ak7770eq ETC-unknow, ak7770eq Datasheet - Page 13

• Manufacturer Part Number: ak7770eq
• Description: Audio With Multi-channel Audio Codec
• Manufacturer: ETC-unknow

(Ta=25°C; AVDD=HVDD=DVDD=3.0~3.6V(typ=3.3V, max=3.6V); DVDD18=1.7~1.9V(typ=1.8V, max=1.9V);
VSS1= VSS2 = VSS3=0V)
Parameter
Power Supply
Power supply electric current
Note 18. DVDD18 value varies with use frequency and DSP program contents.
Note 19. This is a reference value when using a crystal oscillator.
■
(Ta=-10°C ~70°C; AVDD=DVDD=3.0~3.6V; DVDD18=1.7~1.9V; VSS1 = VSS2 = VSS3=0V; fs=48kHz;
Parameter
PassBand (±0.1dB)
Stopband
Passband Ripple
Stop band attenuation
Group Delay deviation
Group Delay (Ts=1/fs)
Digital filter + analog filter
Amplitude characteristic
20Hz~20.0kHz
Note 20. Frequency of each amplitude characteristic is in proportion to fs (sampling rate). The characteristic of the high
Note 21. The passband is from DC to 18.9kHz when fs=48kHz.
Note 22. Attenuation frequency is 48kHz to 3.044MHz when fs=48kHz.
Note 23. When fs = 48kHz, the analog modulator samples the input signal at 3.072MHz. There is no attenuation of an
Note 24. Value through Pre-Amp and ADC. External input resistance is 47kΩ, and feedback resistance is 16kΩ.
MS0699-E-01-PB
(Note
ADC1/2
Normal Operation
Reset (INITRSTN pin = “L” reference data)
AVDD
HVDD
DVDD
DVDD18
AVDD+HVDD+DVDD
AVDD+HVDD+DVDD+DVDD18
22,
input signal in band (n x 3.072MHz ± 21.99kHz; n=0, 1, 2, 3…) of integer times the sampling frequency of the
digital filter.
Since most of the supply current at the initial reset state is in the oscillator section, the value may vary slightly
according to the crystal type and the external circuit. This is a “reference data” only.
(-0.2dB)
(-3.0dB)
pass filter is not included.
Note
(Note
23)
(Note
18)
24)
(Note
(Note
21)
21)
DIGITAL FILTER CHARACTERISTICS
(Note
Symbol
∆GD
POWER CONSUMPTION
GD
PB
SB
PR
SA
19)
- 13 -
min
28
68
0
min
20.0
23.0
±0.5
typ
16
typ
75
58
6
5
2
±0.04
max
18.9
0
max
120
85
-
-
-
-
[AK7770]
2008/06
Note
Units
kHz
kHz
kHz
kHz
dB
dB
dB
μs
Ts
Units
mA
mA
mA
mA
mA
mA
20)