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Showing 197 results View by: Thread Post Sort by
  • TCA9803: TCA9803 supported clock frequency

    Tanveer Ahmed
    Tanveer Ahmed
    TI Thinks Resolved
    Part Number: TCA9803 Hi, For the TCA9803, I 've the below two queries: Query 1) Apart from 400kHz, can I use 100kHz and 50kHz also. If yes, what should be the pull up resistor value for 400k, 100k and 50k frequencies. Query 2) As per the datasheet…
    • 3 days ago
    • Interface
    • Interface forum
  • TCA9803: TCA9803 Pull Up Resistance Calculation

    Tanveer Ahmed
    Tanveer Ahmed
    TI Thinks Resolved
    Part Number: TCA9803 Hi, I am using TCA9803 in my PCB for converting 1.8V I2C (at Side A) to 3.3V Level (at Side B) For the calculation of the pull up resistors at the input of the TCA9803 IC, what should I consider: VCCA = 1.8V or VCCB = 3.3V should…
    • 3 days ago
    • Interface
    • Interface forum
  • TCA9803: TCA9803 Pull Up Resistor Values and Clock Frequency

    Tanveer Ahmed
    Tanveer Ahmed
    TI Thinks Resolved
    Part Number: TCA9803 For the TCA9803, I have the below requirements: 1. Four I2C slave devices (Four ICs: ADC IC, GPIO Exp IC, Video Encoder IC, MIPI-DSI to Parallel Converter IC) 2. Trace Length is 35 cm 3. Frequency = 400 kHz For the TCA9803 I2C Level…
    • 4 days ago
    • Interface
    • Interface forum
  • TCA9803: pull up resistor value for tca9803

    Tanveer Ahmed
    Tanveer Ahmed
    Part Number: TCA9803 Hello, I am using Lantronix QSOM Open-Q 610 uSOM I2C which is at 1.8V. To convert this 1.8V I2C to 3.3V and 2.5V, I am using two TCA9803 ICs. To a single I2C Rail, I have connected two TCA9803 ICs (one for level shifting 1.8V to…
    • 1 month ago
    • Interface
    • Interface forum
  • TCA9803: TCA9803 and constant current drive in long cables / high capacitance

    Eee Mil
    Eee Mil
    TI Thinks Resolved
    Part Number: TCA9803 Other Parts Discussed in Thread: TCA9617B , Tool/software: Hi! I'm looking for enhanced pull up to a system with long cable, but sadly other end has to be unbuffered/ up to spec i2c devices. The cable can be between 400 - 2000pF…
    • 7 months ago
    • Interface
    • Interface forum
  • TCA9803: Finding Solution

    Allan Fan
    Allan Fan
    TI Thinks Resolved
    Part Number: TCA9803 Other Parts Discussed in Thread: TCA9509 , LSF0002 Hi experts, May I learn from you do we have I2C buffer support 1.8V(A) <> 1.8V(B) and with package size including pins < 1.5x1.5? BR, Allan
    • 23 days ago
    • Interface
    • Interface forum
  • TCA9803: Application questions about TCA9803

    Zach Zhu
    Zach Zhu
    TI Thinks Resolved
    Part Number: TCA9803 Other Parts Discussed in Thread: P82B96 Tool/software: Hi, Custiomer now have a cable product application, and the transmission distance on the I2C bus needs to be larger than 7m. They want to use TCA9803 on the host pcb and the…
    • 11 months ago
    • Interface
    • Interface forum
  • TCA9803: TCA9803 VOL level when input is not 0V

    SYLVAIN BOURIOT
    SYLVAIN BOURIOT
    Part Number: TCA9803 Tool/software: Hello, In TCA9803 datasheet, VOL (Low-level output voltage) is only specified when the input is 0V: -> Low-level output voltage (VOL) of SDAA and SCLA are specified for VILB =0V. -> Low-level output voltage…
    • over 1 year ago
    • Interface
    • Interface forum
  • TCA9803: Is TCA9803 the right device to isolate a power-gated ADS1115 from an always-on I²C bus?

    Sid
    Sid
    TI Thinks Resolved
    Part Number: TCA9803 Other Parts Discussed in Thread: ADS1115 , TCA9517A , PCA9306 , , SN74LVC2G66 , TCA39306 Tool/software: Hi TI team, I’m designing an ultra-low-power sensor node (see simplified block diagram below) and need advice on the best way…
    • 6 months ago
    • Interface
    • Interface forum
  • TCA9803: TCA9803 power off A side high impedance

    Yunjing Wang1
    Yunjing Wang1
    TI Thinks Resolved
    Part Number: TCA9803 Tool/software: Hi team, My customer is using TCA9803, and wondering what is the impedance value when A side is power off? Could you pls share the impedance value in this case? Thank you! Powered-off high impedance I 2C bus pins…
    • over 1 year ago
    • Interface
    • Interface forum
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