LM49352RLX/NOPB National Semiconductor, LM49352RLX/NOPB Datasheet - Page 83
LM49352RLX/NOPB
Manufacturer Part Number
LM49352RLX/NOPB
Description
IC AMP AUDIO MONO D1.4W 36USMD
Manufacturer
National Semiconductor
Series
Boomer®, PowerWise®r
Type
Class Dr
Datasheet
1.LM49352RLNOPB.pdf
(110 pages)
Specifications of LM49352RLX/NOPB
Output Type
1-Channel (Mono) with Mono and Stereo Headphones
Max Output Power X Channels @ Load
1.4W x 1 @ 8 Ohm; 65mW x 2 @ 32 Ohm
Features
Depop, Differential Inputs, I²C, I²S, Microphone, Shutdown, Volume Control
Mounting Type
Surface Mount
Package / Case
36-MicroSMDxt
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Other names
LM49352RLX
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM49352RLX/NOPB
Manufacturer:
CYPRESS
Quantity:
562
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Soft Knee Function
The LM49352’s audio compressor also features a soft knee function that smoothes the harsh edges found during clipping of an
audio signal. For audio signals higher than the compressor threshold level, the soft knee function gradually increases the com-
pression ratio for increasing levels of audio signal beyond the compressor threshold. To achieve the smoothing effect to prevent
hard clipping, the soft knee function initially compresses the audio signal at the smallest ratio and then incrementally increases the
compression ratio if required. The highest level of compression applied by the soft knee function is set by the compressor ratio.
The effect of the soft knee function is shown in Figure 26.
30072790
FIGURE 26. Soft Knee Example with Compression Ratio Setting of 1:3.4
83
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