AK4632 Datasheet, PDF (10/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
Note 25. PLL Master Mode (MCKI=12.288MHz) and PMV=PMMIC = PMADC = PMDAC = PMSPK = PMVCM =
PMPLL = MCKO = PMAO = PMBP = MPWR = M/S =“1”. And output current from MPI pin is 0mA. When the
AK4632 is EXT mode (PMPLL = MCKO = M/S = “0”), “AVDD+DVDD” is typically 7mA@fs=8kHz,
9.5mA@fs=48kHz).
Note 26. This is the case of SAGC bits = “00” and no load resistance and capacitance. When SAGC bits = “10” and Black
signal is output, this current is typ.8mA. In the case of DC Output, this current increases by DC voltage / 150 Ω.
DC Output Voltage is 0V at PMV bit = “0”, and then DC current doesn’t flow. When any signal isn’t input at
using Sag Compensation Circuit, PMV bit should be set to “0”.
Note 27. MCKI pin is fixed to DVSS and all digital inputs pins except MCKI pin are fixed to DVSS or DVSS.
FILTER CHRACTERISTICS
(Ta = 25°C; AVDD, DVDD = 2.6 ∼ 3.6V; SVDD =2.6 ∼ 5.25V; VVDD =2.8 ∼ 5.25V; fs=8kHz)
Parameter
Symbol
min
typ
max
ADC Digital Filter (Decimation LPF):
Passband
(Note 28)
±0.16dB
−0.66dB
PB
0
-
-
3.0
3.5
-
−1.1dB
-
3.6
-
−6.9dB
-
4.0
-
Stopband
(Note 28)
SB
4.7
-
-
Passband Ripple
PR
-
-
±0.1
Stopband Attenuation
SA
73
-
-
Group Delay
(Note 29)
GD
-
17.1
-
Group Delay Distortion
∆GD
-
0
-
ADC Digital Filter (HPF):
Frequency Response (Note 28) −3.0dB
FR
-
0.62
-
−0.5dB
-
1.81
-
−0.1dB
-
3.99
-
DAC Digital Filter:
Passband
(Note 28) ±0.1dB
PB
0
-
3.6
−0.7dB
−6.0dB
-
3.6
-
-
4.0
-
Stopband
(Note 28)
SB
4.6
-
-
Passband Ripple
PR
-
-
±0.01
Stopband Attenuation
SA
59
-
-
Group Delay
(Note 29)
GD
-
16.8
-
DAC Digital Filter + Analog Filter:
Frequency Response: 0 ∼ 3.4kHz
FR
-
±1.0
-
Units
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
µs
Hz
Hz
Hz
kHz
kHz
kHz
dB
dB
1/fs
dB
Note 28. The passband and stopband frequencies are proportional to fs (system sampling rate).
For example, ADC is PB=0.45*fs (@-1.1dB). A reference of frequency response is 1kHz.
Note 29. 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. This time includes the group
delay of the HPF. 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.
DC CHRACTERISTICS
(Ta = 25°C; AVDD, DVDD = 2.6 ∼ 3.6V; SVDD =2.6 ∼ 5.25V)
Parameter
Symbol
min
typ
max
Units
High-Level Input Voltage
VIH 70%DVDD
-
-
V
Low-Level Input Voltage
VIL
-
-
30%DVDD V
High-Level Output Voltage
(Iout=−80µA)
VOH DVDD−0.4
-
-
V
Low-Level Output Voltage
(Iout= 80µA)
VOL
-
-
0.4
V
Input Leakage Current
Iin
-
-
±10
µA
MS0396-E-00
- 10 -
2005/06