Datasheet

ADAU1381
Rev. B | Page 10 of 84
Parameter Mode Factor Min Typ Max Unit
DAC INTERPOLATION FILTER
Pass Band 48 kHz mode, typ value is for 48 kHz 0.4535 × f
S
22 kHz
96 kHz mode, typ value is for 96 kHz 0.3646 × f
S
35 69 kHz
Pass-Band Ripple 48 kHz mode, typ value is for 48 kHz ±0.01 dB
96 kHz mode, typ value is for 96 kHz ±0.05 dB
Transition Band 48 kHz mode, typ value is for 48 kHz 0.5 × f
S
24 kHz
96 kHz mode, typ value is for 96 kHz 0.5 × f
S
48 kHz
Stop Band 48 kHz mode, typ value is for 48 kHz 0.5465 × f
S
26 kHz
96 kHz mode, typ value is for 96 kHz 0.6354 × f
S
61 kHz
Stop-Band Attenuation 48 kHz mode, typ value is for 48 kHz 70 dB
96 kHz mode, typ value is for 96 kHz 70 dB
Group Delay 48 kHz mode, typ value is for 48 kHz 25/f
S
521 µs
96 kHz mode, typ value is for 96 kHz 11/f
S
115 µs
DIGITAL INPUT/OUTPUT SPECIFICATIONS
−25°C < T
A
< +85°C, IOVDD = 1.62 V to 3.63 V, unless otherwise specified.
Table 6.
Parameter Conditions/Comments Min Typ Max Unit
HIGH LEVEL INPUT VOLTAGE (V
IH
) 0.7 × IOVDD V
LOW LEVEL INPUT VOLTAGE (V
IL
) IOVDD ≥ 2.97 V 0.3 × IOVDD V
1.8 V ≤ IOVDD ≤ 2.97 V 0.2 × IOVDD V
IOVDD < 1.8 V 0.1 × IOVDD V
INPUT LEAKAGE I
IH
at V
IH
= 2.4 V ±0.17 µA
I
IL
at V
IL
= 0.8 V ±0.17 µA
I
IL
of MCKI −7 µA
I
IH
with internal pull-up ±0.7 µA
I
IL
with internal pull-down −7 µA
I
IH
with internal pull-up 5 µA
I
IL
with internal pull-down ±0.18 µA
HIGH LEVEL OUTPUT VOLTAGE (V
OH
)
For low drive strength, I
OH
= 2 mA and I
OL
= 2 mA
at IOVDD = 3.3 V, I
OH
= 0.6 mA and I
OL
= 0.6 mA at
IOVDD = 1.8 V; for high drive strength, I
OH
= 3 mA
and I
OL
= 3 mA at IOVDD = 3.3 V, I
OH
= 0.9 mA and
I
OL
= 0.9 mA at IOVDD = 1.8 V
IOVDD − 0.4 V
LOW LEVEL OUTPUT VOLTAGE (V
OL
)
For low drive strength, I
OH
= 2 mA and I
OL
= 2 mA
at IOVDD = 3.3 V, I
OH
= 0.6 mA and I
OL
= 0.6 mA at
IOVDD = 1.8 V; for high drive strength, I
OH
= 3 mA
and I
OL
= 3 mA at IOVDD = 3.3 V, I
OH
= 0.9 mA and
I
OL
= 0.9 mA at IOVDD = 1.8 V
0.4 V
INPUT CAPACITANCE 5 pF