AK4691 Datasheet, PDF (8/80 Pages) Asahi Kasei Microsystems – 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP

[AK4691]
RECOMMEND OPERATING CONDITIONS
(VSS1=VSS2=VSS3=VSS4 = 0V; Note 5)
Parameter
Symbol
min
typ
max Unit
Power Supplies Analog
AVDD
2.6
3.0
3.6
V
(Note 14)
LINE/HP (Note 12)
LVDD
2.6
3.0
5.5
V
MIC (Note 13)
MVDD
2.6 or “AVDD – 0.1” 3.0
5.5
V
Digital
DVDD
2.6
3.0
3.6
V
Digital I/F 1
TVDD1
1.6
3.0
DVDD V
Digital I/F 2
TVDD2
1.6
3.0
DVDD V
SPK
SVDD
2.6
3.0
3.6
V
Difference
AVDD – DVDD
-0.3
0
0.3
V
Note 5. All voltages with respect to ground.
Note 12. When the voltage of LVDD pin is low and a high level signal is output from LINEOUT, the output signal is
clipped and the distortion of LINEOUT degrades. LVDD should be more than (0.6 x AVDD + 0.8)[V] at
LVOL2-0 bits = “000” and be more than (0.76 x AVDD + 0.8)[V] at LVOL2-0 bits = “001” and be more than
(1.19 x AVDD + 0.8)[V] at LVOL2-0 bits = “010” and be more than (1.36 x AVDD + 0.8)[V] at LVOL2-0 bits
= “100”in order to avoid clipping.
Note 13. The Minimum value is higher value between 2.6V and “AVDD – 0.1”V.
Note 14. The power up sequence among AVDD, LVDD, MVDD, DVDD, TVDD1, TVDD2, and SVDD is not critical.
The AK4691 supports the following two cases of partial power ON/OFF. In these cases, the
PDN pin must be “L”.
1. TVDD1=TVDD2=ON: AVDD=DVDD=LVDD=MVDD=SVDD can be power ON/OFF.
2. TVDD2=ON:
TVDD1=AVDD=DVDD=LVDD=MVDD=SVDD can be power ON/OFF.
When the power state is changed from OFF to ON in the above cases, the PDN pin should be
changed from “L” to “H” after all power supply pins (TVDD1, TVDD2, AVDD, DVDD, MVDD,
LVDD, and SVDD pins) are supplied. “L” time of 150ns or more is needed to reset the AK4691.
* AKEMD assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0672-E-00
-8-
2007/11