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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCM5121 датащи(PDF) 34 Page - Texas Instruments |
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PCM5121 датащи(HTML) 34 Page - Texas Instruments |
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34 / 121 page  DI N (1) 6 BQ (2) 6 BQ Lch Rch (3) 2 BQ (5) 2 BQ (7) 2 BQ (8) 2 BQ (6) 2 BQ (4) 2 BQ 3 Band DRC Mono Mixer Stereo Mux Stereo Mixer Coeff-1 Coeff-2 Master Vol ume 2ch Interpolation Filter 1ch I2S out 34 PCM5121, PCM5122 SLAS763C – AUGUST 2012 – REVISED OCTOBER 2018 www.ti.com Product Folder Links: PCM5121 PCM5122 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated 8.3.4.3 Fixed Audio Processing Flow (Program 5) The PCM512x implements signal processing capabilities and interpolation filtering via processing blocks. These fixed processing blocks give users the choice of how much and what type of signal processing they may use and which interpolation filter is applied. The signal processing blocks available are: • Biquad filters • Multiband DRC • Mono mixer • Stereo mixer • Average volume control Users can find more details in Purepath Studio. NOTE This process flow requires 1024 instruction cycles. Therefore, it will only function at sampling frequencies up to 48 kHz. 8.3.4.3.1 Filter Programming Changes The following sequence must be followed to change the ROM program: 1. Enter Stand-by mode. (Set Page 0, Register 2, D(4)) 2. Change program number. (Set Page 0, Register 43, D(4:0)) 3. Exit Stand-by mode. (Reset Page 0, Register 2, D(4)) 8.3.4.3.2 Processing Blocks – Detailed Descriptions Figure 55 shows the fixed processing flow. Figure 55. Preset Process Flow |
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