AK4628A Datasheet, PDF (8/41 Pages) Asahi Kasei Microsystems – High Performance Multi-channel Audio CODEC

ASAHI KASEI
[AK4628A]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, TVDD=5V; AVSS, DVSS=0V; VREFH=AVDD; fs=48kHz; BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz∼20kHz at 48kHz, 20Hz~40kHz at fs=96kHz,
20Hz~40kHz at fs=192kHz; unless otherwise specified)
Parameter
min
typ
max
Units
ADC Analog Input Characteristics
Resolution
24
Bits
S/(N+D)
(-0.5dBFS)
fs=48kHz
fs=96kHz
84
92
dB
-
86
dB
DR
(-60dBFS)
fs=48kHz, A-weighted
94
102
dB
fs=96kHz
88
96
dB
fs=96kHz, A-weighted
93
102
dB
S/N
(Note 8) fs=48kHz, A-weighted
94
102
dB
fs=96kHz
88
96
dB
fs=96kHz, A-weighted
93
102
dB
Interchannel Isolation
90
110
dB
DC Accuracy
Interchannel Gain Mismatch
0.2
0.3
dB
Gain Drift
Input Voltage
AIN=0.62xVREFH
20
-
ppm/°C
2.90
3.10
3.30
Vpp
Input Resistance
(Note 9)
15
25
kΩ
Power Supply Rejection
(Note 10)
50
dB
DAC Analog Output Characteristics
Resolution
24
Bits
S/(N+D)
fs=48kHz
fs=96kHz
fs=192kHz
80
90
dB
78
88
dB
-
88
dB
DR
(-60dBFS)
fs=48kHz, A-weighted
95
106
dB
fs=96kHz
88
100
dB
fs=96kHz, A-weighted
94
106
dB
fs=192kHz
-
100
dB
fs=192kHz, A-weighted
-
106
dB
S/N
(Note 11) fs=48kHz, A-weighted
95
106
dB
fs=96kHz
88
100
dB
fs=96kHz, A-weighted
94
106
dB
fs=192kHz
-
100
dB
fs=192kHz, A-weighted
-
106
dB
Interchannel Isolation
90
110
dB
DC Accuracy
Interchannel Gain Mismatch
0.2
0.5
dB
Gain Drift
20
-
ppm/°C
Output Voltage
AOUT=0.6xVREFH
2.75
3.0
3.25
Vpp
Load Resistance
5
kΩ
Power Supply Rejection
(Note 10)
50
dB
Notes: 8. S/N measured by CCIR-ARM is 98dB(@fs=48kHz).
9. Input resistance is 16kΩ typically at fs=96kHz.
10. PSR is applied to AVDD, DVDD and TVDD with 1kHz, 50mVpp. VREFH pin is held a constant voltage.
11. S/N measured by CCIR-ARM is 102dB(@fs=48kHz).
MS0385-E-00
-8-
2005/02