AK4635 AKM [Asahi Kasei Microsystems], AK4635 Datasheet - Page 11

• Manufacturer Part Number: AK4635
• Description: 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

(Ta = −30 ∼ 85°C; AVDD = 2.8 ∼ 3.6V; DVDD = 1.6 ∼ 3.6V, SVDD = 2.2 ∼ 4.0V; fs=8kHz)
Parameter
ADC Digital Filter (Decimation LPF):
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Group Delay Distortion
DAC Digital Filter (Decimation LPF):
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Group Delay Distortion
DAC Digital Filter + Analog Filter:
Frequency Response: 0 ∼ 3.4kHz
Note 26. The passband and stopband frequencies are proportional to fs (system sampling rate).
Note 27. The calculated delay time caused by digital filtering. This time is from the input of analog signal to setting of the
(Ta = −30 ~ 85°C; AVDD = 2.8 ∼ 3.6V, DVDD = 1.6 ∼ 3.6V, SVDD = 2.2 ∼ 4.0V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
Input Leakage Current
Rev. 0.6
(SDA pin, 2.0V ≤ DVDD ≤ 3.6V: Iout = 3mA)
(SDA pin, 1.6V ≤ DVDD < 2.0V: Iout = 3mA)
For example, ADC of PB = 3.6kHz is 0.45*fs (@ −1.0dB). A reference of frequency response is 1kHz.
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, the 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.
(Note
(Note
(Note
(Note
(Note
(Note
(Except SDA pin: Iout = 80μA)
26)
26)
27)
27)
26)
26)
(DVDD < 2.2V)
(DVDD < 2.2V)
(DVDD ≥ 2.2V)
(DVDD ≥ 2.2V)
±0.16dB
−0.66dB
−1.1dB
−6.9dB
±0.16dB
−0.54dB
−1.0dB
−6.7dB
(Iout = −80μA)
FILTER CHRACTERISTICS
DC CHRACTERISTICS
Symbol
ΔGD
ΔGD
GD
GD
PB
SB
PR
SA
PB
SB
PR
SA
FR
Symbol
- 11 -
VOL1
VOL2
VOL2
VOH
VIH
VIL
Iin
min
4.7
4.7
73
73
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
70%DVDD
80%DVDD
DVDD−0.2
min
-
-
-
-
-
-
±1.0
typ
3.5
3.6
4.0
3.5
3.6
4.0
16
16
0
0
-
-
-
-
-
-
-
-
typ
-
-
-
-
-
-
-
-
-
max
±0.1
±0.1
3.0
3.0
30%DVDD
20%DVDD
20%DVDD
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
max
±10
0.2
0.4
-
-
-
[AK4635]
Units
kHz
kHz
kHz
kHz
kHz
kHz
1/fs
1/fs
2007/10
dB
dB
dB
dB
dB
dB
μs
μs
Units
μA
V
V
V
V
V
V
V