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Showing 19 results View by: Thread Post Sort by
  • LM4670: Audio Power Amplifier Layout clarifications

    HARI T O1
    HARI T O1
    Part Number: LM4670 Dear Team, I am using LM4670SD/NOPB in my design.The IC is working at 5V Supply. This IC requires an 8 Ohm speaker. My first question is, In that case do the lines Vo1 and Vo2 needs a differential impedance…
    • over 1 year ago
    • Audio
    • Audio forum
  • LM4670: Spice model needed for LM4670

    Mandan Kumar
    Mandan Kumar
    Part Number: LM4670 Other Parts Discussed in Thread: TPA2011D1 Hi, I need spice model for PN- LM4670SD/NOPB. Can you please share this ? Thanks!
    • over 3 years ago
    • Audio
    • Audio forum
  • Answered
  • LM4670: I need clarification for an audio power amplifier circuit component

    HARI T O1
    HARI T O1
    Resolved
    Part Number: LM4670 Dear Team, Below is the block diagram of my first design using an audio power amplifier. The input to the audio power amplifier comes from an SC200 module by Quectel. The output of the PA is connected to a speaker . I have…
    • Resolved
    • over 2 years ago
    • Audio
    • Audio forum
  • Answered
  • TAS2521: Using TAS2521 with LM4670

    Devid Lis
    Devid Lis
    Resolved
    Part Number: TAS2521 Other Parts Discussed in Thread: LM4670 , TPA2011D1 Hello, I am trying to design a circuit using the TAS2521IRGET speaker amplifier with the LM4670SD/NOPB power amplifier. In a previous design, we successfully used a circuit based…
    • Resolved
    • over 3 years ago
    • Audio
    • Audio forum
  • Answered
  • LM4670: Similar issue to "LM4670: Output noise without input"

    Steve Gigl
    Steve Gigl
    Resolved
    Part Number: LM4670 I am having a similar issue as described in http://www.ti.com/lit/ds/symlink/lm4670.pdf . We are using a different topology (figure 30 in the datasheet) but also have output capacitance for EMC mitigation purposes. Was a resolution…
    • Resolved
    • over 6 years ago
    • Audio
    • Audio forum
  • LM4670: Layout review for Cs

    Roy Chou1
    Roy Chou1
    TI Thinks Resolved
    Part Number: LM4670 Team, Could you help review the layout showing as below?(Cs:Power supply bypassing cap) And could also let me know why we suggest tantalum cap? Roy
    • over 5 years ago
    • Audio
    • Audio forum
  • LM4670: Next generation part

    Roy Chou1
    Roy Chou1
    TI Thinks Resolved
    Part Number: LM4670 Other Parts Discussed in Thread: TPA2038D1 , TPA2029D1 , TPA2017D2 Hi Team, Excuse me. I'm not familiar with audio amp. Do we have next gen part of LM4670? Because LM4670 is old part, customer would like to change newer part. …
    • over 5 years ago
    • Audio
    • Audio forum
  • Answered
  • LM4670: LM4670SD/NOPB Can't output Sound

    Hoang Anh
    Hoang Anh
    Resolved
    Part Number: LM4670 Hi Everyone. I have designed PCB based LM4670SD/NOPB datasheet, for more information please see attached file. My MCU can communicate, read and write to LM4670, but my speaker can't output Sound. Everyone can help me detect my…
    • Resolved
    • over 6 years ago
    • Audio
    • Audio forum
  • LM4670: low resistor issue reported in pins VO1/2 of LM4670.

    Peter Chen(ICP_FAE)
    Peter Chen(ICP_FAE)
    Part Number: LM4670 customer reported low resistor issue in pins VO1/2 of LM4670. it looks like EOS issue. is there any comments for for VO1/2 EOS improve?
    • over 8 years ago
    • Audio
    • Audio forum
  • RE: LM4670: Output Noise without any Input

    Ivan Salazar
    Ivan Salazar
    Rushi, Can you please provide an email address or send a message to me at: ivan.salazar@ti.com I'm working on getting a test setup for LM4670, perhaps we can compare with the production test board. However I'd like to follow up on this off-line and…
    • over 6 years ago
    • Audio
    • Audio forum
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