ak4396 AKM Semiconductor, Inc., ak4396 Datasheet - Page 36

• Manufacturer Part Number: ak4396
• Description: Advanced Multi-bit 192khz 24-bit ?? Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
It is recommended by SACD format book (Scarlet Book) that the filter response at SACD playback is an analog low pass
filter with a cut-off frequency of maximum 50kHz and a slope of minimum 30dB/Oct. The AK4396 can achieve this filter
response by combination of the internal filter (Table 17) and an external filter (Figure 18).
MS0336-E-00
AOUT+
AOUT-
2.8Vpp
2.8Vpp
Figure 18. External 3rd order LPF Circuit Example for DSD
2.0k
2.0k
Table 17. Internal Filter Response at DSD mode
Table 18. 3rd order LPF (Figure 18) Response
2200p
Frequency
Frequency
100kHz
100kHz
20kHz
50kHz
20kHz
50kHz
DC gain = 1.07dB
1.8k
1.8k
3300p
4.3k
- 36 -
−15.5dB
−0.05dB
−0.51dB
−16.8dB
1.0k
1.0k
−0.4dB
−2.8dB
Gain
Gain
270p
4.3k
+Vop
-Vop
-
+
270p
Analog
Out
6.34Vpp
[AK4396]
2004/08