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LC78835K View Datasheet(PDF) - SANYO -> Panasonic

Part NameDescriptionManufacturer
LC78835K 18 Bits Digital Filter and D/A Converter for Digital Audio SANYO
SANYO -> Panasonic SANYO
LC78835K Datasheet PDF : 14 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
LC78835K, 78835KM
Description of Operation
1. Digital Filter
The LC78835K and 78835KM perform arithmetic functions as shown in the following block diagrams.
• Oversampling
Constructed of twice as many interpolation filters with a cascade connection arrangement using finite-impulse-
response (FIR) filters. When operating in normal-rate mode, data is transferred through a three-stage cascading
process consisting of 43rd-order, 11th-order, and third-order finite impulse response (FIR) filters connected
together to produce an eight-times oversampled signal. When operating in double-rate mode, data is transferred
through a two-stage cascading process consisting of 43rd-order and second-order finite-impulse-response (FIR)
connected filters to give a four-times oversampled signal. For further details concerning filter characteristics, refer
to page 12.
• De-emphasis
Digital de-emphasis is performed using a first-order infinite-impulse-response (IIR) filter. Filter supported
sampling frequencies include fs = 32 kHz, 44.1 kHz and 48 kHz (frequencies are all doubled with double-rate
mode).
No. 4624-6/14
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