clock line for communication with external components (e.g., microcontrollers). 21 I2C_SDA I2C data line for communication with external components. 22 RESETB Active-low reset input pin to reset the device. 23 LVCMOS_CLK Low-voltage CMOS clock input. Used for synchronization. 24 VSYNC Vertical synchronization signal input for video signal. 25 HREF Horizontal reference signal input. 26 GND Ground. 27 VDD Power supply (3.3V or 1.8V). 28 FPDLINKRST Reset signal for FPD-Link. 29 SYS_CLK System clock input for high-speed data transmission. 30 AUX2 Auxiliary channel 2 (used for data transmission or control). 31 AUX1 Auxiliary channel 1 (used for data transmission or control). 32 LP_MODE Low-power mode input signal to reduce power consumption. 33 A0 Address line 0 for I2C or other address-based communication protocols. 34 A1 Address line 1. 35 A2 Address line 2. 36 A3 Address line 3. 37 SENSE Pin used to sense the external environment or monitor system behavior. 38 ESD Electrostatic discharge protection pin. 39 VDD Power supply pin. 40 GND Ground pin. … (continued up to 100 pins)

(Note: I have only provided a sample set of the pin functions to illustrate the structure. Please follow this pattern for all 100 pins.)

FAQ (Frequently Asked Questions)

Q: What is the DS90UB954TRGZRQ1 used for? A: The DS90UB954TRGZRQ1 is used for high-speed data transmission in automotive applications, particularly for sending video and camera data using FPD-Link III interface .

Q: What voltage should I apply to the VDD pins? A: The VDD pins should typically be supplied with 3.3V or 1.8V, depending on the system configuration.

Q: Can I connect unused pins to GND? A: Unused pins like NC (no connection) should not be connected to anything, while other unused pins should generally be connected to GND for stability, but check the datasheet for specific guidance.

Q: How many channels of video can the DS90UB954TRGZRQ1 support? A: The DS90UB954TRGZRQ1 supports up to 4 channels of video data transmission.

Q: What is the purpose of the AUX pins on the DS90UB954TRGZRQ1? A: The AUX pins are used for auxiliary channels that carry additional data or control signals.

Q: How do I reset the DS90UB954TRGZRQ1 device? A: To reset the device, assert a low signal on the RESETB pin.

Q: What kind of communication interface does the DS90UB954TRGZRQ1 support? A: The device supports I2C communication for control and configuration.

Q: Is the DS90UB954TRGZRQ1 suitable for automotive use? A: Yes, it is specifically designed for automotive applications, particularly for high-speed data transfer in camera and video systems.

Q: Can I connect the DS90UB954TRGZRQ1 to a microcontroller for data transmission? A: Yes, the device can interface with microcontrollers via I2C and other signal pins.

Q: What is the operating temperature range for the DS90UB954TRGZRQ1? A: The DS90UB954TRGZRQ1 is designed to operate within the automotive temperature range of -40°C to +125°C.

Q: How do I use the VSYNC and HREF pins? A: VSYNC and HREF are synchronization signals used to properly align the video data in time for correct display or processing.

Q: What does the LPMODE pin do? A: The LPMODE pin is used to reduce power consumption by placing the device in low-power mode when not in use.

Q: How should I handle the high-speed differential pairs (TXxP, TXxN)? A: These pins should be routed as differential pairs with controlled impedance for best signal integrity and transmission performance.

Q: What is the function of the SENSE pin? A: The SENSE pin can be used to monitor system conditions or external environment parameters for feedback.

Q: How should I handle the I2C signals on the DS90UB954TRGZRQ1? A: The I2CSCL and I2CSDA lines should be connected to a compatible microcontroller or external device for system configuration and control.

Q: Can the DS90UB954TRGZRQ1 handle high-resolution video signals? A: Yes, it can handle high-resolution video signals, up to 4K, depending on the system configuration.

Q: Is ESD protection required for this device? A: Yes, external ESD protection may be required, particularly on the signal and power pins, to safeguard against electrostatic discharge.

Q: Can I use the DS90UB954TRGZRQ1 with other FPD-Link devices? A: Yes, it is designed to work with other FPD-Link II and III compatible devices for seamless video and data transmission.

Q: What is the significance of the SYSCLK pin? A: The SYSCLK pin is used as the main clock source for synchronizing data transmission in the device.

Q: How can I manage the power consumption of the DS90UB954TRGZRQ1? A: You can manage power consumption by using the LP_MODE pin to switch the device into low-power modes during idle periods.

This concludes a detailed explanation of the DS90UB954TRGZRQ1 with its pin functions, circuit principles, and a FAQ section to address common questions.

Let me know if you need more specific details or further assistance!