
ASAHI KASEI 
[AK4341] 
192kHz 24-Bit Stereo 
ΔΣ
DAC with 2Vrms Output
AK4341
GENERAL DESCRIPTION 
The AK4341 is the 24bit DAC with 2Vrms line output for cost and performance based audio systems. 
Using AKM's multi bit architecture for its modulator, the AK4341 delivers a wide dynamic range while 
preserving linearity for improved THD+N performance.  The AK4341 integrates a combination of SCF and 
CTF filters increasing performance for systems with excessive clock jitter. The 24 Bit word length and 
192kHz sampling rate make this part ideal for a wide range of applications such as digital STB, DVD, 
AC-3 receiver system, etc. The AK4341 is offered in a space saving 16pin TSSOP package. 
FEATURES 
 Sampling Rate Ranging from 8kHz to 192kHz 
 128 times Oversampling (Normal Speed Mode) 
 64 times Oversampling (Double Speed Mode) 
 32 times Oversampling (Quad Speed Mode) 
 24-Bit 8 times FIR Digital Filter 
 SCF with High Tolerance to Clock Jitter 
 2
nd
 Order Analog LPF 
 Single Ended Output Buffer 
Digital de-emphasis 
 Soft mute 
 I/F format: 24-Bit MSB justified or I
2
S
 Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode) 
256fs or 384fs (Double Speed Mode) 
128fs, 192fs (Quad Speed Mode) 
 THD+N: -86dB 
 Dynamic Range: 100dB 
 Power supply: 3.0 
~
 +3.6V (DAC), +8.55 
~
+12.6V (Output Buffer) 
 Ta = -20 to 85
°
C
 Very Small Package: 16pin TSSOP (6.4mm x 5.0mm) 
PDN 
LRCK
BICK
SDTI 
Audio 
Data 
Interface 
MCLK
ΔΣ
Modulator
AOUTL
8X 
Interpolator
SCF 
LPF 
AOUTR
VDD
VSS
De-emphasis
Control 
Control 
Interface 
Clock
Divider
SMUTE
DEM 
DIF
ΔΣ
Modulator
8X 
Interpolator
HVDD
SCF 
LPF 
VCOM
GAIN 
ACKS
MS0558-E-01 
2007/03 
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