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LM4550BVHX/NOPB - Texas Instruments

Description: General Purpose Audio Codec 2ADC / 2DAC Ch 48-Pin LQFP T/R

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LM4550BVHX/NOPB - Texas Instruments - PCB symbol
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LM4550BVHX/NOPB - Texas Instruments PCB footprint - Quad Flat Packages - Quad Flat Packages - PT (S-PQFP-G48
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LM4550BVHX/NOPB - Texas Instruments - 3D model - Quad Flat Packages - PT (S-PQFP-G48
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LM4550BVHX/NOPB Details

  • Manufacturer Part Number:

    LM4550BVHX/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFP

  • Pin Count:

    48

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Consumer IC Type:

    CONSUMER CIRCUIT

  • JESD-30 Code:

    S-PQFP-G48

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    48

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LFQFP

  • Package Equivalence Code:

    QFP48,.35SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, LOW PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.4 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.2 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7 mm

LM4550BVHX/NOPB Frequently Asked Questions (FAQs)

  • The recommended power-on sequence is to apply the power supply voltage (VCC) before applying the audio signal. This ensures that the internal biasing circuitry is established before the audio signal is applied.
  • The gain of the LM4550 can be optimized by adjusting the values of the external resistors (R1 and R2) and capacitors (C1 and C2) in the feedback network. The gain can be calculated using the formula: Gain = (R2/R1) * (C1/C2).
  • The maximum power dissipation of the LM4550 is 1.4W. This is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (RθJA) of 125°C/W.
  • Yes, the LM4550 can be used as a headphone amplifier. However, it's essential to ensure that the output power is limited to avoid damaging the headphones or the amplifier. A maximum output power of 100mW per channel is recommended.
  • To reduce noise and hum, ensure that the circuit is properly grounded, and the power supply is well-regulated. Additionally, use shielded cables, and keep the audio signal paths as short as possible. You can also add noise-reducing components, such as ferrite beads or common-mode chokes, to the circuit.

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LM4550BVHX/NOPB Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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