Stereo Line Driver Design

flux

0:00

Work completed:
  • Project description updated and system architecture defined with Mermaid diagram.
  • Two THAT1646S08-U devices and optional SMF05CT2G ESD diodes added.
  • Power subsystem set to single-supply (5–18 V); DC barrel jack and decoupling capacitors (100 nF and 10 µF per rail) placed.
  • Balanced I/O connectors (two NC3FAH1 female for inputs, two TRAPC3MSX male for outputs) added.
  • Input networks (R1/R2, C10/C11) and output/sense networks (R3/R4, C12–C15) added and net-connected per datasheet.
  • VCC/VEE rails, decoupling capacitors, AGND/shields, and a ground-lift jumper all wired.
  • ERC errors for decoupling, resistor power ratings, pull-ups/pull-downs, and capacitor voltage ratings addressed.
Remaining tasks:
  • Fetch and record absolute maximum and recommended operating supply voltages from the THAT1646S08-U datasheet (project properties: “Absolute Max Supply Voltage (VCC)”, “Absolute Max Supply Voltage (VEE)”, “Recommended Min Supply Voltage”, “Recommended Max Supply Voltage”).
  • Verify that VCC/VEE nets fall within the recommended operating range and set “Supply Voltage Range Verified”.
  • Prepare PCB layout: assign footprints, configure stackup and ground/power planes, place components, run DRC, and export manufacturing files.
Success criteria status:
  • ✅ Schematic includes two THAT1646S08-U devices with decoupling, support networks, and protection.
  • ✅ All connectors correctly implemented.
  • ⚠️ PCB layout and DRC not yet done.
  • ⚠️ Manufacturing files not yet generated.
Next step: Use the @datasheet tool to query the THAT1646S08-U’s absolute maximum and recommended operating supply voltages, add those values as project properties, and verify net voltages before moving on to PCB layout.

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    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    Union 1.svg

    Union 1.svg

    Union 1Default
    kicad_mod

    SOIC127P602X173-8N.kicad_mod

    FP_SOIC127P602X173-8NFootprint
    stp

    THAT1646S08-U.stp

    3D_THAT1646S08-U3D Model
    image-removebg-preview.png

    image-removebg-preview.png

    image-removebg-previewThumbnail

    THAT1646S08-U

    THAT1646S08-U thumbnail
    Compact Dual THAT1646 Balanced Line Driver with Flexible Power Supply and Enhanced Protection

    Properties

    Single supply (5–18 V)

    18

    V
    Diagram
    


  
    
  
  
    
  



""Left Channel""


""Right Channel""


""I/O Connectors""


""ESD/EMI Protection""






































"Power Supply\n5-18V or ± Rails"
"Analog Ground/Shield"
"Input L"
"THAT1646 L"
"Balanced Out L"
"Remote Sense L"
"Input R"
"THAT1646 R"
"Balanced Out R"
"Remote Sense R"
"TRS/XLR In L"
"TRS/XLR In R"
"TRS/XLR Out L"
"TRS/XLR Out R"
"ESD In L"
"ESD In R"
"ESD Out L"
"ESD Out R"

    Integrated Circuit

    5

    V

    THAT Corporation

    THAT1646S08-U

    mouser.com/datasheet/2/407/THAT_1606_1646_Datasheet-532277.pdf

    U

    creativecommons.org/licenses/by/4.0/

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $3.25–$24.39

    Digi-Key

    $40.95

    LCSC

    $49.02–$49.82

    Mouser

    $29.23

    TME

    $3.88

    Verical

    $5.43–$37.74

    Controls