- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385091 > AK4366 (Asahi Kasei Microsystems Co.,Ltd) Low Power 24-Bit 2ch DAC with HP-AMP PDF資料下載
參數(shù)資料
| 型號： | AK4366 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Low Power 24-Bit 2ch DAC with HP-AMP |
| 中文描述： | 低功耗24位2通道DAC，具有惠普腺苷 |
| 文件頁數(shù)： | 29/31頁 |
| 文件大?。?/td> | 266K |
| 代理商： | AK4366 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當前第29頁第30頁第31頁
ASAHI KASEI
AKM CONFIDENTIAL
[AK4366]
REV 0.6
2003/3
- 29 -
1. Grounding and Power Supply Decoupling
The AK4366 requires careful attention to power supply and grounding arrangements. VDD and HVDD are usually
supplied from the analog power supply in the system. When VDD and HVDD are supplied separately, VDD must be
powered-up at the same time or earlier than HVDD. When the AK4367 is powered-down, HVDD must be powered-down
at the same time or later than VDD. VSS must be connected to the analog ground plane. System analog ground and digital
ground should be connected together near to where the supplies are brought onto the printed circuit board. Decoupling
capacitors should be as close to the AK4366 as possible, with the small value ceramic capacitors being the nearest.
2. Voltage Reference
The input voltage to VDD pin sets the analog output range. A 0.1
μ
F ceramic capacitor and a 10
μ
F electrolytic capacitor is
connected between VDD and VSS pins, normally. VCOM is a signal ground of this chip (0.45 x VDD). An electrolytic
2.2
μ
F in parallel with a 0.1
μ
F ceramic capacitor attached between VCOM and VSS pins eliminates the effects of high
frequency noise. No load current may be drawn from VCOM pin. All signals, especially clock, should be kept away from
VDD and VCOM pins in order to avoid unwanted coupling into the AK4366.
3. Analog Outputs
The analog outputs are single-ended outputs and 0.58xVDD Vpp(typ)@-3dBFS centered on the VCOM voltage. The input
data format is 2’s compliment. The output voltage is a positive full scale for 7FFFFFH(@24bit) and negative full scale for
800000H(@24bit). The ideal output is VCOM voltage for 000000H(@24bit). If the noise generated by the delta-sigma
modulator beyond the audio band causes problems, attenuation by an external filter is required.
DC offsets on the analog outputs is eliminated by AC coupling since the analog outputs have a DC offset equal to VCOM
plus a few mV.
相關PDF資料 |
PDF描述 |
|---|---|
| AK4367VN | Low Power 24-Bit 2ch DAC with HP-AMP & Output Mixer |
| AK4368EG | DAC with built-in PLL & HP-AMP |
| AK4370 | 24-Bit 2ch DAC with HP-AMP & Output Mixer |
| AK4370VN | 24-Bit 2ch DAC with HP-AMP & Output Mixer |
| AK4371 | DAC with built-in PLL & HP-AMP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AK4366_04 | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 24-Bit 2ch DAC with HP-AMP |
| AK43664D | 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
| AK43664G | 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
| AK43664S | 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
| AK43664W | 制造商:ACCUTEK 制造商全稱:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
發(fā)布緊急采購，3分鐘左右您將得到回復。