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參數(shù)資料
| 型號(hào)： | AK4565VF |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類(lèi)： | Codec |
| 英文描述： | LOW POWER 20BIT CODEC WITH BUILT IN ALC |
| 中文描述： | 低功耗20位編解碼器中的ALC的建造 |
| 文件頁(yè)數(shù)： | 13/33頁(yè) |
| 文件大?。?/td> | 249K |
| 代理商： | AK4565VF |
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ASAHI KASEI
[AK4565]
MS0132-E-01
2003/05
- 13 -
n
Digital High Pass Filter (HPF)
The AK4565 has a Digital High Pass Filter (HPF) to cancel DC-offset in both the IPGA and ADC. The cut-off frequency
of the HPF is 3.7Hz at fs=48kHz and it is attenuated to –0.15dB at 20Hz. This cut-off frequency scales with the sampling
frequency (fs).
n
Audio Serial Interface Format
The SDTI, SDTO0, SDTO1, BCLK and LRCK pins are connected to an external controller. The audio data format has
four modes, MSB-first and 2’s compliment. The data format is set using the DIF1-0 bits. SDTI is latched by “
↑
” of BCLK.
SDTO0 and SDTO1 are latched by “
↓
”.
Outputs data of SDTO0 are the same as SDTO1’s. SDTO1 can be generated to “L” when DMUTE bit is
“1”.
No.
DIF1 bit
DIF0 bit
SDTO0/SDTO1(ADC)
0
0
0
20bit MSB justified
1
0
1
20bit MSB justified
2
1
0
20bit MSB justified
20bit MSB justified
1
1
16bit I
2
S compatible
16bit I
2
S compatible
3
1
1
20bit I
2
S compatible
20bit I
2
S compatible
Table 1. Audio Data Format
LRCK(i)
SDTI (DAC)
16bit LSB justified
20bit LSB justified
BCLK
≥
32fs
≥
40fs
≥
40fs
= 32fs
≥
40fs
Figure
Figure 9
Figure 10
Figure 11
Figure 12
Figure 12
Default
BCLK(i:64fs)
SDTO0,1(o)
0
1
2
19
17
18
20
31
0
1
2
19
17
18
20
31
0
19
1
18
0
19 18
3
2
0
19
SDTI(i)
1
14
0
12 11
1
14
0
12 11
SDTO0,1-19:MSB, 0:LSB
SDTI-15:MSB, 0:LSB
Lch Data
Rch Data
Don’t Care
Don’t Care
3
2
BCLK(i:32fs)
SDTO0,1(o)
0
1
2
9
10
12
13
15
0
1
2
9
10
12
13
15
0
19
1
18
8
19 18
8
11 10
19
SDTI(i)
1
6
0
4
3
1
15
0
5
4
11 10
2
5
4
7
6
17
15 14 13
3
11
14
9
5
7
17
1
13
15
30
17
3
3
17
14 13
7
6
3
2
15
14
11
4
5
6
7
9
1
15
13
2
2
Figure 9. Audio Data Timing (No.0)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AK4566 | 制造商:AKM 制造商全稱:AKM 功能描述:20bit Stereo CODEC with built-in IPGA & HP-AMP |
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| AK4568AER | 功能描述:IC CODEC LOW POWER 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買(mǎi)時(shí)間 標(biāo)準(zhǔn)包裝:1,000 |
| AK4569 | 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Stereo CODEC with IPGA & HP-AMP |
| AK4569VN | 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Stereo CODEC with IPGA & HP-AMP |
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