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參數(shù)資料
| 型號： | AK4562 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | LOW POWER 20BIT CODEC WITH PGA |
| 中文描述： | 低功耗20位編解碼器美巡賽 |
| 文件頁數(shù)： | 12/29頁 |
| 文件大?。?/td> | 167K |
| 代理商： | AK4562 |
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ASAHI KASEI
[AK4562]
MS0031-E-00
2000/05
- 12 -
OPERATION OVERVIEW
n
System Clock
The clocks that are required to operate are MCLK (256fs/384fs), LRCK (fs) and BCLK (32fs
～
). The master clock
(MCLK) should be synchronized with LRCK but the phase is free of care. The frequency of MCLK can be input 256fs or
384fs. When the 384fs is input, the internal master clock is divided into 2/3 automatically.
*fs is sampling frequency.
All external clocks (MCLK, BCLK and LRCK) should always be present whenever ADC and DAC are in operation. If
these clocks are not provided, the AK4562 may draw excess current and it is not possible to operate properly because
utilizes dynamic refreshed internally. If the external clocks are not present, the AK4562 should be in the power-down
mode.
n
Audio Data I/F Format
Using SDTO, SDTI, BCLK and LRCK pins are connected to external system. Audio data format has four kinds of mode,
the data format is MSB-first, 2’s compliment. Setting by DIF0-1 bit. The default value is DIF0 = DIF1 = “0”.
No.
0
1
2
3
DIF1 bit
0
0
1
1
DIF0 bit
0
1
0
1
SDTO (ADC)
20bit MSB justified
20bit MSB justified
20bit MSB justified
I
2
S Compatible
SDTI (DAC)
20bit LSB justified
16bit LSB justified
24bit LSB justified
I
2
S Compatible
LRCK
BCLK
≥
40fs
≥
32fs
≥
48fs
≥
40fs
Lch: “H”, Rch: “L”
Lch: “H”, Rch: “L”
Lch: “H”, Rch: “L”
Lch: “L”, Rch: “H”
Table 1. Audio Data Format
LRCK
BCLK(64fs)
SDTO(o)
0
1
2
12
13
14
20
21
31
0
1
2
12
13
14
20
21
31
0
19
1
18
0
19 18
8
7
6
0
19
SDTI(i)
1
18
0
19
12
11
1
18
0
19
12
11
19:MSB, 0:LSB
Lch Data
Rch Data
Don’t Care
Don’t Care
8
7
6
Figure 7. Audio Data Format (No.0)
LRCK
BCLK(64fs)
SDTO(o)
0
1
2
15
16
17
20
21
31
0
1
2
15
16
17
20
21
31
0
19
1
18
0
19 18
5
4
3
0
19
SDTI(i)
1
15
0
12
11
1
15
0
12
11
SDTO-19:MSB, 0:LSB; SDTI-15:MSB, 0:LSB
Lch Data
Rch Data
Don’t Care
Don’t Care
5
4
3
Figure 8. Audio Data Format (No.1)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4562VN | LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4564 | 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP |
| AK4564VQ | 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4562VN | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4564 | 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP |
| AK4564VQ | 制造商:AKM 制造商全稱:AKM 功能描述:16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP |
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