Datasheet

ADAU1761
Rev. C | Page 10 of 92
DIGITAL FILTERS
Table 5.
Parameter Mode Factor Min Typ Max Unit
ADC DECIMATION FILTER All modes, typ @ 48 kHz
Pass Band 0.4375 f
S
21 kHz
Pass-Band Ripple ±0.015 dB
Transition Band 0.5 f
S
24 kHz
Stop Band 0.5625 f
S
27 kHz
Stop-Band Attenuation 67 dB
Group Delay 22.9844/f
S
479 µs
DAC INTERPOLATION FILTER
Pass Band 48 kHz mode, typ @ 48 kHz 0.4535 f
S
22 kHz
96 kHz mode, typ @ 96 kHz 0.3646 f
S
35 kHz
Pass-Band Ripple 48 kHz mode, typ @ 48 kHz ±0.01 dB
96 kHz mode, typ @ 96 kHz ±0.05 dB
Transition Band 48 kHz mode, typ @ 48 kHz 0.5 f
S
24 kHz
96 kHz mode, typ @ 96 kHz 0.5 f
S
48 kHz
Stop Band 48 kHz mode, typ @ 48 kHz 0.5465 f
S
26 kHz
96 kHz mode, typ @ 96 kHz 0.6354 f
S
61 kHz
Stop-Band Attenuation 48 kHz mode, typ @ 48 kHz 69 dB
96 kHz mode, typ @ 96 kHz 68 dB
Group Delay 48 kHz mode, typ @ 48 kHz 25/f
S
521 µs
96 kHz mode, typ @ 96 kHz 11/f
S
115 µs
DIGITAL INPUT/OUTPUT SPECIFICATIONS
−40°C < T
A
< +85°C, IOVDD = 3.3 V ± 10%.
Table 6.
Parameter Test Conditions/Comments Min Typ Max Unit
INPUT SPECIFICATIONS
Input Voltage High (V
IH
) 0.7 × IOVDD V
Input Voltage Low (V
IL
) 0.3 × IOVDD V
Input Leakage
Pull-Ups/Pull-Downs Disabled I
IH
@ V
IH
= 3.3 V −0.17 +0.17 µA
I
IL
@ V
IL
= 0 V −0.17 +0.17 µA
I
IL
@ V
IL
= 0 V (MCLK pin) −13.5 −0.5 µA
Pull-Ups Enabled I
IH
@ V
IH
= 3.3 V −0.7 +0.7 µA
I
IL
@ V
IL
= 0 V −13.5 −0.5 µA
Pull-Downs Enabled I
IH
@ V
IH
= 3.3 V 2.7 8.3 µA
I
IL
@ V
IL
= 0 V −0.18 +0.18 µA
Input Capacitance 5 pF
OUTPUT SPECIFICATIONS
Output Voltage High (V
OH
) I
OH
= 2 mA @ 3.3 V, 0.85 mA @ 1.8 V 0.8 × IOVDD V
Output Voltage Low (V
OL
) I
OL
= 2 mA @ 3.3 V, 0.85 mA @ 1.8 V 0.1 × IOVDD V