AK4122A AKM [Asahi Kasei Microsystems], AK4122A Datasheet - Page 8

• Manufacturer Part Number: AK4122A
• Description: 24-Bit 96kHz SRC with DIR
• Manufacturer: AKM [Asahi Kasei Microsystems]

(Ta=25°C; AVDD=DVDD=3.3V; AVSS=BVSS=DVSS=0V; data = 24bit; measurement bandwidth = 20Hz ~ FSO/2;
unless otherwise specified.)
Parameter
SRC Characteristics:
Resolution
Input Sample Rate
Output Sample Rate
THD+N
Dynamic Range (Input = 1kHz, −60dBFS,
Dynamic Range (Input = 1kHz, −60dBFS, A-weighted,
Ratio between Input and Output Sample Rate
Note 4. Input data for SRC corresponds to 24bit data. When LSB 4bit data is input, the AK4122A calculates the data as
Note 5. Measured by ROHDE & SCHWARZ UPD04, Rejection Filter = wide, 8192point FFT.
Note 6. The “0.33” is the ratio of FSO/FSI when FSI is 96kHz and FSO is 32kHz. The “6” is the ratio of FSO/FSI
(Ta=25°C; AVDD=DVDD=3.0 ∼ 3.6V)
Parameter
Input Resistance
Input Voltage
Input Sample Frequency
MS1076-E-01
“0” because SRC is 20bit calculation. Therefore, SRC outputs “0” data.
when FSI is 8kHz and FSO is 48kHz.
(Input = 1kHz, 0dBFS,
FSO/FSI = 44.1kHz/48kHz
FSO/FSI = 48kHz/44.1kHz
FSO/FSI = 32kHz/48kHz
FSO/FSI = 96kHz/32kHz
Worst Case (FSO/FSI = 48kHz/8kHz)
FSO/FSI = 44.1kHz/48kHz
FSO/FSI = 48kHz/44.1kHz
FSO/FSI = 32kHz/48kHz
FSO/FSI = 96kHz/32kHz
Worst Case (FSO/FSI = 32kHz/44.1kHz)
FSO/FSI = 44.1kHz/48kHz
S/PDIF RECEIVER CHARACTERISTICS
Note
SRC CHARACTERISTICS
Note
5)
5)
Symbol
(Note
(Note
VTH
Zin
Note
fs
- 8 -
4)
6)
5)
FSO/FSI
Symbol
FSO
FSI
min
200
32
-
0.33
min
112
32
8
-
-
-
-
-
-
-
-
-
-
typ
10
-
−113
−113
−114
−111
114
115
115
116
117
typ
-
-
max
96
-
−103
max
24
96
96
6
-
-
-
-
-
-
-
-
-
-
[AK4122A]
mVpp
Units
2010/05
kHz
kΩ
Units
kHz
kHz
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-