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ML22Q54GA-MC PDF预览

ML22Q54GA-MC

更新时间: 2024-01-16 11:31:26
品牌 Logo 应用领域
冲电气 - OKI 语音合成PC
页数 文件大小 规格书
31页 197K
描述
Speech Synthesizer, 261.1s, PQFP44, 9 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44

ML22Q54GA-MC 技术参数

生命周期:Transferred零件包装代码:QFP
包装说明:QFP,针数:44
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.17商用集成电路类型:SPEECH SYNTHESIZER
JESD-30 代码:R-PQFP-G44长度:10.5 mm
功能数量:1端子数量:44
片上内存类型:MASK ROM最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:QFP封装形状:RECTANGULAR
封装形式:FLATPACK认证状态:Not Qualified
最长读取时间:261.1 s座面最大高度:2.25 mm
最大供电电压 (Vsup):3.6 V最小供电电压 (Vsup):2.7 V
表面贴装:YES温度等级:COMMERCIAL
端子形式:GULL WING端子节距:0.8 mm
端子位置:QUAD宽度:9.5 mm
Base Number Matches:1

ML22Q54GA-MC 数据手册

 浏览型号ML22Q54GA-MC的Datasheet PDF文件第24页浏览型号ML22Q54GA-MC的Datasheet PDF文件第25页浏览型号ML22Q54GA-MC的Datasheet PDF文件第26页浏览型号ML22Q54GA-MC的Datasheet PDF文件第28页浏览型号ML22Q54GA-MC的Datasheet PDF文件第29页浏览型号ML22Q54GA-MC的Datasheet PDF文件第30页 
FEDL2250DIGEST-01  
OKI Semiconductor  
ML2252/54-XXX, ML22Q54  
Converting PWM Signal to Analog Signal  
Examples of circuits that convert the PWM output signal to an Analog signal when PWM output is selected  
(OPTANA pin = “H”) are given below.  
1. Example Using Active LPF  
The LPF primary side is configured as below using an OP amplifier.  
C1  
ML2250f  
R2  
R1  
R1  
OUT(+)  
OUT(–)  
+
Speaker amplifier  
R2  
C1  
R3  
R3  
C2  
1
LPC cutoff frequency, f , is determined by  
fC =  
C
2πR2C1  
Ratio of resistors R1 to R2 determines the voltage amplification factor. To set the amplification factor 2 times of the  
OP amplifier, set R1:R2 = 1:2.  
2. Example Using LC Filter  
Secondary LPF is configured using a coil (L) and a capacitor (C). This configuration can directly drive a speaker.  
However, a buffer is required between the PWM output and the LC filter.  
ML2250f  
L
OUT(+)  
C
L
OUT(–)  
C
1
LPF cutoff frequency, fC, is determined by  
.
fC =  
LC  
2π√  
In the case of secondary Butterworth type LC filter, the constants are obtained by the following equations:  
1
2πfC  
1
L = 1.4142 ×  
C =  
1.412 × RL × (2πfC)  
Here, RL stands for the output load resistance and fC stands for cutoff frequency of LC filter.  
27/31  

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