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LM1894

Features: Non-complementary noise reduction, single ended Low cost external components, no critical matching Compatible with all prerecorded tapes and FM 10 dB effective tape noise reduction CCIR/ARM weighted Wide supply range, 4.5V to 18V 1 Vrms input overloadApplicationAutomotive radio/tape pl...

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SeekIC No. : 004394715 Detail

LM1894: Features: Non-complementary noise reduction, single ended Low cost external components, no critical matching Compatible with all prerecorded tapes and FM 10 dB effective tape noise reduction CCIR/...

LM1894 Data Sheet

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Part Number:
LM1894
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/28

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Product Details

Description



Features:

Non-complementary noise reduction, "single ended"
Low cost external components, no critical matching
Compatible with all prerecorded tapes and FM
10 dB effective tape noise reduction CCIR/ARM weighted
Wide supply range, 4.5V to 18V
1 Vrms input overload




Application

Automotive radio/tape players
Compact portable tape players
Quality HI-FI tape systems
VCR playback noise reduction
Video disc playback noise reduction




Specifications

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage 20V
Input Voltage Range, Vpk VS/2
Operating Temperature (Note 2) 0 to +70
Storage Temperature −65 to +150
Soldering Information
Dual-In-Line Package
Soldering (10 seconds) 260


THD 0.05 %
SNR 79 dB
PSRR 56 dB
Supply Min 4.5 Volt
Supply Max 18 Volt
User Supply 8 Volt
Temperature Min 0 deg C
Temperature Max 70 deg C
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Description

The LM1894 is a stereo noise reduction circuit for use with audio playback systems. The DNR system LM1894 is non-complementary, meaning it does not require encoded source material. The system is compatible with virtually all prerecorded tapes and FM broadcasts. Psychoacoustic masking, and an adaptive bandwidth scheme allow the DNR to achieve 10 dB of noise reduction. DNR can save circuit board space and cost because of the few additional components required.






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