AK4626A Datasheet, PDF (8/40 Pages) Asahi Kasei Microsystems – High Performance Multi-channel Audio CODEC

ASAHI KASEI
[AK4626A]
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
S/(N+D)
DR
(-0.5dBFS)
(-60dBFS)
S/N
(Note 8)
Interchannel Isolation
fs=48kHz
fs=96kHz
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
24
Bits
84
92
dB
-
86
dB
94
102
dB
88
96
dB
93
102
dB
94
102
dB
88
96
dB
93
102
dB
90
110
dB
DC Accuracy
Interchannel Gain Mismatch
0.2
0.3
dB
Gain Drift
20
-
ppm/°C
Input Voltage
AIN=0.62xVREFH
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
80
90
dB
fs=96kHz
fs=192kHz
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
fs=192kHz, A-weighted
-
-
100
106
dB
dB
Interchannel Isolation
90
110
dB
DC Accuracy
Interchannel Gain Mismatch
0.2
0.5
dB
Gain Drift
Output Voltage
AOUT=0.6xVREFH
20
-
ppm/°C
2.75
3.0
3.25
Vpp
Load Resistance
Power Supply Rejection
5
kΩ
(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).
MS0397-E-00
-8-
2005/06