ak4683 AKM Semiconductor, Inc., ak4683 Datasheet - Page 24

• Manufacturer Part Number: ak4683
• Description: Asynchronous Multi-channel Audio Codec With Dir/t
• Manufacturer: AKM Semiconductor, Inc.

The AK4683 has one pin for zero detect flag output. The DZFM1-0 bits select the channel grouping (Table 7). The DZF
pin goes “H” when all of the enabled channels are continuously zeros for 8192 LRCK cycles. DZF pin immediately
goes to “L” if input data of any enabled channel is not zero after going DZF “H”.
The AK4683 has Validity Detection function. DIR decodes the V bit and output “H” via pin. When unlocked, “L” is
output.
MS0427-E-02
2. Zero Detection
3. Validity Detection
Mode
0
1
2
3
DZFM1
bit
0
0
1
1
DZFM0
Table 7. Zero Detection Control
bit
0
1
0
1
Enable
Enable
L1
- 24 -
-
-
Enable
Enable
R1
-
-
AOUT
Enable
Enable
L2
-
-
Enable
Enable
R2
-
-
(default)
[AK4683]
2007/04