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AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM4549BVHX/NOPB by Texas Instruments is a Codec.
Codecs are under the broader part category of Telecommunication Circuits.
A telecommunications circuit transmits and receives information between points. Key components include transmitters, receivers, amplifiers, and multiplexers. Read more about Telecommunication Circuits on our Telecommunication Circuits part category page.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
LM4549BVHX/NOPBCT-ND
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DigiKey | IC AUDIO CODEC 2MULTICH 48-LQFP Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Tape & Reel (TR), Cut Tape (CT) |
423 In Stock |
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$3.7521 / $7.8500 | Buy Now |
DISTI #
926-LM4549BVHX/NOPB
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Mouser Electronics | Interface - CODECs AC '97 Rev 2.1 Codec with Sample Rate Co A 926-LM4549BVH/NOPB RoHS: Compliant | 15 |
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$3.7200 / $7.8500 | Buy Now |
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LM4549BVHX/NOPB
Texas Instruments
Buy Now
Datasheet
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LM4549BVHX/NOPB
Texas Instruments
AC ''97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound 48-LQFP -40 to 85
|
Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | QFP | |
Package Description | 7 X 7 MM, 1.40 MM HEIGHT, GREEN, LQFP-48 | |
Pin Count | 48 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
Samacsys Manufacturer | Texas Instruments | |
JESD-609 Code | e3 | |
Moisture Sensitivity Level | 3 | |
Number of Terminals | 48 | |
Peak Reflow Temperature (Cel) | 260 | |
Terminal Finish | Matte Tin (Sn) | |
Time@Peak Reflow Temperature-Max (s) | 30 |
This table gives cross-reference parts and alternative options found for LM4549BVHX/NOPB. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM4549BVHX/NOPB, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
Part Number | Manufacturer | Composite Price | Description | Compare |
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LM4549BVHX | Texas Instruments | Check for Price | SPECIALTY CONSUMER CIRCUIT, PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48 | LM4549BVHX/NOPB vs LM4549BVHX |
LM4549BVHX/NOPB | National Semiconductor Corporation | Check for Price | IC SPECIALTY CONSUMER CIRCUIT, PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48, Consumer IC:Other | LM4549BVHX/NOPB vs LM4549BVHX/NOPB |
Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the codec near the audio connectors to minimize noise. Additionally, decoupling capacitors should be placed close to the power pins, and analog and digital grounds should be separated.
To optimize for low power consumption, use the power-down mode, reduce the clock frequency, and adjust the analog and digital supply voltages. Additionally, disable unused features and use the dynamic voltage scaling feature.
The LM4549BVHX/NOPB has a thermal pad that must be connected to a thermal plane on the PCB. Ensure good thermal conductivity by using a thermal interface material and a heat sink if necessary. Also, ensure good airflow around the device.
Use an oscilloscope to measure the audio signals, and check for proper termination, impedance matching, and signal levels. Also, verify that the codec is properly configured and that the analog and digital grounds are separated.
Yes, the LM4549BVHX/NOPB is designed to meet regulatory standards such as FCC Part 15 and CE Marking. However, the final product must still undergo testing and certification to ensure compliance.