AK4458 Datasheet, PDF (17/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC

[AK4458]
■ DSD Mode Characteristics
(1) DSDF bit= “0”
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; fs=44.1kHz; D/P bit=“1”, DSDF bit=“0”)
Parameter
Min.
Typ.
Max. Unit
Digital Filter Response
DSDSEL[1:0]
20kHz
-0.8
Frequency
Response
(Note 22)
“00”
“01”
50kHz
100kHz
40kHz
200kHz
-5.5
dB
-19.9
-0.8
-5.5
dB
400kHz
-19.9
80kHz
“10”
400kHz
-0.8
-5.5
dB
800kHz
-19.9
(2) DSDF bit= “1”
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V; fs=44.1kHz; D/P bit=“1”, DSDF bit=“1”)
Parameter
Min.
Typ.
Max. Unit
Digital Filter Response
DSDSEL[1:0]
20kHz
-0.2
Frequency
Response
(Note 22)
“00”
“01”
100kHz
200kHz
40kHz
200kHz
-6.3
dB
-23.7
-0.2
-6.3
dB
400kHz
-23.7
80kHz
-0.2
“10”
400kHz
-6.3
dB
800kHz
-23.7
Note 22. In DSD mode, the signal level is ranging from 25% to 75%. Peak levels of DSD signal above this duty
are not recommended by SACD format book (Scarlet Book).
Note 23. It is assumed that the output level is 0dB when the input signal is 1kHz and the duty range is between
25 ~ 75%.The output level is assumed as 0dB when applying a 1kHz sine wave in 25~ 75% duty.
*Digital filter characteristics are based on simulation results.
■ DC Characteristics
(Ta=-40  105C; AVDD=3.0  5.5V, TVDD=1.7  3.6V)
Parameter
Symbol Min.
Typ.
Max. Unit
TVDD=1.7  3.0V
High-Level Input Voltage
Low-Level Input Voltage
VIH 80%TVDD
-
-
V
VIL
-
-
20%TVDD V
TVDD=3.0V  3.6V
High-Level Input Voltage
Low-Level Input Voltage
VIH 70%TVDD
-
-
V
VIL
-
-
30%TVDD V
High-Level Output Voltage
(LRCK, BICK pins: Iout=-100µA)
Low-Level Output Voltage
VOH TVDD0.5
-
-
V
(excpt SDA pin : Iout= 100µA)
VOL
-
(SDA pin, 2.0V  TVDD  3.6V: Iout= 3mA) VOL
-
(SDA pin, 1.7V  TVDD  2.0V: Iout= 3mA) VOL
-
-
0.5
V
-
0.4
V
20%TVDD V
Input Leakage Current
Iin
-
-
10
A
014011794-E-01
- 17 -
2015/08