AK7735EQ Datasheet, PDF (29/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC

[AK7735]
2. Voice Mode (SRCFAUD bit = “0”, SRCFEC bit = “0”)
Parameter
-0.01dB
-0.01dB
-0.50dB
-0.50dB
-0.50dB
-0.50dB
-0.50dB
-0.50dB
Stopband
Passband Ripple
Stopband
Attenuation
Group Delay * 34
(Ts=1/fs)
0.980 ≤ FSO/FSI ≤ 6.000
0.900 ≤ FSO/FSI < 0.990
0.711 ≤ FSO/FSI < 0.910
0.653 ≤ FSO/FSI < 0.718
0.450 ≤ FSO/FSI < 0.660
0.327 ≤ FSO/FSI < 0.455
0.225 ≤ FSO/FSI < 0.330
0.167 ≤ FSO/FSI < 0.227
0.980 ≤ FSO/FSI ≤ 6.000
0.900 ≤ FSO/FSI < 0.990
0.711 ≤ FSO/FSI < 0.910
0.653 ≤ FSO/FSI < 0.718
0.450 ≤ FSO/FSI < 0.660
0.327 ≤ FSO/FSI < 0.455
0.225 ≤ FSO/FSI < 0.330
0.167 ≤ FSO/FSI < 0.227
0.900 ≤ FSO/FSI ≤ 6.000
0.167 ≤ FSO/FSI ≤ 0.910
0.900 ≤ FSO/FSI ≤ 6.000
0.653 ≤ FSO/FSI < 0.909
0.450 ≤ FSO/FSI ≤ 0.660
0.167 ≤ FSO/FSI < 0.455
Symb
ol
PB
PB
PB
PB
PB
PB
PB
PB
SB
SB
SB
SB
SB
SB
SB
SB
PR
PR
SA
SA
SA
SA
GD
Min.
0
0
0
0
0
0
0
0
0.5417FSI
0.5021FSI
0.3735FSI
0.3320FSI
0.2490FSI
0.1660FSI
0.1248FSI
0.0970FSI
95.2
90.0
70.0
60.0
Typ.
Max. Unit
0.4583FSI kHz
0.4167FSI kHz
0.3420FSI kHz
0.3007FSI kHz
0.2230FSI kHz
0.1417FSI kHz
0.1018FSI kHz
0.0658FSI kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
±0.01 dB
±0.50 dB
dB
dB
dB
dB
67
(55/FSI+12/FSO)
Ts
3. Echo Canceller Mode (SRCFEC bit = “1”)
Parameter
Symbol
Min.
Typ.
Max. Unit
Passband -0.01dB 0.167 ≤ FSO/FSI ≤ 6.000 PB
0
0.4583FSI kHz
Stopband
0.167 ≤ FSO/FSI ≤ 6.000 SB 0.5417FSI
kHz
Passband Ripple 0.167 ≤ FSO/FSI ≤ 6.000 PR
±0.01
dB
Stopband
Attenuation
0.167 ≤ FSO/FSI ≤ 6.000 SA
95.2
dB
Group Delay * 34
(Ts=1/fs)
GD
67
(55/FSI+12/FSO)
Ts
016014707-E-00
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2016/12