參數(shù)資料
型號(hào)： AK4528
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： HIGH PERFORMANCE 24BIT 96KHZ AUDIO CODEC
中文描述： 高性能24位96kHz的音頻編解碼器
文件頁(yè)數(shù)： 14/29頁(yè)
文件大?。?/td> 284K
代理商： AK4528
ASAHI KASEI
[AK4528]
MS0011-E-00
2000/1
- 14 -
n
Parallel/Serial Mode Control
When P/S= “H”, AK4528 is in parallel mode. The audio interface format is selected by DIF pin, and DFS and CK0-1 pins
select the frequency of MCLK.
When P/S= “L”, AK4528 is in serial mode. The CKS1, CKS0 and DIF pins are changed to CDTI, CCLK and CSN pins
respectively. The DEM0-1 and DFS are ORed between pin and register respectively, so those are able to control by pins
even in serial mode. To control all the functions by register, set DEM0-1 and DFS pins “L”.
n
Digital High Pass Filter
The ADC has a digital high pass filter(HPF) for DC offset cancel. The cut-off frequency of the HPF is 0.9Hz at fs=44.1kHz
and also scales with sampling rate (fs). This HPF can be off for each channels by register.
n
Output Volume
The AK4528 includes digital volumes (OATT) with 128 levels (including MUTE) in front of DAC. The OATT is a
pseudo-log volume linear-interpolated internally. When the level is changed, the transition to new value takes 8031
levels(max) and is done by soft transition. Therefore, there is not any switching noise.
n
De-emphasis Filter
The DAC includes the digital de-emphasis filter (tc=50/15μs) by IIR filter. This filter supports to three frequencies
(32kHz, 44.1kHz and 48kHz). This setting is done by contorl register and always OFF at double speed mode.
No
0
1
2
3
DEM1
0
0
1
1
DEM0
0
1
0
1
Mode
44.1kHz
OFF
48kHz
32kHz
Default in serial mode
Table 6. De-emphasis control (DFS=”0”)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4528_04 制造商:AKM 制造商全稱:AKM 功能描述:High Performance 24Bit 96kHz Audio CODEC
AK4528_12 制造商:AKM 制造商全稱:AKM 功能描述:High Performance 24Bit 96kHz Audio CODEC
AK4528VF 制造商:AKM 制造商全稱:AKM 功能描述:High Performance 24Bit 96kHz Audio CODEC
AK4528VFP-E2 功能描述:IC AUDIO CODEC 24BIT 28VSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
AK4528VM 制造商:AKM 制造商全稱:AKM 功能描述:High Performance 24Bit 96kHz Audio CODEC
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