参数资料
型号: YMU757B-QZ
元件分类: 音频合成
英文描述: TONE/MUSIC SYNTHESIZER, PQCC20
封装: LEAD FREE, QFN-20
文件页数: 26/43页
文件大小: 990K
代理商: YMU757B-QZ
YMU757B
-32-
Sound quality correction circuit
It is possible to correct the sound quality and gain by using an external circuit connected to EQ1 to 3 terminals.
A circuit structure of EQ1 to 3 terminal inside and example of external circuit are as follows.
Gain and filter characteristic are adjusted by value of C1, C2, R1 and R2.
Gain = R2 / R1. Recommendation of R1 is 22k
and R2 is 82k (gain = 3.7 times).
Cut off frequency f1 and f2 of filter is as follows.
f1=1/ (2π×R1×C1).
f2=1/ (2π×R2×C2).
Recommendation of each value are as follows.
If C1=0.022F and C2=120pF, cut off frequency f1=330Hz and f2=16kHz.
Moreover, the circuit enclosed with the dotted line becomes necessary when an analog signal is inputted from AIN and it
wants to mix it.
The level adjustment that it is mixed depends on the resistance ratio R2/Rx of Rx and R2.
The value of Rx when it wants to mix it in the amplitude of one time of AIN is 82k.
f1
f2
Gain1
Gain1 -3dB
Gain
Freq
+
VREF
-
EQ2
EQ3
FM
VOL
EQ1
R1
R2
C2
C1
Rx
C3
AIN
相关PDF资料
PDF描述
YMU757B-Q TONE/MUSIC SYNTHESIZER, PQCC20
YMU757B 1-4 CABLE/SATELLITE TV SPLITTER, 2GHZ
YMU757B TONE/MUSIC SYNTHESIZER, PQCC20
YMU757 TONE/MUSIC SYNTHESIZER, PDSO20
YMU759-Q 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