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LC78833M View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
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LC78833M Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
LC78833M, 78833V
LC78833M/V Operation
1. Digital Filters
The LC78833M and LC78833V perform the computations shown in the figure.
• Oversampling
The oversampling circuit in these ICs consists of two 2× interpolation filters (implemented as FIR filters)
connected vertically.
In particular, these ICs implement 4× oversampling by the vertical connection of two FIR filter stages, a 33rd-order
stage and a ninth-order stage. See page 9 for the filter characteristics.
• De-emphasis
A first-order IIR filter is used for de-emphasis. The filter coefficients are optimized for a sampling frequency of
44.1 kHz. See page 9 for the filter characteristics when de-emphasis is applied.
— De-emphasis on/off switching
De-emphasis is on when the EMP pin is high.
De-emphasis is off when the EMP pin is low.
2. Digital Audio Data Input
These ICs handle digital audio data in a 16-bit two’s complement MSB first format. The 16-bit serial data is input to
an internal register from the DATA pin on BCLK rising edges and read in on rising and falling edges of the LRCK
signal.
No. 5212-6/11
 

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