UPC1853 datasheet(32/76 Pages) NEC

32 / 76 page

µPC1853

4.4.2

µPC1853-02

(1) Mute

By the data of subaddress 00H, bit D2 to D4, ON/OFF of mute function can be controlled.

Fig. 4-13 Mute (

µPC1853-02)

Audio output mute

00H

Subaddress

Audio output not muted

Rear

output

mute

Rear

output

selection

Audio

output

mute

Audio output muted

L+R

signal

output

mute

L+R signal output mute

L+R output not muted

L+R output muted

Rear output mute

Rear output not muted

Rear output muted

Caution Use the mute function (approx. 200 ms) for pop noise reduction when changing the surround

mode and switching power.

(2) Rear output selection

By the data of subaddress 00H, bit D7, output signal of the rear output pin can be selected (

φ (L-R) signal or

(L-R) signal).

Fig. 4-14 Rear Output Selection (

µPC1853-02)

Rear output selection

00H

Subaddress

(L-R) signal: Phase-shifted

Rear

output

mute

Rear

output

selection

Audio

output

mute

(L-R) signal: Not phase-shifted

L+R

signal

output

mute

UPC1853 Datasheet(PDF) 32 Page - NEC

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