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M62464BFP

Dolby Pro Logic Surround Decoder with Discrete 5.1ch Analog Input

Mitsumi 

MITSUBISHI SOUND PROCESSOR ICs

M62464BFP

Dolby Pro Logic Surround Decoder

with Discrete 5.1ch Analog Input

FUNCTIONAL DESCRIPTION

FUNCTION

DESCRIPTION

1

Fundamental function for

Dolby Pro Logic Surround

Decoder

-Adaptive Matrix

-Input Auto-Balance

-Noise Sequencer

-Center Mode Control

ON/OFF

WIDE/NORMAL/PHANTOM

-Modified Dolby B type Noise Reduction

-4ch(L,R,C,S), 3ch(L,R,C) Mode Switch

2 5.1ch Analog Input for Dolby Digital L,R,C,SL,SR,SW ch Analog Input Support

3 C,SL,SR,SW ch Master Volume

0 to -79dB/1dB step, and -∞

4 C,SL,SR,SW ch Trimmer

5 RAM for Digital Delay

0 to -31dB/1dB step

10K-bit RAM

6 Circuit for Space Surround and

Echo

7 Pseudo Stereo Surround

8 Digital Delay Time

9 Feedback Volume

10 Delay Effect Volume

11 Bypass Switch

Digital delay circuit can be used for

Space Surround such as a Disco, Hall or Live,

and Karaoke echo.

Pseudo Stereo Surround is available in

Space Surround.

Short Delay

15.4, 20.5, 25.6, 29.2, 51.2 msec

Long Delay

123, 184 msec

Delay Signal Feedback Volume

-3 to -21 dB/3dB step, and -∞

Delay Signal Effect Volume

0 to -18 dB/3dB step, and -∞

Bypass the decode circuit

12 Output Mute

13 MCU Interface

14 Current control oscillation circuit

Mute the Lch and Rch output

Controlled by 3-lines serial data from MCU

Including the Chip Address (2 bit)

Including the oscillation circuit without

external parts.

MITSUBISHI

ELECTRIC

4

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