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CXD2724AQ-3 Datasheet(PDF) 36 Page - Sony Corporation |
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CXD2724AQ-3 Datasheet(HTML) 36 Page - Sony Corporation |
36 / 65 page – 36 – CXD2724AQ-3 (6)-3. Modified Dolby B-type NR [Relevant data] Coefficients: aslw (b5H), 2D (b7H), KiA (d6H), Kia (dcH), Kis (ddH), Kdlb (faH) The aslw and 2D coefficients and the ON/OFF coefficient Kdlb must be set for Modified Dolby B-type NR. This function is turned on and off by setting Kdlb as shown in Table 8-1-11. The aslw and 2D coefficient values differ according to the Dolby level, prefilter and coefficient Kia/Kis (KiA) conditions. Table 8-1-12 shows typical setting value examples based on these three conditions. The prefilter gain (= –3.52dB) is the value when using the Application Circuit given in these specifications. Consult your Sony representative with regard to use under conditions other than those noted in Table 8-1-12. Coefficient Kdlb (faH) OFF = 0000H ON = 2000H Prefilter Dolby level Kia (dcH) Kis (ddH) aslw (b5H) 2D (b7H) Table 8-1-11. Modified Dolby B-type NR ON/OFF Setting Table 8-1-12. Modified Dolby B-type NR Coefficient Value Examples for Different Input Level Conditions (during digital input: KiA (d6H) = 8000H) (6)-4. Volume [Relevant data] Coefficient: KS (f8H) The KS (f8H) volume values are as shown in Table 8-1-8. See "5. Center Mode Control" for the calculation method. –3.52dB –3.52dB –3.52dB (Digital input) 300mVrms 300mVrms 200mVrms –20dBFS d2b2H c000H d2b2H 0000H 0000H 0000H 0000H a563H 00caH 009eH 00caH 00caH 0033H 004aH 0023H 0023H |
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