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參數(shù)資料
| 型號(hào)： | TC9447F |
| 廠商： | Toshiba Corporation |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | Single-Chip Audio Digital Signal Processor |
| 中文描述： | 單芯片音頻數(shù)字信號(hào)處理器 |
| 文件頁數(shù)： | 9/44頁 |
| 文件大小： | 635K |
| 代理商： | TC9447F |
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TC9447F
2002-02-05
9
(1-3) Setting RAM (ACMP mode)
In ACMP mode, the TC9447F does not write data directly to coefficient RAM (CRAM) or offset
RAM (OFRAM). In this mode, data must first be written to the interface buffer RAM (IFB-RAM).
Then, all the data are updated together in a period of 1 fs.
For example, if a signal flow filter is designed as in the following diagram, unless the K1 to K5
data are batch-updated, the circuit may resonate. The same applies to the K6 to K10 data.
Using ACMP mode can reduce the noise caused by updating coefficients while the TC9447F is
operating. This mode can suppress noise in almost all cases.
IFB-RAM is 32-word memory. Therefore, data can be updated at one time in units of up to 32
words.
The format of IFB-RAM is similar to the format of the RAM in 1-2 above. The length of the data
field is 2 × n bytes, where n
≤
32.
In ACMP mode, the IFOK pin outputs an ACMP operation end flag.
When ACMP operations complete, the flag is set to Low (1) and is initialized at the next low chip
select
CS
signal (2).
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相關(guān)代理商/技術(shù)參數(shù) |
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| TC9452F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:SINGLE CHIP SURROUND LSI |
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| TC9455N | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic |
| TC9456F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:SINGLE CHIP SURROUND LSI WITH A BUILT-IN SRS |
| TC9457F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Firmware Built In Digital Servo |
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