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參數(shù)資料
| 型號(hào)： | AK4380VT |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 100dB 24BIT 96kHz 2CH DAC |
| 中文描述： | 100dB的24位96kHz的2聲道數(shù)模轉(zhuǎn)換器 |
| 文件頁數(shù)： | 9/21頁 |
| 文件大?。?/td> | 226K |
| 代理商： | AK4380VT |
ASAHI KASEI
[AK4380]
MS0018-E-01
2000/8
- 9 -
OPERATION OVERVIEW
n
System Clock
The external clocks, which are required to operate the AK4380, are MCLK, LRCK and BICK. The master clock (MCLK)
corresponds to 256fs, 384fs, 512fs or 768fs (for normal speed mode; 128fs, 192fs, 256fs or 384fs for double speed mode).
MCLK frequency is automatically detected, and the internal master clock becomes 256fs (for normal speed mode; 128fs
for double speed mode). The MCLK should be synchronized with LRCK but the phase is not critical. Table 1
～
3 illustrate
corresponding clock frequencies.
All external clocks (MCLK, BICK and LRCK) should always be present whenever the AK4380 is in the normal operation
mode (PDN= “H”). If these clocks are not provided, the AK4380 may draw excess current because the device utilizes
dynamic refreshed logic internally. The AK4380 should be reset by PDN= “L” after threse clocks are provided. If the
external clocks are not present, the AK4380 should be in the power-down mode (PDN= “L”). After exiting reset at
power-up etc., the AK4380 is in the power-down mode until MCLK and LRCK are input.
Normal Speed Mode
“L” / “0”
8kHz~48kHz
256fs,384fs,512fs,768fs
Double Speed Mode
“H” / “1”
8kHz~96kHz
128fs,192fs,256fs,384fs
DFS pin / DFS bit
LRCK Frequency (fs)
MCLK Frequency
Table 1. System clock
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
MCLK
BICK
64fs
256fs
384fs
512fs
768fs
8.1920MHz
11.2896MHz
12.2880MHz
12.2880MHz
16.9344MHz
18.4320MHz
16.3840MHz
22.5792MHz
24.5760MHz
24.5760MHz
33.8688MHz
36.8640MHz
2.0480MHz
2.8224MHz
3.0720MHz
Table 2. System clock example (Normal Speed Mode)
LRCK
fs
88.2kHz
96.0kHz
MCLK
BICK
64fs
128fs
192fs
256fs
384fs
11.2896MHz
12.2880MHz
16.9344MHz
18.4320MHz
22.5792MHz
24.5760MHz
33.8688MHz
36.8640MHz
5.6448MHz
6.1440MHz
Table 3. System clock example (Double Speed Mode)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4380VT-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:24BIT 96K 100DB |
| AK4381 | 制造商:AKM 制造商全稱:AKM 功能描述:108DB 192KHZ 24-BIT 2CH DAC |
| AK4381VT | 制造商:AKM 制造商全稱:AKM 功能描述:108DB 192KHZ 24-BIT 2CH DAC |
| AK4381VTP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:5V 108DB DAC |
| AK4382 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.A FOR AK4382 |
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