參數(shù)資料
型號(hào): AK4343
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Stereo DAC with HP/RCV/SPK-AMP
中文描述: 立體聲DAC惠普/垃圾車/胰腎聯(lián)合移植腺苷
文件頁(yè)數(shù): 59/98頁(yè)
文件大?。?/td> 851K
代理商: AK4343
ASAHI KASEI
[AK4343]
MS0478-E-01
2006/10
- 59 -
<Analog Mixing Circuit for Headphone Output>
When AIN3 bit = “0”, DACH, MINH, LINH2 and RINH2 bits controls each path switch.
MIN path mixing gain is
20dB(typ)@HPG bit = “0” when the external input resistance is 20k
.
LIN2, RIN2 and DAC pathes mixing gain is 0dB(typ)@HPG bit = “0”.
LIN2 pin
0dB
M
I
X
LINH2 bit
MIN pin
20dB
MINH bit
0dB
DACH bit
DAC Lch
HPL pin
Figure 54. HPL Mixing Circuit (AIN3 bit = “0”, HPG bit = “0”)
RIN2 pin
0dB
M
I
X
RINH2 bit
MIN pin
20dB
MINH bit
0dB
DACH bit
DAC Rch
HPR pin
Figure 55. HPR Mixing Circuit (AIN3 bit = “0”, HPG bit = “0”)
When AIN3 bit = “1”, DACH, LINH2, RINH2, LINH3, RINH3, MICL3 and MICR3 bits controls each path switch. All
pathes mixing gain is 0dB(typ)@HPG bit = “0”
LIN2 pin
0dB
M
I
X
LINH2 bit
LIN3 pin
0dB
LINH3 bit
0dB
DACH bit
HPL pin
MICL3 bit
LIN1 pin
Gain-Amp Lch
DAC Lch
*These blocks are not
available at PLL mode.
Figure 56. HPL Mixing Circuit (AIN3 bit = “1”, HPG bit = “0”)
RIN2 pin
0dB
M
I
X
RINH2 bit
RIN3 pin
0dB
RINH3 bit
0dB
DACH bit
HPR pin
MICR3 bit
RIN1 pin
Gain-Amp Rch
DAC Rch
*These blocks are not
available at PLL mode.
Figure 57. HPR Mixing Circuit (AIN3 bit = “1”, HPG bit = “0”)
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