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參數(shù)資料
| 型號： | AK4561 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16bit CODEC with built-in ALC and MIC/HP-Amp |
| 中文描述： | 16位編解碼器在ALC和內(nèi)置麥克風(fēng)/惠普放大器 |
| 文件頁數(shù)： | 35/48頁 |
| 文件大?。?/td> | 332K |
| 代理商： | AK4561 |
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ASAHI KASEI
AKM CONFIDENTIAL
[AK4561]
Rev. 0.9
2000/09
- 35 -
n
LINEOUT
The signals of DAC or Analog Through Mode are gained to +7.5dB (@VA= 2.8V, Vol2-0 bit = “010”) internally, and its
signal is output from LINEOUT. This gain can be changed by VOL2-0 bits.
Output level of LINEOUT is +2dBV and centered HVCM voltage. Load resistance is min. 10k
. (Refer to Figure 19)
Power supply voltage for LINEOUT is supplied from HVDD voltage. The supplied HVDD voltage does not change
output level of LINEOUT. But if HVDD voltage is low, a distortion characteristic of LINEOUT is bad.
LOUT1 and ROUT1 outputs are muted by S10 bit. Then LOUT1 and ROUT1 pins is output to HVCM voltage and enter
Power-Save-Mode. (Refer to Figure 20). When PM7 bit is “0”, LOUT1 and ROUT1 pins become Power-Down-Mode
and output signal is Hi-z. (Refer to Figure 21)
When PD pin changes from “L” to “H” after power-up, LOUT1 and ROUT1 pins become Power-Save-Mode. In
Power-Save-Mode, LOUT1 and ROUT1 pins gradually become HVCM voltage via an internal resistor (R1: typ.200k
)
from Hi-z to decrease a pop noise. And when Power OFF, the pop noise can be decreased by controlling via Power-
Save-Mode.
Figure 19. LINEOUT Normal Operation
Figure 20. LINEOUT Power-Save-Mode
Figure 21. LINEOUT Power-Down-Mode
+
-
R1
C1
R2
LOUT1/ROUT1
LOUT
LOUT
LOUT
LOUT
LOUTP
+
-
R1
C1
R2
LOUT1/ROUT1
LOUT
LOUT
LOUT
LOUT
LOUTP
+
-
R1
C1
R2
LOUT1/ROUT1
LOUT
LOUT
LOUT
LOUT
LOUTP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4561VQ | 16bit CODEC with built-in ALC and MIC/HP-Amp |
| AK4562 | LOW POWER 20BIT CODEC WITH PGA |
| AK4562VN | LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | Low Power 16bit 4ch ADC & 2ch DAC with ALC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4561VQ | 制造商:AKM 制造商全稱:AKM 功能描述:16bit CODEC with built-in ALC and MIC/HP-Amp |
| AK4562 | 制造商:AKM 制造商全稱:AKM 功能描述:EVALUATION BOARD REV.A FOR AK4562 |
| AK4562VN | 制造商:AKM 制造商全稱:AKM 功能描述:LOW POWER 20BIT CODEC WITH PGA |
| AK4563A | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
| AK4563AVF | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power 16bit 4ch ADC & 2ch DAC with ALC |
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