- 您现在的位置：买卖IC网 > PDF目录48102 > YMF721-S SPEECH SYNTHESIZER, PQFP100 PDF资料下载
参数资料
| 型号： | YMF721-S |
| 元件分类： | 音频合成 |
| 英文描述： | SPEECH SYNTHESIZER, PQFP100 |
| 封装： | SQFP-100 |
| 文件页数： | 15/41页 |
| 文件大小： | 324K |
| 代理商： | YMF721-S |
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页当前第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
YMF721
July 10, 1997
- 22 -
7-4. Others
Power Supply
It is recommended to install a line noise filter in the YMF721 (OPL4-ML2). Be sure to install 0.1uF
ceramic capacitor between each of VDD pins and VSS pins as close to the pins as possible, especially
the pin No. 63 (VDD).
5V/3V
When operating YMF721 (OPL4-ML2) with 5 V, 5V/3V pin must be pulled up. When operating it
with 3.3 V, set the pin to "L".
XI, XO
YMF721 (OPL4-ML2) requires the clock frequency of 33.8688 MHz. This signal can be supplied
from the system or from the self-oscillation circuit connected with crystal oscillator
Yamaha recommends either of the following two types of parallel resonance type oscillator
made by Daishinku Co., Ltd.
(i) 3rd Overtone Type
AT-49, SMD-49 : R=5.6K, c1=c2=10pF
(ii) Fundamental Type
AT-49, SMD-49 : R=1M, c1=c2=5pF
Use of the Crystal oscillator with frequency deviation within 100 ppm is recommended. Length of
wiring lead from XI and XO pin to each component (crystal, resistor and capacitor) should be 0.5
inch or less respectively and the circuit pattern should be shielded on its periphery to minimize effect
on the peripheral devices.
Since YMF721 (OPL4-ML2) is able to use power down mode, the power consumption can be
minimized when generation of the clock signal is discontinued during this mode.
YMF721(OPL4-ML2)
100
99
XO
XI
33.8688MHz
R
c2
c1
相关PDF资料 |
PDF描述 |
|---|---|
| YMF721 | FM + Wavetable Synthesizer LSI |
| YMF724F-V | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| YMF724 | high performance audio controller for the PCI Bus |
| YMF724F | high performance audio controller for the PCI Bus |
| YMF724F-V | high performance audio controller for the PCI Bus |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YMF724 | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:high performance audio controller for the PCI Bus |
| YMF724F | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:high performance audio controller for the PCI Bus |
| YMF724F-V | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:high performance audio controller for the PCI Bus |
| YMF740C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DS-1L |
| YMF740CV | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
发布紧急采购，3分钟左右您将得到回复。