ASAHI KASEI
[AK4353]
MS0016-E-01
2000/07
- 1 -
GENERAL DESCRIPTION
The AK4353 is a stereo CMOS D/A Converter and Digital Audio Interface Transmitter. The DAC signal
outputs are single-ended and are analog filtered to remove out of band noise. Therefore no external filters
are required. The AK4353 can operate at the power supply from 2.7V to 5.5V and the digital I/F can
correspond to both TTL and CMOS levels.
FEATURES
o
Stereo
DAC
o
S/(N+D): 90dB@5V
o
DR:
102dB@5V
o
S/N:
102dB@5V
o
Sampling Speed: 16kHz
96kHz
o
Multiple Master Clock Frequencies:
256fs/384fs/512fs/768fs/1024fs/1536fs
for Half speed
(16kHz
24kHz)
256fs/384fs/512fs/768fs
for Normal speed (32kHz
48kHz)
128fs/192fs/256fs/384fs
for Double speed (64kHz
96kHz)
o
Data Input Formats:
LSB justified / MSB justified / I
2
S selectable
o
Selectable Function:
Soft Mute
Digital Attenuator (256 Steps)
Digital De-emphasis (44.1kHz/48kHz/32kHz)
o
Output Mode: Stereo, Mono, Reverse, Mute
o
On-Chip Digital Audio Interface Transmitter:
Compatible with S/PDIF, IEC958, AES/EBU
& EIAJ CP1201 consumer mode
o
Input Level: TTL/CMOS Selectable
o
Output Level: 3.0Vpp@5V
o
Control mode: 3-wire Serial / I
2
C Bus
o
Low Power Dissipation: 80mW@5V
o
Small 24pin VSOP Package
o
Power Supply: 2.7
5.5V
o
Ta: -40
85
C
96kHz 24Bit
DAC with DIT
AK4353
ASAHI KASEI
[AK4353]
MS0016-E-01
2000/07
- 2 -
n
Block Diagram
Modulator
MCKO
LRCK
AOUTL
PDN
DVDD
DVSS
8X
Interpolator
Clock Generator
LPF
Modulator
AOUTR
8X
Interpolator
LPF
BICK
SDTI
Serial Input
Interface
MCKI
AVDD
AVSS
VCOM
CCLK CDTI
CSN
ATT
ATT
Mixer
DZF
I2C
DIT
TX
CAD0
CAD1
TTL
Figure 1. 3-wire Serial Control Mode (I2C = "L")
Modulator
MCKO
LRCK
AOUTL
PDN
DVDD
DVSS
8X
Interpolator
Clock Generator
LPF
Modulator
AOUTR
8X
Interpolator
LPF
BICK
SDTI
Serial Input
Interface
MCKI
AVDD
AVSS
VCOM
SCL
SDA
CSN
ATT
ATT
Mixer
DZF
I2C
DIT
TX
CAD0
CAD1
TTL
Figure 2. I
2
C Bus Control Mode (I2C = "H")
ASAHI KASEI
[AK4353]
MS0016-E-01
2000/07
- 3 -
n
Ordering Guide
AK4353VF
-40
+85
C
24pin VSOP
AKD4353
Evaluation Board
n
Pin Layout
6
5
4
3
2
1
MCKO
TX
DVSS
DVDD
MCKI
BICK
SDTI
7
LRCK
8
DZF
NC
AVDD
AVSS
VCOM
AOUTL
AOUTR
CAD1
Top
View
10
9
PDN
CSN
SCL/CCLK
11
SDA/CDTI
12
CAD0
I2C
TTL
TST
19
20
21
22
23
24
18
17
15
16
14
13
ASAHI KASEI
[AK4353]
MS0016-E-01
2000/07
- 4 -
PIN/FUNCTION
No.
Pin Name
I/O
Description
1
MCKO
O
Master Clock Output Pin
Same frequency as MCKI is output
2
TX
O
Transmit Channel Output Pin
3
DVDD
-
Digital Power Supply Pin, +2.7
+5.5V
4
DVSS
-
Digital Ground Pin, 0V
5
MCKI
I
Master Clock Input Pin
6
BICK
I
Serial Data Clock Pin
7
SDTI
I
Serial Data Input Pin
8
LRCK
I
Serial Input Channel Clock Pin
9
PDN
I
Power-Down Pin
When "L", the circuit is in power-down mode.
The AK4353 should always be reset upon power-up.
10
CSN
I
Chip Select Pin at 3-wire Serial control mode
This pin should be connected to DVDD at I
2
C Bus control mode.
SCL
I
Control Clock Pin at I
2
C bus control mode
11
CCLK
I
Control Clock Pin at 3-wire serial control mode
SDA
I/O
Control Data Input/Output Pin at I
2
C Bus control mode
12
CDTI
I
Control Data Input Pin at 3-wire serial control mode
13
TST
I
Test pin
This pin should be connected to DVDD.
14
TTL
I
Digital Input Level Select Pin
"L": CMOS, "H": TTL
15
I2C
I
Control Mode Select Pin
"L": 3-wire Serial, "H": I
2
C Bus
16
CAD0
I
Chip Address Select 0 Pin
17
CAD1
I
Chip Address Select 1 Pin
18
AOUTR
O
Rch Analog Output Pin
19
AOUTL
O
Lch Analog Output Pin
20
VCOM
O
Common Voltage Output Pin, AVDD/2
Used for analog common voltage.
Large external capacitor is used to reduce power supply noise.
21
AVSS
-
Analog Ground Pin
22
AVDD
-
Analog Power Supply Pin
23
NC
-
No Connect
Nothing should be connected externally to this pin.
24
DZF
O
Zero Input Detect Pin
When SDTI follows a total 8192 LRCK cycles with "0" input data
or RSTN = "0", this pin goes to "H".
Note: No input pins should be left floating.
ASAHI KASEI
[AK4353]
MS0016-E-01
2000/07
- 5 -
ABSOLUTE MAXIMUM RATINGS
(AVSS, DVSS=0V; Note 1)
Parameter
Symbol
min
max
Units
Power Supplies
Analog
Digital
|AVSS-DVSS| (Note 2)
AVDD
DVDD
GND
-0.3
-0.3
-
6.0
6.0
0.3
V
V
V
Input Current (any pins except for supplies)
IIN
-
10
mA
Analog Input Voltage
VINA
-0.3
AVDD+0.3
V
Digital Input Voltage
VIND
-0.3
DVDD+0.3
V
Ambient Temperature
Ta
-40
85
C
Storage Temperature
Tstg
-65
150
C
Note:1. All voltages with respect to ground.
2. AVSS and DVSS must be connected to the same analog ground plane.
WARNING: Operation at or beyond these limits may results in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMENDED OPERATING CONDITIONS
(AVSS, DVSS=0V; Note 1)
Parameter
Symbol
min
typ
max
Units
3V operation (TTL = "L")
Analog
Digital
AVDD
DVDD
2.7
2.7
3.0
3.0
5.5
3.6 or AVDD
V
V
Power Supplies
(Note 3)
5V operation (TTL = "H")
Analog
Digital
AVDD
DVDD
4.5
4.5
5.0
5.0
5.5
AVDD
V
V
Note:1. All voltages with respect to ground.
3. The power up sequence between AVDD and DVDD is not critical.
*AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
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