- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385091 > AK4388ET (Asahi Kasei Microsystems Co.,Ltd) 192kHz 24-Bit 2ch ツヒ DAC PDF資料下載
參數(shù)資料
| 型號(hào)： | AK4388ET |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 192kHz 24-Bit 2ch ツヒ DAC |
| 中文描述： | 192kHz的24位2通道ツヒ數(shù)模轉(zhuǎn)換器 |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 198K |
| 代理商： | AK4388ET |
ASAHI KASEI
[AK4388]
MS0485-E-01
2006/07
- 14 -
1. Grounding and Power Supply Decoupling
VDD and VSS are supplied from analog supply and should be separated from system digital supply. Decoupling
capacitor, especially 0.1
μ
F ceramic capacitor for high frequency should be placed as near to VDD as possible. The
differential Voltage between VDD and VSS pins set the analog output range.
2. Analog Outputs
The analog outputs are single-ended and centered around the VCOM voltage. The output signal range is typically
3.20Vpp (typ@VDD=5V). The internal switched-capacitor filter and continuous-time filter attenuate the noise generated
by the delta-sigma modulator beyond the audio passband. The output voltage is a positive full scale for 7FFFFFH
(@24bit) and a negative full scale for 800000H (@24bit). The ideal output is VCOM voltage for 000000H (@24bit).
DC offsets on analog outputs are eliminated by AC coupling since analog outputs have DC offsets of VCOM + a few mV.
Figure 8 shows an example of the external LPF with 3.20Vpp (1.13Vrms) output. Figure 9 shows an example of the
external LPF with 2Vrms output.
10u
220
AOUT
2.2nF
AK4388
22k
3.2Vpp (1.13Vrms)
Analog
Out
fc=328.8kHz, g=-0.064dB at 40kHz
Figure 8. External 1
st
order LPF Circuit Example (simple)
390p
3.9k
2.7k
3.9k
390p
+Vop
3.3k
-Vop
AOUT
10u
fc=125.8kHz, Q=0.752, g=0.058dB at 40kHz
Analog
Out
22k
AK4388
5.93Vpp (2.09Vrms)
Figure 9. External 2
nd
order LPF Circuit Example (using op-amp with dual power supplies)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4388VT | 192kHz 24-Bit 2ch ツヒ DAC |
| AK4393VF | ADVANCED MULTI-BIT 96KHZ 24-BIT DAC |
| AK4393 | ADVANCED MULTI-BIT 96KHZ 24-BIT DAC |
| AK4394 | ADVANCED MULTI-BIT 192KHZ 24-BIT DAC |
| AK4394VF | ADVANCED MULTI-BIT 192KHZ 24-BIT DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4388ETP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4388VT | 制造商:AKM 制造商全稱:AKM 功能描述:192kHz 24-Bit 2ch ツヒ DAC |
| AK4390 | 制造商:AKM 制造商全稱:AKM 功能描述:Ultra Low Latency 32-Bit ΔΣ DAC |
| AK4390EF | 制造商:AKM 制造商全稱:AKM 功能描述:Ultra Low Latency 32-Bit ΔΣ DAC |
| AK4390EFP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。