參數(shù)資料
型號(hào)： AK4628A
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： High Performance Multi-channel Audio CODEC
中文描述： 高性能多通道音頻解碼器
文件頁(yè)數(shù)： 39/41頁(yè)
文件大?。?/td> 557K
代理商： AK4628A
ASAHI KASEI
[AK4628A]
MS0385-E-00
2005/02
- 39 -
4. Analog Outputs
The analog outputs are also single-ended and centered around the VCOM voltage. The input signal range scales with the
supply voltage and nominally 0.6 x VREFH Vpp. The DAC input data format is 2’s complement. 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). The internal analog filters remove most of the noise generated by the delta-sigma
modulator of DAC beyond the audio passband.
DC offsets on analog outputs are eliminated by AC coupling since DAC outputs have DC offsets of a few mV.
Peripheral I/F Example
The AK4628A can accept the signal of device with a nominal 3.3V supply because of TTL input. The power supply for
output buffer (TVDD) of the AK4628A should be 3.3V when the peripheral devices operate at a nominal 3.3V supply.
Figure 27 shows an example with the mixed system of 3.3V and 5V.
3.3V Analog
5V Analog
3.3V Digital
5V Digital
PLL
I/F
Audio signal
DSP
AK4112B
Analog Digital
Control signal
uP &
Others
AK4628A
5V for input
3.3V for output
Figure 27. Power supply connection example
相關(guān)PDF資料
PDF描述
AK4628AVQ High Performance Multi-channel Audio CODEC
AK4628 HIGH PERFORMANCE MULTI CHANNEL AUDIO CODEC
AK4628VQ HIGH PERFORMANCE MULTI CHANNEL AUDIO CODEC
AK4631 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
AK4632 16-Bit ツヒ Mono CODEC with ALC & MIC/SPK/Video-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4628AVQ 制造商:AKM 制造商全稱:AKM 功能描述:High Performance Multi-channel Audio CODEC
AK4628VQ 制造商:AKM 制造商全稱:AKM 功能描述:HIGH PERFORMANCE MULTI CHANNEL AUDIO CODEC
AK4629 制造商:AKM 制造商全稱:AKM 功能描述:High Performance Multi-channel Audio CODEC
AK4629VQ 制造商:AKM 制造商全稱:AKM 功能描述:High Performance Multi-channel Audio CODEC
AK4631 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP
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