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M62498

DIGITAL SOUND CONTROLLER WITH SURROUND

MITSUBISHI ELECTRIC  

MITSUBISHI SOUND PROCESSORS

M62498FP

DIGITAL SOUND CONTROLLER WITH SURROUND

FUNCTION DESCRIPTION

(1)Main volume

This IC has 2 system independence electron volume of low warp percentage and low noise.

0dB~ -∞dB attenuation quantity can be set with 36 steps(0dB~ -44dB:2dB step,-44dB~ -76dB:4dB step,

-77dB ~ -80dB:1dB step).

The attenuation quantity to 0~ -16dB can be set in A1 Vol.

The attenuation quantity to 0~ -64dB can be set in B1 Vol.They are possible to control.

Equivalent circuit of MAIN VOLUME block

A VOL input

selector

0dB~ -16dB:

2dB step

VSELA OUT1,2

17,26pin

Tone

&

Surround

block

Condenser for the

changing noise

reduction

+-VSEL1B7,O26UpTin1,2V1O8,L25INpi1n,2

B VOL input

selector

VOL OUT1,2

19,24pin

+-

0dB~ -28dB:2dB step

-28dB~ -60dB:4dB step

-61dB~ -64dB:1dB step

(2)Input selector,Input volume

This IC has 5 input selector of 2ch and Input volume of 2ch for Input TRIMMER.

The input selector D, E input is either of -8 dB of 0dB/ a choice in the input level with ATT SW.

The input volume of 0~-14dB can be set with the 2 dB step.

100k

A

100k

B

100k

C

12k

D

9.5k

E

12k

9.5k

D Input ATT SW

(0dB/-8dB)

Note1) When inputting a signal above the power supply

voltage in D, E input choice, make ATT SW ON.

Note2)The setting of ATT SW changes the input

resistance of D, E input like the following.

ATT -8dB of D,E input setting: 20kohm(TYP value)

0dB setting : 60kohm(TYP value)

0dB~ -14dB:2dB step

50k

+

-

To volume input selector A

E Input ATT SW

(0dB/-8dB)

Note3) At the time of input selector A~C, E or ALL OFF

D input ATT SW becomes -8dB setting.

At the time of input selector A~D or ALL OFF D input

ATT SW becomes -8dB setting.

Note4)This SW is for the gain adjustment

in 0 dB setting in the D, E input ATT.

MITSUBISHI

ELECTRIC

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