AK4634EN Datasheet, PDF (11/94 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK -AMP

[AK4634]
FILTER CHRACTERISTICS
(Ta = Tmin ~ Tmax; AVDD = 2.8  3.6V; DVDD = 1.6  3.6V, SVDD = 2.2  4.0V; fs=8kHz)
Parameter
Symbol
min
typ
max
Unit
ADC Digital Filter (Decimation LPF):
Passband
(Note 18) 0.16dB
PB
0
-
3.0
kHz
0.66dB
-
3.5
-
kHz
1.1dB
-
3.6
-
kHz
6.9dB
-
4.0
-
kHz
Stopband
(Note 18)
SB
4.7
-
-
kHz
Passband Ripple
PR
-
-
0.1
dB
Stopband Attenuation
SA
73
-
-
dB
Group Delay
(Note 19)
GD
-
16
-
1/fs
Group Delay Distortion
GD
-
0
-
s
DAC Digital Filter (Decimation LPF):
Passband
(Note 18) 0.16dB
PB
0
-
3.0
0.54dB
1.0dB
-
-
3.5
3.6
-
-
dB
6.7dB
-
4.0
-
Stopband
(Note 18)
SB
4.7
-
-
kHz
Passband Ripple
PR
-
-
0.1
dB
Stopband Attenuation
SA
73
-
-
dB
Group Delay
(Note 19)
GD
-
16
-
1/fs
Group Delay Distortion
GD
-
0
-
s
DAC Digital Filter + Analog Filter:
Frequency Response: 0  3.4kHz
FR
-
1.0
-
dB
Note 18. The passband and stopband frequencies are proportional to fs (system sampling rate).
For example, ADC of PB = 3.6kHz is 0.45*fs (@ 1.0dB). A reference of frequency response is 1kHz.
Note 19. The calculated delay time caused by digital filtering. This time is from the input of analog signal to setting of the
16-bit data of a channel from the input register to the output register of the ADC. For the DAC, this time is from
setting the 16-bit data of a channel from the input register to the output of analog signal. When there is not a phase
change with the IIR filter, group delay of the programmable filter (primary HPF + primary LPF + 5-band
Equalizer + ALC) increases for 2/fs than a value of an above mention.
DC CHRACTERISTICS
(Ta = Tmin ~ Tmax; AVDD = 2.8  3.6V, DVDD = 1.6  3.6V, SVDD = 2.2  4.0V)
Parameter
Symbol
min
typ
High-Level Input Voltage
(DVDD ≥ 2.2V)
VIH 70%DVDD
-
(DVDD < 2.2V)
80%DVDD
-
Low-Level Input Voltage
(DVDD ≥ 2.2V)
VIL
-
-
(DVDD < 2.2V)
-
-
High-Level Output Voltage
(Iout = 80A)
VOH DVDD0.2
-
Low-Level Output Voltage
(Except SDA pin: Iout = 80A) VOL1
-
-
(SDA pin, 2.0V  DVDD  3.6V: Iout = 3mA) VOL2
-
-
(SDA pin, 1.6V  DVDD < 2.0V: Iout = 3mA) VOL2
-
-
Input Leakage Current
Iin
-
-
max
Unit
-
V
-
V
30%DVDD V
20%DVDD V
-
V
0.2
0.4
20%DVDD
V
V
10
A
MS0686-E-03
- 11 -
2014/10