參數(shù)資料
型號(hào): AK4538
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16Bit DS CODEC with MIC/HP/SPK-AMP
中文描述: 16位副編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 35/70頁
文件大?。?/td> 485K
代理商: AK4538
ASAHI KASEI
[AK4538]
MS0198-E-01
2003/5
- 35 -
(2) Using BEEPL and BEEPR pins
15k
MOUT2
0.1u
BEEPL
20k
±
30%
45%AVDD
15k
BEEPR
20k
±
30%
45%AVDD
BPSSP
SPP
SPN
SPK-Amp
BPSSP
AK4538
Figure 30. Connection example for 300mW output using BEEPL and BEEPR pins
Note)
1.
MOUT2 output is recommended to be AC coupled to avoid amplified DC offset of common voltage of MOUT2 and
BEEP-Amp is output via BTL Speaker-Amp (that means stand-by current is increased). Capacitor size affects the
cut-off frequency of 1
st
order LPF made by this AC coupling capacitor and series resister in front of BEEP input.
BEEP input path has 1.9dB greater gain than MIN input since ALC2 circuit is not included in BEEP path.
Internal feedback resister of BEEP-Amp which determines BEEP-Amp gain has 30% sample variation.
2.
3.
n
MONO OUTPUT (MOUT2 pin)
The mixed Lch/Rch signal of DAC is output from the MOUT2 pin. When the MOUT2 bit is “0”, this output is OFF and the
MOUT2 pin is forced to VCOM voltage. The load impedance is 10k
(min.). When the PMSPK bit is “0”, the
Speaker-amp enters power-down-mode and the output is placed in a Hi-Z state.
相關(guān)PDF資料
PDF描述
AK4538VN 16Bit DS CODEC with MIC/HP/SPK-AMP
AK4541VQ AC’97 Rev 2.1 Multimedia Audio CODEC
AK4541 AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543 AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543VQ AC’97 Rev 2.1 Multimedia Audio CODEC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4538VN 制造商:AKM 制造商全稱:AKM 功能描述:16Bit DS CODEC with MIC/HP/SPK-AMP
AK4541 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4541VQ 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC
AK4543VQ 制造商:AKM 制造商全稱:AKM 功能描述:AC’97 Rev 2.1 Multimedia Audio CODEC