AK7735EQ Datasheet, PDF (28/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC

[AK7735]
■ SRC Block
(Ta=-40 ~ 85C; AVDD=3.0~3.6V; LVDD=3.0~3.6V; TVDD=1.7~3.6V; VDD33=3.0~3.6V;
AVSS=DVSS1=DVSS2=DVSS3=0V )
1. Audio Mode (SRCFAUD bit = “1”, SRCFEC bit = “0”)
Parameter
Symbol Min.
Typ.
Max. Unit
-0.01dB 0.980 ≤ FSO/FSI ≤ 6.000 PB
0
0.4583FSI kHz
-0.01dB 0.900 ≤ FSO/FSI < 0.990
PB
0
0.4167FSI kHz
-0.01dB 0.533 ≤ FSO/FSI < 0.909
PB
0
0.2182FSI kHz
Passband -0.01dB 0.490 ≤ FSO/FSI < 0.539
PB
0
0.2177FSI kHz
-0.01dB 0.450 ≤ FSO/FSI < 0.495
PB
0
0.1948FSI kHz
-0.01dB 0.225 ≤ FSO/FSI < 0.455
PB
0
0.1312FSI kHz
-0.50dB 0.167 ≤ FSO/FSI < 0.227
PB
0
0.0658FSI kHz
0.980 ≤ FSO/FSI ≤ 6.000 SB 0.5417FSI
kHz
0.900 ≤ FSO/FSI < 0.990
SB 0.5021FSI
kHz
0.533 ≤ FSO/FSI < 0.909
SB 0.2974FSI
kHz
Stopband
0.490 ≤ FSO/FSI < 0.539
SB 0.2812FSI
kHz
0.450 ≤ FSO/FSI < 0.495
SB 0.2604FSI
kHz
0.225 ≤ FSO/FSI < 0.455
SB 0.1802FSI
kHz
0.167 ≤ FSO/FSI < 0.227
SB 0.0970FSI
kHz
Passband Ripple
0.225 ≤ FSO/FSI ≤ 6.000
0.167 ≤ FSO/FSI < 0.227
PR
PR
±0.01 dB
±0.50 dB
Stopband
0.450 ≤ FSO/FSI ≤ 6.000 SA
95.2
dB
Attenuation
0.167 ≤ FSO/FSI < 0.455
SA
85.0
dB
Group Delay * 34
(Ts=1/fs)
GD
67
(55/FSI+12/FSO)
Ts
Note
* 34. This value is SRC block only. It is the time from a rising edge of input LRCK after data is input to a
rising edge of output LRCK just before the data is output when there is no phase difference
between input and output LRCK.
016014707-E-00
- 28 -
2016/12