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AK4492ECB 参数 Datasheet PDF下载

AK4492ECB图片预览
型号: AK4492ECB
PDF下载: 下载PDF文件 查看货源
内容描述: [Quality Oriented 32-Bit 2ch DAC]
分类和应用:
文件页数/大小: 101 页 / 2100 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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[AK4492]  
8. Electrical Characteristics  
Analog Characteristics  
PCM Mode  
(Ta = 25 C; LDOE pin = “L”, AVDD = TVDD = DVDD = 1.8 V, AVSS = DVSS = VSSL/R = 0 V; VREFHL/R  
= VDDL/R = 5.0 V, VREFLL/R= 0V; Input data = 24 bit; BICK = 64 fs; Signal Frequency = 1 kHz; Sampling  
Frequency = 44.1 kHz; Measurement bandwidth = 20 Hz ~ 20 kHz; 2 Vrms output mode (GC[2:0] bits =  
“000” or GAIN pin = “L”); Heavy load drive mode = off(HLOAD bit = “0” or HLOAD pin = “L”); unless  
otherwise specified.)  
Parameter  
Min.  
Typ.  
Max.  
Unit  
Resolution  
-
-
32  
Bit  
Dynamic Characteristics (Note 11)  
THD+N fs=44.1kHz  
GC[2:0]= “000”  
or GAIN=“L”  
-
-
-115  
-111  
-
-
dB  
dB  
0dBFS  
BW=20kHz  
GC[2:0]=“100”  
or GAIN=“H”  
-
-
-
-
-
-
-
-
-
-
-
-
-61  
-111  
-57  
-111  
-57  
-
-
-
-
-
-
-
-
-
-
-
-
-
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
dB  
60dBFS  
0dBFS  
60dBFS  
0dBFS  
60dBFS  
60dBFS  
fs=96kHz  
BW=40kHz  
fs=192kHz  
BW=40kHz  
BW=80kHz  
-52  
123  
127  
123  
127  
125  
129  
120  
Dynamic Range (60dBFS with A-weighted)  
(Note 12)  
(Note 12)  
(Note 12)  
S/N (A-weighted)  
GC[2:0]= “000”  
or GAIN=“L”  
GC[2:0]= “100”  
or GAIN=“H”  
Interchannel Isolation (1kHz)  
DC Accuracy (Note 13)  
Interchannel Gain Mismatch  
Gain Drift  
110  
-
-
0.15  
20  
2.8  
3.75  
-
0.3  
-
2.95  
3.95  
-
dB  
ppm/C  
Vpp  
Vpp  
Output Voltage GC[2:0]=“000” or GAIN pin=“L” (Note 14)  
GC[2:0]=“100” or GAIN pin=“H” (Note 15)  
2.65  
3.55  
400  
Load  
HLOAD=“0” or HLOAD pin=“L”  
Resistance  
(Note 16)  
Load Capacitance  
HLOAD=“1” or HLOAD pin=“H”  
300  
-
-
-
-
(Note 17)  
25  
pF  
Note 11. Measured by Audio Precision APx555. Averaging mode.  
Note 12. The value of as IC single AK4492. It is a calculated value to remove the noise of External Circuit  
Figure 74 and the measuring instrument.  
Note 13. The value of as IC single AK4492.  
Note 14. The analog output voltage with 0dBFS input signal when GC[2:0] bits = 000or the GAIN pin =  
Lis calculated by the following formula.  
AOUTL/R (typ.@0dB) = (AOUT+) (AOUT) = 2.8Vpp (VREFHL/R VREFLL/R)/5.  
Note 15. The analog output voltage with 0dBFS input signal when GC[2:0] bits = 100or the GAIN pin =  
His calculated by the following formula.  
AOUTL/R (typ.@0dB) = (AOUT+) (AOUT) = 3.75Vpp (VREFHL/R VREFLL/R)/5.  
Note 16. The load resistance value with respect to ground. 10.3 System Design Analog Output shows the  
circuits and the calculataion example.  
Note 17. The load capacitance value with respect to ground. Analog characteristics are sensitive to  
capacitive load that is connected to the output pin. Therefore the capacitive load must be  
minimized.  
Note 18. It is recommended to use a resistor with 0.1% absolute error for the output stage of the adding  
circuit.  
016011073-E-00  
2016/12  
- 12 -