ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 1 -
GENERAL DESCRIPTION
The AK4366 is 24bit DAC with built-in Headphone Amplifier. The integrated headphone amplifier
features "click-free" power-on/off, a mute control and delivers 50mW of power at 16
. The AK4366 is
housed in a 16pin TSSOP package, making it suitable for portable applications.
FEATURE
o
Multi-bit
DAC
o
Sampling Rate: 8kHz
48kHz
o
64x Oversampling
o
On chip perfect filtering 8 times FIR interpolator
- Passband: 20kHz
- Passband Ripple:
0.02dB
- Stopband Attenuation: 54dB
o
Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz
o
System Clock: 256fs/384fs/512fs
- Input Level: CMOS or 0.4Vpp Analog Input
o
Audio I/F Format: MSB First, 2's Compliment
- I
2
S, 24bit MSB justified, 24bit/20bit/16bit LSB justified
o
P Interface: 3-wire
o
Bass Boost Function
o
Headphone Amplifier
- Output Power: 50mW x 2ch @16
, 3.3V
- S/N: 92dB@2.4V
- Click Noise Free at Power-ON/OFF and Mute
o
Power Supply: 2,2V
3.6V
o
Power Supply Current: 2.6mA@2.4V (@HP-AMP no-input)
o
Ta: -40
85
C
o
Small Package: 16pin TSSOP
Low Power 24-Bit 2ch DAC with HP-AMP
AK4366
= Preliminary =
ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 4 -
PIN/FUNCTION
No. Pin Name
I/O
Function
MUTEN
I
Headphone Amp Mute Pin (P/S= "H")
"H": Normal operation, "L": Mute
1
CDTI
I
Control Data Input Pin (P/S= "L")
DEM
I
De-emphasis Pin (P/S= "H")
"H": ON(44.1kHz), "L": OFF
2
CCLK
I
Control Data Clock Pin (P/S= "L")
DIF0
I
Audio Interface Format Pin (P/S= "H")
"H": I
2
S, "L": 24bit MSB justified
3
CSN
I
Control Data Chip Select Pin (P/S= "L")
4
SDATA
I
Audio Serial Data Input Pin
5
LRCK
I
L/R Clock Pin
This clock determines which audio channel is currently being input on SDATA pin.
6
BICK
I
Serial Bit Clock Pin
This clock is used to latch audio data.
7
MCLK
I
Master Clock Input Pin
8
PDN
I
Power-down & Reset Pin
When at "L", the AK4366 is in power-down mode and is held in reset.
The AK4366 should always be reset upon power-up.
9
P/S
I
Control Mode Select Pin (Internal Pull-down Pin)
"H": Parallel, "L": 3-wire Serial
10 VCOM
O
Common Voltage Output Pin
Normally connected to VSS pin with 0.1
F ceramic capacitor in parallel with a 2.2
F
electrolytic capacitor.
11 MUTET
O
Mute Time Constant Control Pin
Connected to VSS pin with a capacitor for mute time constant.
12 VDD
-
Power Supply Pin
13 VSS
-
Ground Pin
14 HVDD
-
Power Supply Pin for Headphone Amp
15 HPR
O
Rch Headphone Amp Output Pin
16 HPL
O
Lch Headphone Amp Output Pin
Note: All digital input pins except internal pull-down pin must not be left floating.
ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 5 -
ABSOLUATE MAXIMUM RATING
(VSS=0V; Note 1)
Parameter
Symbol
min
max
Units
Analog, Digital
VDD
-0.3
4.6
V
Power Supplies
HP-AMP
HVDD
-0.3
4.6
V
Input Current (any pins except for supplies)
IIN
-
10
mA
Input Voltage
VIN
-0.3
VDD+0.3 or 4.6
V
Ambient Temperature
Ta
-40
85
C
Storage Temperature
Tstg
-65
150
C
Note 1. All voltages with respect to ground.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMEND OPERATING CONDITIONS
(VSS=0V; Note 1)
Parameter
Symbol
min
typ
max
Units
Analog, Digital
VDD
2.2
2.4
3.6
V
Power Supplies
(Note 2)
HP-AMP
HVDD
2.2
2.4
3.6
V
Note 1. All voltages with respect to ground.
Note 2. VDD should be same voltage as HVDD.
* AKM assumes no responsibility for usage beyond the conditions in this datasheet.
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