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  • TD9721

  • TD9721  Stereo, Differential Input Cap-Free Line Driver

    (DATASHEET)


    The TD9721 is a stereo, differential input, single supply,and cap-free line driver, which is available in SOP-14 and TSSOP-14 packages.
    The TD9721 is ground-reference output, and doesn’t need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, eliminating component height, and improving the low frequency response.
    The external gain setting is recommended using from      1V/V to 10V/V. High PSRR provides increased immunity to noise and RF rectification. TD9721 has shutdown and under-voltage detector function for Depop solution.
    The TD9721 is capable of driving 2.1Vrms at 3.3V into 2.5kload, and provides short-circuit and thermal rotection

    Features

    Operating Voltage: 3V~3.6V

    Differential Input

    Ground Reference Output

    - No Output Capacitor Required (for DC Blocking)

    - Save the PCB Space

    - Reduce the BOM Costs

    - Improve the Low Frequency Response

    Low Noise and THD+N

    - SNR > 108dB

    - Noise < 8uVrms

    - THD+N < 0.02% at 20Hz~20kHz

    Output Voltage Swing Can Reach 2.1Vrms/Chinto2.5 kΩat

    VDD=3.3V

    High PSRR: 80dB at 217Hz

    Fast Start-up Time: 500us

    Integrate the De-Pop Circuitry

    Thermal and Short-Circuit Protection

    Surface-Mount Packaging

    - SOP-14

    - TSSOP-14

    Lead Free and Green Devices Available(RoHS Compliant)

    Applications

    Set-Top Boxes
    CD/DVD Players
    LCD TVs
    HTIBs (Home Theater in Box)

 
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