SM5865CM Datasheet, PDF (15/20 Pages) Nippon Precision Circuits Inc – D/A Converter for Digital Audio

SM5865CM
System Clock Frequencies
Table 2 shows some possible combinations for the circuit configuration shown in figure 13.
fs
Interpolating filter
(8-times/4-times)
f_WCKI
SM5865CM
f_CKI
CKDVN
Figure 13. Circuit configuration
Table 2. System clock frequencies (CKDVN = HIGH)
fs
16 kHz
System clock frequency¹
f_CKI
6.144 MHz (384fs)
Noise shaper operating
rate
48fs
Internal factor
(8fs input)
6
Internal factor
(4fs input)
12
16 kHz
8.192 MHz (512fs)
64fs
8
16
16 kHz
12.288 MHz (768fs)
96fs
12
24
32 kHz
6.144 MHz (192fs)
24fs
3
6
32 kHz
8.192 MHz (256fs)
32fs
4
8
32 kHz
12.288 MHz (384fs)
48fs
6
12
32 kHz
16.384 MHz (512fs)
64fs
8
16
32 kHz
24.576 MHz (768fs)
96fs
12
24
44.1 kHz
8.4672 MHz (192fs)
24fs
3
6
44.1 kHz
11.2896 MHz (256fs)
32fs
4
8
44.1 kHz
16.9344 MHz (384fs)
48fs
6
12
44.1 kHz
22.5792 MHz (512fs)
64fs
8
16
44.1 kHz
33.8688 MHz (768fs)
96fs
12
24
48 kHz
9.216 MHz (192fs)
24fs
3
6
48 kHz
12.288 MHz (256fs)
32fs
4
8
48 kHz
18.432 MHz (384fs)
48fs
6
12
48 kHz
24.576 MHz (512fs)
64fs
8
16
48 kHz
36.864 MHz (768fs)
96fs
12
24
88.2 kHz
16.9344 MHz (192fs)
24fs
3
6
88.2 kHz
22.5792 MHz (256fs)
32fs
4
8
88.2 kHz
33.8688 MHz (384fs)
48fs
6
12
88.2 kHz
45.1584 MHz (512fs)
64fs
8
16
96 kHz
18.432 MHz (192fs)
24fs
3
6
96 kHz
24.576 MHz (256fs)
32fs
4
8
96 kHz
36.864 MHz (384fs)
48fs
6
12
176.4 kHz
33.8688 MHz (192fs)
24fs
3
6
176.4 kHz
45.1584 MHz (256fs)
32fs
4
8
192 kHz
36.864 MHz (192fs)
24fs
3
6
1. When CKDVN = LOW, the system clock frequency f_CKI is halved, so the values shown are half the input frequency required for the same sampling rate
and internal factors.
NIPPON PRECISION CIRCUITS—15