參數(shù)資料
型號(hào)： CXD2719Q
廠商： Sony Corporation
英文描述： Single-Chip Dolby Pro Logic Surround Decoder(單片杜比環(huán)繞邏輯譯碼器)
中文描述： 單片杜比定向邏輯環(huán)繞聲解碼器（單片杜比環(huán)繞邏輯譯碼器）
文件頁數(shù)： 53/58頁
文件大?。?/td> 450K
代理商： CXD2719Q
– 53 –
CXD2719Q
0000H
36.0ms
6340H
6360H
tp_fb
ap0_in
69.6ms (0000H to bfe0H)
9180H
ap0_out
91a0H
ap1_in
bfe0H
ap1_out
16.8ms
16.8ms
Fig. 8-4-3. Delay Time Setting Example (1/2 Decimation)
Note)
Assuming the tap read address to be 0000H, the comb filter has a delay time of "0". However, the all
pass filters are delayed by one sample after reading from the delay RAM.
Therefore, perfect through operation is not possible even if (write address) = (read address).
Table 8-4-12. SFC Mode Delay Time Setting Value Examples
(7)-2. All Pass Filters (APF0, APF1)
The all pass filter delay times are determined by (read address) – (write address - 0020H). Set ap
_in and
ap
_out so that this subtraction results in the target delay time setting value. The calculation method is the
same as that for tp_fb.
Example)
When setting a maximum comb filter delay time of 36ms and splitting the remainder evenly
between APF0 and APF1.
(1/2 decimation)
(bfe0H – 6340H)/2 = 2e50H
The address is specified in 0020H increments, so 2e40H is used for APF0, and 2e60H for APF1.
tp_fb = 6340H, so:
ap0_in = 6360H, ap0_out = 6340H + 2e40H = 9180H
ap1_in = 91a0H, ap1_out = 9180H + 2e60H = bfe0H
0020H
0040H
·
·
3720H
·
6e40H
·
a560H
·
bf80H
bfa0H
0.022ms
0.045ms
·
·
10.000ms
·
20.000ms
·
30.000ms
·
34.739ms
34.761ms
0.045ms
0.090ms
·
·
20.000ms
·
40.000ms
·
60.000ms
·
69.478ms
69.523ms
0.068ms
0.136ms
·
·
30.000ms
·
60.000ms
·
90.000ms
·
104.217ms
104.285ms
Setting
value
Delay (fs = 44.1kHz)
1/1 (No decimation)
1/2 decimation
1/3 decimation
相關(guān)PDF資料
PDF描述
CXD2720Q Single-Chip Digital Signal Processor for Karaoke(卡拉OK單片數(shù)字信號(hào)處理器)
CXD2721Q-1 Single-Chip Digital Signal Processor for Karaoke
CXD2724AQ-3 Single-Chip Dolby Pro Logic Surround Decoder(單片杜比環(huán)繞邏輯譯碼器)
CXD2728Q Single-Chip Dolby Pro Logic Surround Decoder(單片杜比環(huán)繞Pro邏輯解碼器)
CXD2930BR GPS LSI With Built-In 32-Bit RISC CPU(全球定位系統(tǒng)（GPS）大規(guī)模集成電路(LSI)(內(nèi)置32位RISC中央處理器))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CXD2720Q 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Digital Signal Processor for Karaoke
CXD2720Q-2 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder
CXD2721Q-1 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Digital Signal Processor for Karaoke
CXD2724AQ-1 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder
CXD2724AQ-3 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder
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