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參數(shù)資料
| 型號(hào)： | AK4115VQ |
| 廠商： | ASAHI KASEI POWER DEVICES CORP |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | High Feature 192kHz 24bit Digital Audio Interface Transceiver |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-64 |
| 文件頁(yè)數(shù)： | 27/64頁(yè) |
| 文件大?。?/td> | 606K |
| 代理商： | AK4115VQ |
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ASAHI KASEI
[AK4115]
MS0573-E-00
2006/12
- 27 -
The pre-emphasis information is detected and reported on PEM bit. This informations is extracted from channel 1 by
default. It can be switched to channel 2 by the CS12 bit in control register.
PEM
Pre-emphasis
Byte 0
Bits 3-5
≠
0X100
0X100
0
1
Table 15. PEM in Consumer Mode
OFF
ON
PEM
Pre-emphasis
Byte 0
Bits 2-4
≠
110
110
0
1
Table 16. PEM in Professional Mode
OFF
ON
De-emphasis Filter Control
The AK4115 includes a digital de-emphasis filter (tc=50/15
μ
s). This is an IIR filter corresponds to four sampling
frequencies (32kHz, 44.1kHz and 48kHz). When DEAU bit=“1”, the de-emphasis filter is enabled automatically by the
sampling frequency and pre-emphasis information in the channel status. The AK4115 is in this mode by default. In
parallel control mode, the AK4115 is always placed in this mode and the status bits in channel 1 control the de-emphasis
filter. In serial control mode, DEM0/1 bits control the de-emphasis filter when the DEAU bit is “0”. The internal
de-emphasis filter is bypassed and the recovered data is available without any change if either the pre-emphasis or
de-emphasis mode is OFF. When the PEM bit is “0”, the internal de-emphasis filter is always bypassed.
PEM
FS3
FS2
FS1
1
0
0
0
1
0
0
1
1
0
0
1
1
(Others)
0
x
x
x
Table 17. De-emphasis Auto Control at DEAU bit = “1” (Default)
PEM
DEM1
DEM0
1
0
0
1
0
1
1
1
0
1
1
1
0
x
x
Table 18. De-emphasis Manual Control at DEAU bit = “0”
FS0
0
0
1
Mode
44.1kHz
48kHz
32kHz
OFF
OFF
x
Mode
44.1kHz
OFF
48kHz
32kHz
OFF
Default
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4115 | High Feature 192kHz 24bit Digital Audio Interface Transceiver |
| AK4116VN | Low Power 48kHz Digital Audio Receiver |
| AK4120 | Sample Rate Converter with Mixer and Volume |
| AK4121A | Asynchronous Sample Rate Converter |
| AK4121AVF | Asynchronous Sample Rate Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4115VQP | 功能描述:IC AUDIO DECODER 24BIT 64LQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類(lèi)型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱(chēng):Q4645799 |
| AK4116 | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:192kHz digital audio receiver |
| AK4116_05 | 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Low Power 48kHz Digital Audio Receiver |
| AK4116384D | 制造商:ACCUTEK 制造商全稱(chēng):ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
| AK4116384G | 制造商:ACCUTEK 制造商全稱(chēng):ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
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