ASAHI KASEI
[AK4386]
100dB 96kHz 24-Bit 2ch
∆Σ
DAC
GENERAL DESCRIPTION
The AK4386 is a 24bit low voltage & low power stereo DAC. The AK4386 uses the Advanced Multi-Bit
∆Σ
architecture, this architecture achieves DR=100dB at 3V operation. The AK4386 integrates a
combination of SCF and CTF filters increasing performance for systems with excessive clock jitter. The
AK4386 is suitable for the portable audio system like MP3 and the home audio systems like STB and TV,
etc as low power and small package. The AK4386 is offered in a space saving 16pin TSSOP package.
AK4386
FEATURES
o
Sampling Rate: 8kHz
∼
96kHz
o
24-Bit 8 times FIR Digital Filter
o
SCF with high tolerance to clock jitter
o
Single-ended output buffer
o
Digital de-emphasis for 44.1kHz sampling
o
I/F Format: 24-Bit MSB justified, 16/24-Bit LSB justified, I
2
S Compatible
o
Master Clock:
512/768/1024/1536fs for Half Speed (8kHz
∼
24kHz)
256/384/512/768fs for Normal Speed (8kHz
∼
48kHz)
128/192/256/384fs for Double Speed (48kHz
∼
96kHz)
o
CMOS Input Level
o
THD+N:
−86dB
o
DR, S/N: 100dB(@VDD=3.0V)
o
Power Supply: 2.2 to 3.6V
o
Ta =
−40 ∼
85°C
o
16pin TSSOP
TEST
PDN
DEM
MCLK
VDD
DFS1
DFS0
De-emphasis
Control
Clock
Divider
VSS
VCOM
LRCK
BICK
SDTI
Audio
Data
Interface
8X
Interpolator
8X
Interpolator
∆Σ
Modulator
∆Σ
Modulator
SCF
CTF
SCF
CTF
LOUT
ROUT
DIF1
DIF0
MS0280-E-00
-1-
2003/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
