AK4497 Datasheet, PDF (21/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4497]
■ DSD Filter Characteristics
(Ta=-40~85C; VDDL/R=4.755.25V, AVDD=TVDD=3.03.6V, DVDD=1.7~1.98V; fs=44.1kHz; D/P
bit=“1”, DSDF bit = “0”, DSDSEL[1:0] bits = “00” (Note 26))
Parameter
Min.
Typ.
Max.
Unit
Digital Filter Response
Frequency Response
20kHz
-0.77
dB
(Note 27)
50kHz
-5.25
dB
100kHz
-18.80
dB
(Ta=-40~85C; VDDL/R=4.755.25V, AVDD=TVDD=3.03.6V, DVDD=1.7~1.98V; fs=44.1kHz; D/P
bit=“1”, DSDF bit=“1” DSDD bit=“1”, DSDSEL[1:0]= “00” (Note 26))
Parameter
Min.
Typ.
Max.
Unit
Digital Filter Response
Frequency Response
20kHz
-0.19
dB
(Note 27)
100kHz
-5.29
dB
150kHz
-18.91
dB
Note 25. The peak level of DSD signal should be in the range of 25% ~ 75% duty according to the SACD
format book (Scarlet Book).
Note 26. The frequency response refers to the output level of 0dB when a 1kHz 25%~75% duty sine wave
is input.
Note 27. The frequency (20k, 100k and 200kHz) will be doubled when the sampling speed is 128fs
(DSDSEL[1:0] bits = “01”) and it will be quadrupled when the sampling speed is 256fs
(DSDSEL[1:0] bits = “10”).
Rev. 0.1
- 21 -
2015/11