ak7712a-vt AKM Semiconductor, Inc., ak7712a-vt Datasheet - Page 13

• Manufacturer Part Number: ak7712a-vt
• Description: Built-in 20-bit Adc/dac Sophisticated Audio Dsp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
(Ta=25 C; AVDD,DVDD,AVB,DVB=5.0V; VRADH=AVDD,VRADL=AVSS,VRDAH=AVDD,VRDAL=AVSS;
0180-E-02
ADC unit :
DAC unit :
fs=44.1kHz; BCLK=64fs master mode; MCLK=256fs; input signal frequency=1kHz; 20-bit;
measurement band width=10Hz 20kHz; DSP unit is reset; ADC differential input; unless otherwise specified.)
note 1: S/(N+D) with an input signal of -60dB below full-scale.
Resolution
Dynamic characteristics
S/(N+D)
S/N
Dynamic range
Interchannel isolation (f=1kHz)
DC Accuracy
Interchannel gain mismatch
Gain drift
Analog input
Input voltage
Input impedance
Resolution
Dynamic characteristics
S/(N+D)
S/N
Dynamic range
Interchannel isolation (f=1kHz) (note 4)
DC Accuracy
Interchannel gain mismatch
Gain drift
Analog output
Output voltage
Load resistance
2: The full-scale of analog input voltage(AIN = (AIN+) - (AIN-) ) equals to
3: The full-scale of output voltage(0dB) is proportional to VRDAH.
4: Between L channel and R channel of each DAC.
Parameter
( -0.5dB )
(A-Weight)
(
(A-Weight)
±FS = ±(VRADH - VRADL) × 0.4
Aout(typ. @0dB) = 2.9Vpp × VRDAH/5
(A-Weight) (note 1)
(A-Weight)
0 dB )
(note 2)
(note 4)
(note 3)
(note 1)
Analog Characteristics
2.65
86
90
94
94
90
80
93
93
min
1.9
5
-
-
- 13 -
2.90
105
220
105
0.1
0.2
92
98
98
97
97
50
86
50
2.0
typ
3.15
0.5
max
0.3
20
20
2.1
-
-
ppm/ C
ppm/ C
Vp-p
Vp-p
Units
Bits
Bits
k
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
[AK7712A-VT]
1997/12