Bridging the Digital
Bridging the Digital
Bridging the Digital
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and Analog Worlds<br />
Product<br />
Resolution<br />
(bits)<br />
Sample<br />
Rate<br />
(kHz)<br />
SNR,<br />
Dynamic<br />
Range (dB)<br />
S(N+D)<br />
(dB)<br />
Analog I/O<br />
High Performance<br />
Power<br />
Supply<br />
(V)<br />
Power<br />
(mW)<br />
AK4396 24/DSD 192 120 100 Differential 5/3 180<br />
I/F Format Package Extras<br />
DSD,<br />
LJ,RJ,IIS<br />
28VSOP<br />
AK4395 24 192 120 100 Differential 5 335 LJ,RJ,IIS 28VSOP<br />
AK4394 24 192 120 100 Differential 5 325 LJ,RJ,IIS 28VSOP<br />
AK4393 24 96 120 100 Differential 5/3 310 LJ,RJ,IIS 28VSOP<br />
AK4383 24/DSD 192 110 94 Differential 5 100<br />
DSD,<br />
LJ,RJ,IIS<br />
20TSSOP<br />
AK4382A 24 192 112 94 Differential 5 100 LJ,RJ,IIS 16TSSOP<br />
Value Series<br />
Low-power, high performance<br />
DAC, digital attenuator, SACD<br />
110dB digital filter, digital<br />
attenuator<br />
High performance 192 kHz 24-bit<br />
DAC<br />
Highest performance 24-bit<br />
96kHz<br />
DSD and PCM <strong>Digital</strong> Audio<br />
Inputs<br />
High performance 192K DAC<br />
with DATT<br />
AK4386 24 96 100 86 Single 2.2-3.6 15 LJ,RJ,IIS 16TSSOP High-performance 2.2-3.3v DAC<br />
AK4385 24 192 108 94 Differential 5 90 LJ,RJ,IIS 16TSSOP Lower-cost version of AK4381<br />
192K DAC with DATT, pincompatible<br />
AK4381 24 192 108 94 Differential 5 90 LJ,RJ,IIS 16TSSOP<br />
with AK4382A<br />
AK4384 24 192 106 94 Single 5 85 LJ,RJ,IIS 16TSSOP Single-ended version of AK4385<br />
AK4380 24 96 100 88 Single 5 70 LJ,RJ,IIS 16TSSOP 2-Channel DAC<br />
AK4352 18 48 96 89 Single 2 6 LJ,RJ,IIS 16TSSOP 2V & Low Power Multi-bit DAC<br />
AK4351 18 48 96 88 Single 5 70 LJ,RJ,IIS 16TSSOP Small package<br />
More Than Two Channels<br />
AK4359 24 192 106 94 Single 5 235 IIS, TDM 30VSOP<br />
DSD, IIS,<br />
AK4358 24/DSD 192 112 94 Differential 5 280 TDM 48LQFP<br />
AK4357 24/DSD 192 106 90 Differential 5 250 DSD, IIS 48LQFP<br />
8-Channel DAC for DVD-Audio.<br />
I2C interface<br />
8-Channel DAC for DVD-Audio,<br />
and SACD, TDM mode<br />
6-Channel DAC for DVD-Audio,<br />
and SACD<br />
DAC<br />
Applications<br />
Spotlight -<br />
DSD and<br />
PCM<br />
Two leading high-resolution<br />
audio formats are 192KHz<br />
PCM and Direct-Stream<br />
<strong>Digital</strong>, or DSD (Super Audio<br />
CD). There are advantages<br />
and disadvantages to both<br />
approaches, which forces<br />
some designers to make a<br />
difficult choice. With AKM,<br />
however, <strong>the</strong> choice is easy.<br />
Our AK4357, AK4358 and<br />
AK4383 support both<br />
formats in a single chip. The<br />
savvy engineer can use<br />
<strong>the</strong>se devices to create true<br />
“universal” disc players.<br />
AK4356 24 192 112 94 Differential 5 375 LJ,RJ,IIS 44LQFP 6 Channel DAC for DVD-A<br />
AK4355 24 192 106 90 Differential 5 245 LJ,RJ,IIS 28VSOP 6 channel for DVDA<br />
Colored boxes denote pin-compatibility<br />
Technology<br />
Spotlight -<br />
EDF<br />
AKM’s DACs feature <strong>the</strong><br />
industry’s best integrated<br />
digital filter. This Extraordinary<br />
<strong>Digital</strong> Filter, or EDF TM ,<br />
is <strong>the</strong> result of years of<br />
experience in both electrical<br />
and process engineering.<br />
This filter, combined with<br />
AKM’s superior noiseshaping<br />
techniques, results<br />
in DACs that outperform <strong>the</strong><br />
competition by a wide<br />
margin. The plot on <strong>the</strong> left<br />
shows <strong>the</strong> difference<br />
between an “ordinary” DAC<br />
(green plot) and AKM’s<br />
Extraordinary <strong>Digital</strong> Filter<br />
DAC (yellow plot). The out of<br />
band noise and overall noise<br />
floor is significantly reduced<br />
by <strong>the</strong> EDF. The Extraordinary<br />
<strong>Digital</strong> Filter is found<br />
on many AKM highperformance<br />
DACs.<br />
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