- 您现在的位置：买卖IC网 > PDF目录48103 > YMU757B-Q TONE/MUSIC SYNTHESIZER, PQCC20 PDF资料下载
参数资料
| 型号： | YMU757B-Q |
| 元件分类： | 音频合成 |
| 英文描述： | TONE/MUSIC SYNTHESIZER, PQCC20 |
| 封装： | QFN-20 |
| 文件页数： | 28/44页 |
| 文件大小： | 672K |
| 代理商： | YMU757B-Q |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页当前第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页
YMU757B
-34-
Serial I/F Specifications
The YMU757B is controlled through the three serial interfaces SCLK, SYNC and SDIN.
About the relations between SDIN and SCLK
The value of SDIN is taken in the inside of the LSI at the SCLK rise.
Input SDIN so that setup/Hold time is secured to rise edge of SCLK.
(Refer to the AC characteristics of the electric characteristics for the details of the timing specification.)
About SDIN
The figure above shows no data transmission between Index data and Control data but it means nothing
problematic. 24 bit continuous data transmission is also possible.
When transmitting the data by 8-bit unit, transmit the upper 8 bits and lower 8 bits of the control data separately.
There is no particular specification for the interval between the end of transmission of the upper 8 bits and start of
transmission of the lower 8 bits. However, the longer the interval is, the longer time one transmission takes. When
entering the musical score data into FIFO, use care not to make FIFO empty.
About SYNC
It can correspond to Type1 and Type2 of the upper figure.
When rise edge of SYNC occurs inside the LSI, it considers that the data transfer of one time was completed.
SDIN for 24×SCLK just before rise edge of SYNC occurs is judged valid data.
(SDIN for 16×SCLK are valid data when transfer only Control Data.)
There is no regulation specially about the length of the H period.
But, L period is to make 100ns be secured at least in the case of the Type2 wave shape
It has the possibility that faulty operation is caused when rise edge of SYNC and fall edge of SCLK approach it.
Give careful consideration to rise edge of SCLK doesn’t occur toward rise edge of SYNC.
About the data transfer only Control Data.
If input SDIN for SCLK×16 between rise edge of SYNC and next rise edge of SYNC, the inside of the LSI is
judged it is music data ($00h) and take it.
SCLK
8 clk
16 clk
SYNC
Type1
SDIN
MSB
LSB
MSB
LSB
Index Data (8bit)
Control Data (16bit)
6
7
1 0
15
1 0
MSB
6
7
SYNC
Type2
相关PDF资料 |
PDF描述 |
|---|---|
| YMU757B | 1-4 CABLE/SATELLITE TV SPLITTER, 2GHZ |
| YMU757B | TONE/MUSIC SYNTHESIZER, PQCC20 |
| YMU757 | TONE/MUSIC SYNTHESIZER, PDSO20 |
| YMU759-Q | TONE/MUSIC SYNTHESIZER, PQCC32 |
| YMU759B-QZ | TONE/MUSIC SYNTHESIZER, PQCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YMU759 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SYNTHESIS LSI FOR PORTABLE TELEPHONE |
| YMU759B-Q | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| YMU762 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Mobile Audio 3 |
| YMW025 | 制造商:YEONHO 制造商全称:YEONHO ELECTRONICS 功能描述:2.50mm PITCH CONNECTOR |
| YMW025-02R | 制造商:YEONHO 制造商全称:YEONHO ELECTRONICS 功能描述:2.50mm PITCH CONNECTOR |
发布紧急采购，3分钟左右您将得到回复。