M65853 Mitsubishi, M65853 Datasheet - Page 14

• Manufacturer Part Number: M65853
• Description: DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
• Manufacturer: Mitsubishi

(7) Input and output LPF for the digital echo
Input
The accuracy of the internal resistance of the IC is approximately ±30%
Cut-off frequency(fc) is given as follows.
Quality factor (Q) is given by the following equation for long echo.
The input and output LPF for the digital echo are configured as shown.
figure below.
fc=
Q=
1
3
2 X24k X
C2
C1
24k
DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT
0.72
1
14
C1:4700pF
C1XC2
(Figure of 0.7 is recommended)
24k
=
2 X24k X
15
MITSUBISHI
ELECTRIC
C2:1000pF
24k
MITSUBISHI SOUND PROCESSOR ICs
1
M65853FP
4700pFX1000pF
16
Output
(
3.1KHz
1 4
/ 1 7 )
KARAOKE
50
S E R I E S
S E R I E S