AK7600 Datasheet, PDF (6/38 Pages) Asahi Kasei Microsystems – 2/6-Channel Audio CODEC with Digital EQ

[AK7600]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=5.0V, DVDD =5.0V; VSS1=VSS2=VSS3=VSS4=0V; VREFH=AVDD, fs=44.1kHz; BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz∼20kHz at 44.1kHz, ; unless otherwise specified)
Parameter
min
typ
max
Units
ADC Analog Input Characteristics (single inputs)
Resolution
24
Bits
S/(N+D)
fs=44.1kHz
-1dBFS
83
90
dB
BW=20kHz
-60dBFS
35
DR
(-60dBFS with A-weighted)
90
97
dB
S/N
(A-weighted)
90
97
dB
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
Gain Drift
0
0.5
dB
20
-
ppm/°C
Input Voltage
AIN=0.65xVREFH
3.09
3.25
3.41
Vpp
Input Resistance
22
45
kΩ
Power Supply Rejection
(Note 7)
50
dB
DAC Analog Output Characteristics (single outputs)
Resolution
24
Bits
S/(N+D)
fs=44.1kHz
BW=20kHz
-1dBFS
-60dBFS
90
dB
39
DR
(-60dBFS with A-weighted)
102
dB
S/N
(A-weighted)
102
dB
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
0
0.5
dB
Gain Drift
20
-
ppm/°C
Output Voltage
AOUT=0.65xVREFH
3.09
3.25
3.41
Vpp
Load Resistance
(AC load)
5
kΩ
Load Capacitance
30
pF
Power Supply Rejection
(Note 7)
50
dB
ADC to DAC Characteristics (single outputs)
Resolution
24
Bits
S/(N+D)
fs=44.1kHz
-1dBFS
80
87
dB
BW=20kHz
-60dBFS
34
DR
(-60dBFS with A-weighted)
87
96
dB
S/N
(A-weighted)
87
96
dB
Note 7. PSR is applied to AVDD and DVDD with 1kHz, 50mVpp. This is the value of convoluted sinusoidal voltage of
1kHz and 50mVpp when the VREFH pin is held +5V.
Parameter
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
AVDD
fs=44.1kHz
DVDD
fs=44.1kHz
Power-down mode (PDN pin = “L”)
AVDD+DVDD
(Note 8)
min
typ
max Units
46
69
mA
6
9
mA
300
450
µA
Note 8. The AK7600 is not operating. This value is when all the digital input pins including clocks are held to VSS2.
MS0999-E-00
-6-
2008/09