AK7752 Datasheet, PDF (9/23 Pages) Asahi Kasei Microsystems – Audio/Hands Free DSP with Stereo CODEC

[AK7752]
ELECTRIC CHARACTERISTICS
(1) Analog Characteristics
1) fs=8kHz
(Ta = 25°C; AVDD, DVDD = 3.3V; VREFH = AVDD, VREFL = AVSS;
BITCLK = 64fs; Signal frequency 1kHz; Measurement frequency = 20Hz to 3.4 kHz; fs = 8kHz;
CKM Mode 0 (CKM[3:0]=LLLL) Unless otherwise specified.)
Parameter
min
typ
max
ADC
Resolution
24
Section Dynamic Characteristics
S/(N+D) (-1dBFS)
76
86
Dynamic Range
(Note 7)
81
89
S/N
81
89
Inter-Channel Isolation (f=1kHz) (Note 8.)
90
105
DC accuracy
Channel Gain Mismatch
0.2
0.5
Analog Input
Input Voltage
(Note 9)
1.78
1.98
2.18
Input Impedance
40
60
DAC
Resolution
18
Section Dynamic Characteristics
S/(N+D) (0dB)
80
90
Dynamic Range
(Note 7)
87
95
S/N
87
95
Inter-Channel Isolation (f=1kHz) (Note 10)
85
100
DC accuracy
Channel Gain Mismatch
0.2
0.5
Analog Output
Output Voltage
(Note 11)
1.85
2.00
2.15
Load Resistance
10
Load Capacitance
50
Note 7. S/(N+D) when -60dB signal is applied.
Note 8. Inter-channel isolation between ALINE_IN and ANE_IN at –1dB FS signal input.
Note 9. The full scale for analog input voltage is FS = (VREFH-VREFL) ∗ 0.6.
Note 10. Between ANE_OUT and ALINE_OUT.
Note 11. Full scale output voltage when VREFH = AVDD, VREFL = AVSS.
Units
Bits
dB
dB
dB
dB
dB
Vp-p
kΩ
Bits
dB
dB
dB
dB
dB
Vp-p
kΩ
pF
MS0578-E-01-PB
-9-
2007/09