參數(shù)資料
型號(hào): AK4537
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP
中文描述: 16位ツヒ立體聲編解碼器與麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁(yè)數(shù): 26/76頁(yè)
文件大?。?/td> 576K
代理商: AK4537
ASAHI KASEI
[AK4537]
MS0202-E-04
2005/04
- 26 -
MIC Gain Amplifier
AK4537 has a Gain Amplifier for Microphone input. This gain is 0dB or 20dB, selected by the MGAIN bit (Table 14).
The typical input impedance is 30k
.
MGAIN bit
Input Gain
0
1
+20dB
Table 14. MIC Input Gain
The mic gain amp of the AK4537 supports the following three cases:
Default
0dB
MICOUTL
MICOUTR
INT
EXT
MSEL= “0”
Internal
MIC
External
MIC
PMMICL bit = “1”
PMMICR bit = “0”
Figure 19. Internal MIC (Mono)
MICOUTL
MICOUTR
INT
EXT
MSEL= “1”
External
MIC
PMMICL bit = “1”
PMMICR bit = “0”
Internal
MIC
Figure 20. External MIC (Mono)
MICOUTL
MICOUTR
MICL
MICR
MSEL= “0”
MIC Lch
PMMICL bit = “1”
PMMICR bit = “1”
MIC Rch
Figure 21. Stereo MIC
MIC Power
The MPI and MPE pins supply power for the Microphone. These output voltages are 0.75 x AVDD (typ) and the
maximum output current is 1.25mA.
相關(guān)PDF資料
PDF描述
AK4537VN 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP
AK4538 16Bit DS CODEC with MIC/HP/SPK-AMP
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4537VN 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP
AK4537VNP-L 制造商:AKM Semiconductor Inc 功能描述:AK4537VNP-L
AK4538 制造商:AKM 制造商全稱:AKM 功能描述:16Bit DS CODEC with MIC/HP/SPK-AMP
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