參數(shù)資料
型號(hào): AK5385BVS
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 24Bit 192kHz ツヒ ADC
中文描述: ADC的24位192kHz的ツヒ
文件頁數(shù): 20/24頁
文件大?。?/td> 195K
代理商: AK5385BVS
ASAHI KASEI
[AK5385B]
MS0406-E-00
2005/08
- 20 -
5. Measurement Example
Figure 8 shows the S/(N+D) vs. VREF capacitor that is connected between VREFL/R pins and AVSS pin with the 0.1
μ
F
capacitor in parallel. X-AXIS is the capacity for VREF; Y-AXIS is S/(N+D).
[Measurement Condition]
- AVDD = 5.0V, DVDD = 3.3V; AVSS = BVSS = DVSS = 0V
- fs = 48kHz
- Measurement Bandwidth = 10Hz
20kHz
- Ta = 25
°
C
- Using Audio Precision System Two Cascade
S/(N+D) vs. VREF Cap
100.0
101.0
102.0
103.0
104.0
105.0
106.0
0
50
100
150
200
250
VREF Cap [uF]
S
Lch
Rch
Figure 8. S/(N+D) vs. VREF Cap
6. Synchronization of Multiple Devices
In system where multiple ADCs are required, care must be taken to achieve simultaneous sampling. To ensure
synchronous sampling, the MCLK and LRCK must be the same for all of the AK5385Bs in the system. The all
AK5385Bs should be reset at the same timing with preventing the reset signal for AK5385B from overlapping on the edge
of MCLK, so that all AK5385Bs begin sampling on the same clock edge.
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