AK7782 AKM [Asahi Kasei Microsystems], AK7782 Datasheet - Page 16

• Manufacturer Part Number: AK7782
• Description: Dual Audio DSP with 24bit 5ch ADC & SRC
• Manufacturer: AKM [Asahi Kasei Microsystems]

1) ADC1, ADC2
(Ta=-40°C~85°C; AVDD=DVDD=3.0~3.6V; DVDD18=1.7~1.9V; fs=48kHz
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay Distortion
Group Delay
Digital Delay Filter + Analog Filter
Amplitude Characteristics 20Hz~20.0kHz
Note 24. Frequency of each amplitude characteristic is in proportion to fs (sampling rate). The characteristic of the high
Note 25. The passband is from DC to 21.5kHz when fs=48kHz.
Note 26. The stopband is from 26.5kHz to 3.0455MHz when fs = 48kHz.
Note 27. When fs = 48 kHz, the analog modulator samples the analog input at 3.072MHz. There is no attenuation of an
2) ADCM
(Ta=-40°C ~85°C; AVDD=DVDD=3.0~3.6V; DVDD18=1.7~1.9V fs=48kHz;
Passband
Stopband
Passband Ripple
Stopband Attenuation
Group Delay Distortion
Group Delay (Ts=1/fs)
Digital Delay Filter + Analog Filter
Amplitude Characteristics 20Hz~20.0kHz
Note 24. Frequency of each amplitude characteristic is in proportion to fs (sampling rate). The characteristic of the high
Note 25. The passband is from DC to 21.5kHz when fs=48kHz.
Note 26. The stopband is from 26.5kHz to 3.0455MHz when fs = 48kHz.
Note 27. When fs = 48 kHz, the analog modulator samples the analog input at 3.072MHz. There is no attenuation of an
Note 28. 1Ts additional delay occurs in VOL + MUX path.
MS1337-E-00-PB
input signal in band of integer times (n x 3.072MHz ± 21.99kHz; n=0, 1, 2, 3…) of the sampling frequency by the digital
filter.
input signal in band of integer times (n x 3.072MHz ± 21.99kHz; n=0, 1, 2, 3…) of the sampling frequency by
the digital filter.
pass filter is not included.
pass filter is not included.
(±0.005dB)
(-0.02dB)
(-6.0dB)
(-0.02dB)
(-6.0dB)
(±0.005dB)
(Ts=1/fs)
Parameter
Parameter
(Note
(Note
(Note
(Note
(Note
(Note
(Note
25)
25)
25)
25)
28)
26,
26,
DIGITAL FILTER CHARACTERISTICS
Note
Note
27)
27)
Symbol
Symbol
ΔGD
ΔGD
GD
GD
SA
SA
PB
SB
PR
PB
SB
PR
- 16-
26.54
26.54
min
min
80
80
0
0
(Note
(Note
21.768
21.768
23.99
±0.01
23.99
±0.1
typ
typ
29
29
24))
24))
±0.005
±0.005
max
21.5
max
21.5
0
0
[AK7782]
2011/11
Unit
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
dB
dB
dB
dB
dB
dB
Ts
Ts
μs
μs