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SM5847 Scheda tecnica (PDF) - Nippon Precision Circuits Inc

SM5847 Datasheet PDF - Nippon Precision Circuits Inc
Il numero della parte SM5847
Scarica  SM5847 Scarica

Grandezza file   337.98 Kbytes
Page   30 Pages
Produttore elettronici  NPC [Nippon Precision Circuits Inc]
Homepage  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc
Spiegazioni elettronici High-fidelity Digital Audio, Multi-function Digital Filter

SM5847 Datasheet (PDF)

Go To PDF Page Scarica Scheda tecnica
SM5847 Datasheet PDF - Nippon Precision Circuits Inc

Il numero della parte SM5847
Scarica  SM5847 Click to download

Grandezza file   337.98 Kbytes
Page   30 Pages
Produttore elettronici  NPC [Nippon Precision Circuits Inc]
Homepage  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc
Spiegazioni elettronici High-fidelity Digital Audio, Multi-function Digital Filter

SM5847 Scheda tecnica (HTML) - Nippon Precision Circuits Inc

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SM5847 Dettagli del prodotto

OVERVIEW

The SM5847AF is a 4/8-times oversampling (inter polation), 2-channel, linear-phase FIR, multi-function digital filter for digital audio reproduction equipment. It features independent left and right channel digital deemphasis filters and soft muting function.



FEATURES

■ Left/right-channel (2-channel processing)

■ 4-times/8-times oversampling (interpolation)

   • 8-times interpolation filter

      - 3-stage linear-phase FIR configuration

        1st stage (fs to 2fs): 169-tap

        2nd stage (2fs to 4fs): 29-tap

        3rd stage (4fs to 8fs): 17-tap

     - ≤±0.00002 dB passband ripple (0 to 0.4535fs)

     - ≥117 dB stopband attenuation (0.5465fs to 7.4535fs)

  • 4-times interpolation filter

    - 2-stage linear-phase FIR configuration

        1st stage (fs to 2fs): 169-tap

        2nd stage (2fs to 4fs): 29-tap

   - ≤±0.00002 dB passband ripple (0 to 0.4535fs)

   - ≥116 dB stopband attenuation (0.5465fs to 3.4535fs)

■ Digital deemphasis

  • IIR filter configuration

  • fs = 32kHz, 44.1kHz, 48kHz

  • 2-channel independent ON/OFF control

■ 26 ×24-bit parallel multiplier/32-bit accumulator

■ Overflow limiter

■ Soft muting

  • 2-channel independent ON/OFF control

■ Input data format

• 2s complement, MSB first

• 3 selectable formats

  - LR alternating, 16/18/20/24-bit serial, righ justified data

  - LR alternating, 24-bit serial, left-justifie data

  - LR simultaneous, 24-bit serial, left-justifie data

■ Output data format

    • 2s complement, MSB first, LR simultaneous

    • 18/20/22/24-bit serial

    • BCKO burst (NPC format)

■ Dither round-off processing

• Dither round-off ON/OFF selectable

■ 25-bit internal data word length

■ Internal system clock

    • 192fs/256fs selectable

    • Maximum operating frequency

      192fs mode: 37 MHz max (5 V)

                       20.7 MHz max (3 V)

      256fs mode:  27.6 MHz max (5 V)

                       25 MHz max (3 V)

■ Jitter-free function

   • Jitter-free/Sync mode selectable

■ Crystal oscillator circuit built-in

■ 3 to 5 V supply

■ 44-pin plastic QFP

■ CMOS process




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