AK4397 Datasheet, PDF (34/37 Pages) Asahi Kasei Microsystems – High Performance Premium 32-Bit DAC

[AK4397]
Frequency Response
Gain
20kHz
−0.012dB
40kHz
−0.083dB
80kHz
−0.799dB
Table 15. Filter Response of External LPF Circuit Example 1 for PCM
100u
AOUTL- ⁺
330
3.3n
180
3.9n
37
2
+
-4
6
NJM5534D
680
+ _10u
0.1u
10u
+
0.1u
100u
AOUTL+ ⁺
330
3.3n
180
3.9n
3
7
+
2-
6
4
NJM5534D
680
+ _10u
0.1u
10u
+
0.1u
+15
-15
620
620
560
0.1u +^10u
1.0n
2 _- 4 ₆ ¹⁰⁰
3 ⁺⁷
Lch
1.0n NJM5534D
0.1u
+ _10u
Figure 18. External LPF Circuit Example 2 for PCM
1^st Stage
2^nd Stage
Total
Cut-off Frequency
182kHz
284kHz
-
Q
0.637
-
-
Gain
+3.9dB
-0.88dB
+3.02dB
Frequency
Response
20kHz
40kHz
80kHz
-0.025
-0.106
-0.517
-0.021
-0.085
-0.331
-0.046dB
-0.191dB
-0.848dB
Table 16. Filter Response of External LPF Circuit Example 2 for PCM
MS0616-E-00
- 34 -
2007/05