YAC520

8

• Volume Setting

In zero crossing mode (ZCEN=H), the volume value is changed when one zero crossing is detected after

the rise of CSN. The volume value is changed also when no zero crossing is detected for 20 ms. In normal

mode (ZCEN=L), zero crossing detection is not performed and volume value is changed immediately

after the rise of CSN.

The input codes and volumes values are related as described in the following table.

Input Code

(Left/Right Channel)

L(R)IN1=L(R)IN2

Gain or Attenuation (dB)

L(R)IN2=GND

Gain or Attenuation (dB)

L(R)IN1=GND

Gain or Attenuation (dB)

11111111

+32.0

+29.5

+20.0

11111110

+31.5

+29.0

+19.5

•

•••

•

•••

11010111

+12.0

+9.5

0

•

•••

11000100

+2.5

0

−9.5

•

•••

10111111

0

−2.5

−12.0

•

•••

•

•••

00000010

−94.5

−97.0

−106.5

00000001

−95.0

−97.5

−107.0

00000000

MUTE

MUTE

MUTE

• MUTE

Writing 0000h into register enables mute. The time mute is enabled varies between zero crossing mode

(ZCEN=H) and normal mode (ZCEN=L) as described above.