AK4317 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

부품명

상세내역

제조사

AK4317

18Bit SCF DAC with ATT & MIXER

Asahi Kasei Microdevices 

ASAHI KASEI

„ Zero detection

[AK4317]

When the input data at both channels are continuously zeros for 8192 LRCK cycles, DZF goes to "H".

DZF immediately goes "L" if input data are not zero after going DZF "H".

„ Soft mute operation

Soft mute operation is performed at digital domain. When SMUTE pin goes "H" or the output mode is set

to "MUTE", the output signal is attenuated by -∞ during 1024 LRCK cycles. When SMUTE pin is returned

to "L" or exiting "MUTE", the mute is cancelled and the output attenuation gradually changes to 0dB

during 1024 LRCK cycles. If the soft mute is cancelled within 1024 LRCK cycles after starting the

operation, the attenuation is discontinued and returned to 0dB. The soft mute is effective for changing the

signal source without stopping the signal transmission

Notes:

{1 The output signal is attenuated by -∞ during 1024 LRCK cycles(1024/fs).

{2 Analog output corresponding to digital input have the group delay(GD).

{3 If the soft mute is cancelled within 1024 LRCK cycles, the attenuation is discontinued and

returned to 0dB.

{4 As the input data at both channels are continuously zeros for 8192 LRCK cycles, DZF goes to

"H".

DZF immediately go to "L" if input data are not zero after DZF "H".

Figure 5 . Soft mute and zero detection

0172-E-01

- 11 -

1997/5

Share Link: