ak4382a AKM Semiconductor, Inc., ak4382a Datasheet - Page 18

• Manufacturer Part Number: ak4382a
• Description: 112db 192khz 24-bit 2ch Ds Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Figure 9 shows the system connection diagram. An evaluation board (AKD4382) is available in order to allow an easy study
on the layout of a surrounding circuit.
MS0071-E-02
Addr
Addr
02H
03H
04H
Notes:
Reset & Power down
DZFM: Data Zero Detect Mode
DZFB: Inverting Enable of DZF
- LRCK = fs, BICK = 64fs.
- When AOUT drives some capacitive load, some resistor should be added in series between AOUT and capacitive
- All input pins except pull-down/pull-up pins should not be left floating.
24bit Audio Data
00H: Mute
Control 3
Lch ATT
Rch ATT
ATT = 20 log
Digital Ground
load.
default
default
Register Name
Register Name
Master Clock
Micro-
controller
64fs
fs
0: Channel Separated Mode
1: Channel ANDed Mode
If the DZFM bit is set to “ 1”, the DZF pins of both channels go to “ H” only when the input data at both
channels are cont inuously zeros for 8192 LRCK cycles.
0: DZF goes “H” at Zero Detection
1: DZF goes “L” at Zero Detection
10
(ATT_DATA / 255) [dB]
ATT7
ATT7
Analog Ground
D7
D7
1
0
0
Figure 9. Typical Connection Diagram
1
2
3
4
5
6
7
8
ATT6
ATT6
D6
D6
0
0
1
MCLK
BICK
SDTI
LRCK
PDN
CSN
CCLK
CDTI
SYSTEM DESIGN
AK4382A
ATT5
ATT5
D5
D5
0
0
1
- 18 -
AOUTR+
ATT4
ATT4
AOUTL+
AOUTR-
AOUTL-
D4
D4
DZFR
DZFL
0
0
1
VDD
VSS
16
15
14
13
12
11
10
9
ATT3
ATT3
D3
D3
1
0
0
0.1u
Rch
LPF
LPF
Lch
+
ATT2
ATT2
DZFB
10u
D2
D2
1
0
ATT1
ATT1
MUTE
MUTE
Rch
Lch
D1
D1
0
0
1
Analog
Supply 5V
[AK4382A]
Lch Out
Rch Out
ATT0
ATT0
2002/12
D0
D0
0
0
1