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參數(shù)資料
| 型號： | YSS915-MZ |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封裝： | SOP-28 |
| 文件頁數(shù)： | 22/32頁 |
| 文件大?。?/td> | 883K |
| 代理商： | YSS915-MZ |
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YSS915
29
A procedure to change Normal mode to Through-mode
Normal mode means that it can apply the sound effect using internal DSP function and the sampling frequency is
between 32kHz and 48kHz in this mode.
Through-mode means that the digital input data fed to YSS915 is bypassed to digital output pin without processing
by DSP and the sampling frequency is 64kHz to 96kHz.
For example, when the sampling frequency is changed from 48kHz( called fs-single) to 96kHz( called fs-double),
master clock frequency fed to XI pin of YSS915 may be changed according to the fs(sampling frequency).
In this case please refer to the following procedure.
A. Change Normal mode (fs-single) to Through-mode (fs-double)
1.
Mute Analog output of the product
2.
Set /IC=“0” of YSS915
3.
Change the master clock frequency (XI of YSS915) from “single “ to “double”
4.
Wait 2msec or more
5.
Set /IC=“1”
6.
Set the parameters from the microprocessor to YSS915 as followed
opr [7:0] = 8’bxx00x0x1
mdr [7:0] = 8’b01100000
dar [7:0] = 8’b10xx01xx or 8’b10xx10xx or 8’b10xx11xx
x means don’t care
7.
Disable to mute Analog output of the product
B. Change Through-mode (fs-double) to Normal mode (fs-single)
1.
Mute Analog output of the product
2.
Set /IC=“0” of YSS915
3.
Change the master clock frequency (XI of YSS915) from “double“ to “single”
4.
Wait 2msec or more
5.
Set /IC=“1”
6.
Set the parameters from the microprocessor to YSS915 as the same way after power on
Min 2msec
mute
Mute of Analog out
/IC of YSS915
XI of YSS915
Setting from microprocessor
to YSS915
single
double
setting
Min 2msec
mute
Mute of Analog out
/IC of YSS915
XI of YSS915
Setting from microprocessor
to YSS915
double
single
setting
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