LM1894MX/NOPB.pdf
Unit Price:$0
Ext Price:$0
The LM1894MX/NOPB is a classic stereo DNR (Dynamic Noise Reduction) solution for audio playback systems. Unlike complementary noise-reduction systems that require encoded recordings, LM1894 is non-complementary, meaning it can operate with virtually all common prerecorded material.
The device reduces perceived noise by combining psychoacoustic masking principles with an adaptive bandwidth scheme. In practical designs, it can deliver meaningful noise reduction while keeping audio content natural and minimizing audible pumping artifacts when correctly tuned.
LM1894-based circuits are often found in consumer audio, playback accessories, and legacy systems where a simple, analog-domain improvement to noise floor is desired with minimal external components.
Non-complementary DNR operation works with standard prerecorded tapes and FM broadcasts, simplifying adoption in general playback systems.
Adaptive processing can achieve significant audible noise reduction (commonly referenced around 10 dB) with proper component selection and tuning.
DNR can save board space and cost due to the relatively small number of additional external components required.
Integrates into analog audio paths without requiring digital control, DSP resources, or firmware development.
Uses masking concepts to reduce perceived noise while maintaining musical content and intelligibility.
Dynamically manages bandwidth to lower noise during quiet passages and preserve detail when audio content is present.
Two-channel operation supports standard stereo playback systems and consumer audio products.
| Parameter | Value / Condition |
|---|---|
| Function | Stereo Dynamic Noise Reduction (DNR) |
| System Type | Non-complementary (no encoded source required) |
| Noise Reduction | Up to ~10 dB (application dependent) |
| Interface | Analog |
| Supply Voltage | 4.5 V to 18 V class supply support |
| Package | 14-pin SOIC (LM1894MX/NOPB) |
Important: TLV320AIC3256IRSBT is a stereo audio codec with embedded processing and is not a drop-in analog DNR replacement. Use it as an alternative approach (digital codec/DSP path) rather than a pin-compatible swap.
Texas Instruments offers a wide range of audio ICs spanning classic analog signal conditioning to modern codecs and DSP-enabled solutions for consumer, automotive and professional audio systems.
Noise reduction for tape decks and legacy playback sources where hiss reduction improves perceived quality.
Reduces background noise in broadcast playback chains and consumer receivers.
Analog-domain noise reduction modules with minimal external parts and low integration complexity.
Useful in refurbishment and restoration where preserving analog signal paths is preferred.
We currently provide peer-to-peer order processing. Submit an RFQ for LM1894MX/NOPB, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
Our experienced QC team strictly verifies and tests LM1894MX/NOPB. Only qualified suppliers who pass our audit can list LM1894MX/NOPB on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
Pricing and inventory for LM1894MX/NOPB fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
Wire Transfer, PayPal, Alipay, WeChat Pay, Credit Card, Western Union, MoneyGram, and Escrow are supported. Note: Some payment methods may incur a handling fee.
We support DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is available. After dispatch, you will receive an email with tracking information. Note: Carriers may take up to 24 hours to show tracking events. Typical transit time: 3–5 days by express; 25–60 days by registered mail.
We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with LM1894MX/NOPB, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to Texas Instruments LM1894MX/NOPB, including pin diagrams and datasheets. Our team will respond promptly.
The following parts are popular search parts "LM1894MX/NOPB" in Audio Special Purpose.
Directly Purchase Of Excess Inventory
We source and manage supply to safeguard against disruption from end-of-life
Electronic Component Consignment
We optimize supply chain operations by overseeing inventory, managing excess stock
Electronic Component Sourcing
Global sourcing, quality assurance, and fast turnaround you can rely on.
Electronic Component Quality Control
With rigorous process to intercept fake goods, with sincere service to deliver trust.
Free shipping over $199
onsemi
Analog Devices Inc.
Texas Instruments
Texas Instruments
Texas Instruments
Texas Instruments
Texas Instruments
onsemi
Texas Instruments
Skyworks Solutions Inc.
Cirrus Logic Inc.
Texas Instruments
Texas Instruments
Nisshinbo Micro Devices Inc.
Texas Instruments
Texas Instruments
Upload
